December 2019 meeting

Dave Nordling, Secretary, Reaction Research Society


The Reaction Research Society (RRS) met for our last monthly meeting of the year on December 13, 2019, at the Ken Nakaoka Community Center in Gardena, California. We had a full house with three different universities represented and a few returning members who came out to see how this year was ending for the society. The Compton College STEM club came out and some of them joined the RRS that night. Compton College is working on their own liquid rocket build which may next year see some important testing conducted.

Compton College STEM club at the December 2019 meeting of the RRS. From left to right, Katherine Perez, Desiree Medina, Erik Aparicio, Jamie Alvarez

Frank Chandler who is the director of Cal Poly Pomona’s (CPP) liquid rocket group and an RRS member was also at the meeting to discuss a March test date at the RRS MTA. He mentioned that Cal Poly Pomona recently had a tour of the AstroPak company in Downey, California. AstroPak has been in the business of cleaning mechanical parts for oxygen service for many years. The CPP students got to see each step of the process and learned the importance of maintaining this cleanliness throughout operations. Nearly all liquid rocket projects have decided to use liquid oxygen which has it’s own challenges to meet. Studying and keeping good cleanliness practices is paramount to avoiding catastrophe.

Chris Lujan and Frank Miuccio establish the link to bring in Richard Garcia, our director of research into the meeting.

We also were happy to have our director of research, Richard Garcia, calling into the meeting. Frank Miuccio and Chris Lujan have been very helpful in establishing a call-in number for some of our former and current members to call in when they are away from the city. We hope to have more of our membership calling in so that they may remain informed and active with their membership in the society. As per our tradition, we always value those making the trip to visit us in person.

After calling the meeting to order, and the reading of the treasury report, we covered our agenda items. We covered nearly all of our agenda and had time for special presentation from two members of Long Beach Rocketry at California State University Long Beach (CSULB). The purpose of their visit was to introduce themselves to the RRS.

CSU Long Beach presenters with their latest prototype on display at the December 2019 meeting of the RRS.
Frank Chandler sits at the table next to the Long Beach Rocketry team’s next assembly on display at the December meeting of the RRS.

Corey Fraga and Dan Dao gave us a short presentation of their team and some of their recent accomplishments. Their solid motor rocket project started in 2015 and has done well in recent competitions including the NASA University Student Launch Initiative (USLI) taking fifth place among a long list of worthy competitors. They also brought their most recent prototype vehicle which has a quadricopter drone built into the cargo bay. After the rocket completes its flight and gently touches down from its parachute recovery system, the cargo bay opens from an electric motor driven mechanism which allows the drone to take off and survey the landing site. The idea is to create a system that could be useful in planetary exploration or even in remote or dangerous areas here on Earth.

CSU Long Beach (Corey Fraga, Dan Dao) makes their presentation on their latest competition at Huntsville, AL.

The Long Beach Rocketry group offered to give the RRS a tour of their lab facilities on campus. The RRS graciously accepted their invitation. We should hopefully announce a date soon for this event.

Corey Fraga and Dan Dao finish their presentation at the December meeting of the RRS.

[1] Results from the last MTA launch

The launch report from the December 7, 2019, event has already been posted. We had a successful event despite an earlier concern for bad weather. Thankfully, the rain fell early and had cleared by Saturday morning. We were able to get our equipment set up for the event, but the society needs to invest in a simple sumping pump in case we need to remove any standing water from our bunkers or other enclosed spaces that have failed to drain from a recent rain or flooding. We are thankful to our neighbors at the Friends of Amateur Rocketry (FAR) for letting us borrow their sump pump.

Two students of 99th Street Elementary wait for the next launch in the RRS MTA observation bunker. Many of our observers could use something to stand a little higher to see better.

I also noticed that we could use a few more cinder blocks in the blockhouse. Many of our students are too short to see over the wall and the few blocks we already have are not enough. The RRS should buy a few more cinder blocks and possibly make some standing benches to help our students see their hard work better from the safety of the observation bunker.

An RRS standard alpha takes off into the moist air of December at the MTA.

Another observation made was the students from the neighboring Friends of Amateur Rocketry (FAR) site were often seen walking around too close to the RRS launching site as we were conducting road and air checks for our alpha rocket launches. It appeared that they were searching to recover their rocket from their prior flight, but we aborted three different countdowns due to car movements seen, or people crossing by on the north road adjacent to our property, and even one oblivious individual who was walking downrange of our own RRS MTA launch site as we were in the count!. The RRS and FAR must better coordinate our launch and recovery protocols respecting each others’ boundaries if only for the safety of all people concerned.

FAR and the RRS often conduct events on the same day and since our societies are sharing the launch areas and have many common interests, the RRS will work with FAR to find the best approach to assure safety and smooth operations for all.

[2] Next events at the MTA

Frank Miuccio is already working on the next event with LAPD CSP. The program will likely have its first class possibly on the Friday after the Martin Luther King holiday. Five to six weeks later means that the launch event could take place in late February or early March 2020.

I’ve been planning a launch event at the RRS Mojave Test Area (MTA) much sooner than that. For too many years, the RRS MTA sits empty in January and February for no good reason. I sought to undo this trend by holding an event just with our membership the way that our society used to operate.

At first, I was able to confirm Wolfram Blume who wants to fly his booster and ramjet upper stage system, if only for a system test of his booster, staging mechanism and recovery system. The ramjet upper stage will not be fired and will be loaded with an equivalent weight of water in its gasoline fuel tank to get the correct balance of the final vehicle. It’s a bit of risk to fly the actual ramjet prototype but there is no better way to get the right aerodynamics. It should be a good test and with luck his systems all pass the first flight test at the RRS MTA.

Larry and I have been talking about integrating a commercial hybrid motor into his 38mm fiberglass rocket. If I can acquire the motor parts, Larry will help me get the recovery system and the rest of the motor mounting complete. This will be the first hybrid motor launch from the RRS MTA in a very long time.

Also, John Krell voiced his interest in re-flying his improved avionics payload in an RRS standard alpha. This one will have an expanded accelerometer range to catch the ultra-fast burn of the alpha. He’s working on improving the data rate as recent open-source software changes have downgrading the sampling by half for some inexplicable reason.

CSULB’s Long Beach Rocketry team, (left to right) Corey Fraga and Dan Dao, Frank Chandler (CPP) and John Krell at the December meeting of the RRS

Brian Johnson and Bill Behenna each have avionics packages in development. The RRS has plenty of alpha boosters ready if members can get their payloads integrated into a suitable payload tube in time. We hope to confirm the launch manifest by New Year’s Day so I am hopeful we will have a fun launch day on January 18, 2020. We have also spread the word to our university project teams that the RRS MTA will be open for testing or flights if they can be ready on this date early in the year. The RRS encourages all teams to plan ahead and test early and often to assure their later success.

[3] Progress on the 2020 RRS symposium

Frank Miuccio, our vice president and symposium coordinator, has had some difficulties in confirming the symposium date, but we are hopeful that the April 18, 2020 will be the symposium date. We also may have the option for April 25, 2020. The Ken Nakaoka Community Center of Gardena will hopefully confirm the date for our symposium Monday.

The Long Beach Rocketry group and the Compton College STEM club have both indicated their interest in presenting or exhibiting at the 2020 RRS symposium. In many cases, it can be first come, first serve. This will be the fourth symposium in a row for us and we hope to continue the momentum we’ve built. I have a few government and private companies in mind to give us a great slate of speakers. We just need to confirm the symposium date.

[4] Treasurer’s report on the membership roster, dues payment policy change

Chris Lujan has been surveying the sign-up sheets from past months over recent years to help establish who has been attending meetings and how often. Active membership requires participation in the society as it does with any group. Attending monthly meetings is not the only means of staying active as attending launch events or participating in outside events also qualifies. The RRS is working on building a firm definition to make clear when a member is or is not active. This is important as our Constitution requires both an administrative membership class AND active membership to retain voting rights. Each year, we try to reach our past and present members but without effort on the member’s part to keep their information current, our elections and voting on important measures must go on without them. Contacting any member of the RRS executive council is the best way to keep the society updated on your whereabouts and contact information.. The membership roster is managed by the RRS treasurer.

treasurer@rrs.org

Chris is also working up some percentages for how many of our active membership are current with their dues payment. Initial estimates are encouraging, but since we have many new members who paid upon their induction, these high percentages make sense. It is our longer term members who are often neglecting their duty to keep their dues paid each year. Dues payment is also an essential element of membership.

The executive council has voted a policy change to when dues are to be paid. Effective immediately, all dues payments must be made by January 1st of each calendar year. I was glad that the society has supported this firm fixed date which makes accounting for dues much easier on our treasurer. The membership roster will also track dues payment and active membership status. For the several lifetime members in the society, this past membership class will remain and dues payment is not required for these persons, however, remaining active with the society is still a requirement to keep voting rights.

[5] 2020 Constitutional Committee report

Frank Miuccio was able to report that the 2020 Constitutional Committee has met a couple of times in the last two months and is reviewing the last page of the new draft. The committee will present its draft to the executive council at year’s end. The executive council will review the draft before presenting it to our administrative membership for consideration and a subsequent two-thirds ratification vote.

[6] Social media updates

Our social media coordinators were both not in attendance in December. The RRS continues to be active on Instagram. Our Facebook page needs some management. The RRS is also looking at trying to build a calendar feature on the RRS.ORG website to better announce events.

secretary@rrs.org

The RRS continues to use WordPress for its ease of use and simplicity, but the society has been considering reformatting and restyling our page or at least re-organizing the menu options to make finding common things easier. This will be a task for the new RRS secretary.

[7] CSFM committee on amateur rocketry

The California State Fire Marshal’s (CSFM) office has been holding hearings with the broader pyrotechnic operator’s community throughout the state this year. Most of the community is made up of the fireworks and special effects community. Amateur rocketry is a smaller and separate group which has our own interests we operate very differently from the other larger groups.

The RRS (Larry Hoffing), ROC (Chris Kobel) and FAR (Mark Holthaus) discuss a collective list of proposed changes to CSFM definitions governing amateur rocketry on 12/04/2019.

Mark Holthaus of FAR has been reviewing the definitions pages of the California laws relevant to amateur rocketry. The RRS and FAR have met on three different occasions in the last two months. The RRS has found FAR’s proposed changes to be very reasonable and accurately reflect how we can continue to operate safely. We have also included feedback from members of the Rocketry Organization of California (ROC) at the last two meetings. David Reese of ROC has been particularly helpful in improving and clarifying the language which governs our hobby and we are also grateful for his assistance.

Mark has made arrangements to discuss our proposed changes with the CSFM office on Monday, December 16th. We hope this informal meeting goes well and that all of our recommendations can be implemented which will assure both safety and legal operations for our groups. Some of the amateur rocketry groups are not national organizations and would be harmed by excessive regulation from the state. The CSFM office has been very welcoming and open to ideas thus far. CSFM has not often held these kinds of reviews and the RRS recognizes the great opportunity we’ve had to help shape policy for everyone in rocketry in California.

[8] RRS executive council election results for 2020

Larry Hoffing, our appointed election chairman for this annual election cycle, certified his results to the membership at our December 2019 meeting as required per our Constitution. Each officer was elected by unanimous vote. Our new executive council officers starting in January 1, 2020 are as follows:

Osvaldo Tarditti, president@rrs.org

Frank Miuccio, vicepresident@rrs.org

Drew Cortopassi, secretary@rrs.org

Chris Lujan, treasurer@rrs.org

The RRS is grateful to our election chairman, Larry Hoffing, for fulfilling his duties to the society. The council will appoint a new chairman next November when we hold nominations for the next election cycle. The society is thankful to our new and returning officers who have stepped up to serve the society for this next exciting year, 2020.

[9] Proposed RRS MTA standard fee schedule

The RRS has become increasingly active with more and more requests to use our Mojave Test Area (MTA). This is a very good thing, but often scheduling of hot-fire events has become excessively chaotic. The RRS understands that sometimes things happen that can force cancellation of a planned event with little or no notice. Weather is often the main culprit of such things. However, as one who has participated in coordinating launch events at the MTA this year in conjunction with our RRS president, I have seen many occasions when poor planning is the only reason for a last minute cancellation. Worst yet, the society has also received far too many last minute requests for use of our site. The RRS is in the process of drafting a standard fee schedule which will explain the requirements for outside users of the MTA. The exact details of this forthcoming policy are still under discussion, but the following is some of the ideas that were discussed.

The RRS is happy to help as many organizations as we can, but our customers must understand that:

(1) We are a volunteer society. Few, if any, of us are paid for the substantial time and resources spent to make these events possible. While we often generously donate our time to support and promote these events, the society needs money to operate and improve our site and this must come from charging fees to pay for repairs improvement projects. A standard fee schedule will be drafted, reviewed and approved by the society before the end of the year.

(2) We operate the RRS MTA by APPOINTMENT ONLY! There is no sign-up calendar like what is used by other amateur rocketry organizations such as FAR. We operate in this fashion because we stress the importance of advanced planning. Last minute requests for using the MTA site will very likely be rejected. Rocketry is a dangerous hobby and the importance of careful preparation is reflected in the desire of the RRS to accept only advance notification for all proposed projects. This not only makes planning events easier for all parties, but it makes them safer. Contact the RRS president for all requests to use the RRS MTA.

(3) Our indemnification forms are required to be signed and submitted by ALL PERSONS well in advance of attending the event. This includes spectators, spouses, significant others, and children. This has been standing policy at the RRS MTA and will remain so. Just showing up at our MTA site on the day of the event is NOT acceptable and people will be turned away if our policies are not respected.

(4) We expect several weeks advance notice to conduct a thorough review of each new project. This means that all groups must have their operating procedures, checklists, drawings, schematics already prepared for the pyro-op’s review when the request is submitted.well in advance of the requested event date. Expecting the pyro-op to examine your intended test article and procedures for the project only on the day of the event upon their arrival is NOT REASONABLE.

Events at the MTA will be conducted with a pyro-op appointed by the RRS. Our pyro-op should have had the opportunity to see everything well planned and well in advance. Attending RRS monthly meetings is an excellent way for potential users to familiarize themselves with the society and our expectations. Submitting your project description on an RRS standard record form a month in advance and was formerly policy at the RRS. Everyone must understand that the pyro-op in charge can refuse any test at any time for any reason making your journey out to the MTA all for naught.

Based on an accumulation of both good and bad experiences, I will undertake a project to draft an official RRS policy on testing at the MTA for our outside customers that will take affect on January 1, 2020. I was glad to get a lot of feedback from potential customers and other members at the December meeting. To our society members, please send me your feedback soon as I will be working this policy out in the next two weeks before the executive council approves it.

The RRS will begin charging standard daily fees for use of the MTA site and charging a separate daily fee for the pyrotechnic operator in charge at this event. Pricing may vary with private companies and universities, but in all cases, fees are expected to be paid before approval of the event is given by the RRS. Cancellations within two weeks of the event will result in forfeiture of all of those fees for that event date and new fees must be paid again for a new test date. When customers stand to lose their fees if they fail to deliver on their commitments to the RRS, they will better understand the importance of managing their projects better as they must now avoid the cost of cancellations. Other groups, both amateur and professional organizations, operate successfully with these kinds of policies and the RRS will be enforcing their own policies soon.

[10] Review of the Gas Guzzler ramjet project

Wolfram Blume and his wife were kind enough to stop by the December RRS meeting bringing his booster rocket for one more inspection. I will be the pyro-op in charge of his first test flight on 1/18/2020 and I wanted a closer look at how secure and stiff his fins were. Based on my inspection, his booster looks ready for rail launch. With luck, his staging and recovery systems will function without issue. Wolfram has borrowed from prior successful designs flown at ROC events in Lucerne Valley. The RRS is glad to assist him with this ambitious project.

Wolfram Blume stands with his booster used on the Gas Guzzler project.

[11] Solid propellant making classes

The RRS was approached about restarting our composite grain propellant making classes at the RRS MTA. After some careful assessment of our equipment, resources and available personnel, the RRS is not yet ready to offer these classes again. Twenty years ago, the society held a few of these solid motor building classes which became very popular. The RRS is building back our capabilities and this will take some time.

The Friends of Amateur Rocketry (FAR) has offered similar classes at their site and for the time being, the RRS must refer interested parties to them.

[12] SuperDosa project update

The SuperDosa project was established two years ago with the intent of the RRS restarting our large solid motor building skills to progressively build larger vehicles able to not only breach the von Karman line (100 km ASL), but surpass the current amateur rocketry altitude record holder. Despite our increasing membership, we have not had much progress to date. Given my commitments to several liquid rocket projects, I am handing over my leadership duties to Drew Sherman. Drew is a founder of Leo Aerospace and also an active RRS member. His interests very much align with this project and with the combined resources of others in the society building high powered motors, we hope that Drew can continue this project to its lofty goal of bringing the title back to the Reaction Research Society.

[13] RRS MTA facility improvements

Osvaldo Tarditti, our society president, continues to lead our MTA facility improvement projects, chief among those is improving our bathroom facilities at the site. Osvaldo has drafted plans for an improved bathroom facility at our remote RRS MTA site. The RRS will be soliciting bids from local contractors soon and we hope to commence this important improvement at the MTA sometime this spring and complete by the summer. The society has nearly enough funds for this project, but we are hoping to receive a few more thousand dollars to initiate this project sooner than later.

Also on our list of improvements is a blockhouse replacement, horizontal mounting plate at our testing area to create a regular interface pattern for future users rather than continue the unregulated drilling of anchor bolts (and the hated “male” variety of these anchor bolts) into our concrete slab. RRS members, Dmitri Timohovich and Wilbur Owens have been supporting the society on this improvement as it will require heavy equipment to place and secure this trench plate at the RRS MTA.

Larry Hoffing has recognized that the society will soon need a second 40-foot container for storage. We will be acquiring some new solid propellant mixing equipment and we need to rearrange our inventory in a more organized and accessible fashion. Whether this comes in the form of a new container on our MTA site or possibly one given to us from our site tenant, Polaris Propulsion Inc., remains to be seen. The society will continue to monitor progress and set goals to complete these tasks.

IN CLOSING

This will be my last monthly report as I am stepping down as secretary of the RRS. I have enjoyed serving in this role for the last three years, but it is time for me to allow a new secretary to lend his voice to you, our readers. I will remain active with the society, but only as a member engaged in many projects around the society. The society grows as we bring new members in and the society gets new ideas. It is also important that we also get new leadership from time to time. I hope to see more of our new administrative membership step up for these executive council roles in the future. There is no better way to help the society than with service.

As my last parting comment, I would encourage ALL of our membership to write and submit articles. The RRS.ORG website is one of the best ways we educate and inform the public about the things that interest the society in rocketry. Even simple academic subjects are excellent ideas. Next year, you may see a couple articles from me, but I want to encourage all of our membership to do more than just mention ideas in conversations, but write them down, text them, email them, convey them to the RRS secretary. It is the job of the RRS secretary to be the chief editor and means of publication for our membership. Past articles are welcome as we have re-printed ones from our long past. We also heartily welcome new content. Any time is a good time to submit.

Our next meeting will be held January 10, 2020, at the Ken Nakaoka Community Center at 7:30PM. If there are questions or corrections, please notify the RRS secretary. After January 1, this will be Drew Cortopassi.

secretary@rrs.org

With gracious thanks to the society, I hope to see everyone in the new year.

Group photo taken at the end of the December 13, 2019 meeting of the RRS in Gardena.

MTA launch, 2019-12-07

by Dave Nordling, Secretary, Reaction Research Society


The RRS had our last launch event of the year this Saturday, December 7, 2019, at the Mojave Test Area (MTA). We were hosts again to the Los Angeles Police Department (LAPD) Community Safety Partnership (CSP) and this time with 99th Street Elementary.

The RRS has been reworking some of our rails including our trusted and reliable alpha rail launcher. Months of use had slowly built up uneven layering of zinc-sulfide on the rail surfaces making loading difficult but protecting the steel surfaces from the slow corrosion of the dry salt lake bed just a few miles away. Osvaldo did great work in giving our alpha rail launcher a new lease on life. Thanks also to Russell Hoffing and his kids for helping out with the installation before the event crew arrived.

The refurbished alpha rail launcher is being re-installed on its concrete pad before the 12-07-2019 launch event at the MTA.

The winter seasonal rains have arrived a little early to southern California, but the weather began to clear today just before we started. The winds were very low which was excellent for launching rockets. From the washing action of the rain this week, the loose sand drifted into a vein-like pattern over the harder sand below which gave the ground a slightly “Martian” quality. It was cool but not cold and a great day for a launch.

The 8-inch adjustable rail launcher is still under repair from the failed July 2019 launch. The inner adjustable rail slides are being built from scratch. One of the outer braces was blown off and some of the angle frame pieces are distorted. This will require a lot of rework but we hope to have this launcher back in service soon.

We had a minor problem from the rainwater gathering in the bunker. It wasn’t more than an inch or two deep, but on a cool December morning, it would be a miserable place for our guests. The RRS was grateful to some of the Friends of Amateur Rocketry who let us borrow a small sump pump to pull the standing water out.

Frank Miuccio mans a simple broom to sweep the water towards the small sump pump in the corner. The RRS thanks our neighbors at the Friends of Amateur Rocketry site for their assistance.

We gave the students the standard safety briefing about how to avoid the dangers at the site. We also gave them a live demonstration of how the micrograin zinc and sulfur powder burns in the open showing the brilliant yellow color. Larry Hoffing had also prepared a small sample of solid composite propellant made with ammonium perchlorate and an iron oxide accelerant.

A sample of micrograin propellant lights in a metal cup to show how two simple pure substances can burn so energetically.

Larry Hoffing and his grandsons had a few model rockets to try out at the event. After setting up the launch wire and clamping the smaller 6-foot long 1010 rail to a suitable rigid and weighted base. Winds were very light all day so we had few problems from the elements.

Larry Hoffing and his assistants posing before starting the launch of a few small model rocket motors. The RRS MTA is for rockets of all sizes.

Larry flew a classic Estes model, Big Bertha, which is always a crowd-pleaser. This vintage model design is slowly powered at take-off by a C6-3 commercial motor then gains traction after its fins start working. It has flown to couple hundred feed then at apogee made a nice parachute recovery.

The high-powered fiberglass bodied rocket launched on a 1010 C-rail was boosted by a vintage Flight Systems F6-7 motor, but failed to move vertically up the rail by more than a couple of feet before settling nicely on the launch pad with an impressive 6-inch exhaust flame. It will be back to the drawing board for that model with the possible addition of a more powerful G-sized AP motor or a H-sized hybrid. The students at 99th Street Elementary witnessed the launch, but the biggest part of the event was yet to begin.

Osvaldo holds the finished product, a loaded RRS standard alpha with micrograin propellant. Note the painter’s tape covering the four mounting bolt holes which also minimizes spillage.

The ten RRS standard alpha rockets from the students were already loaded the night before. A last minute addition of another alpha painted by their teacher was included. Osvaldo showed me his latest propellant loading approach that minimizes external powder contamination on the person loading. Using zinc-sulfur is simple, but it has it’s own problems. Many of our spouses and friends are not pleased with the persistent odor of brimstone (raw sulfur) on our clothes upon our return to the city. Osvaldo has known this problem for years and found a simple method of blocking the migrating propellant dust using a simple pillowcase shield. He has also improved the mating funnel and with a steady light bouncing of the propellant tube on a wood block, the propellant tube can be filled with its 3.2 pounds of zinc-sulfur mixture.

Our alpha launch operations were conducted a little differently at this event. Osvaldo did the loading at the rails, while I was manning the launch switch in our observation bunker with everyone else safely under cover. By California law, the person on the launch switch is the pyro-op in charge. With our experienced team doing road and air space checks before each firing, we had a good safe launch and a lot of fun.

Dave Nordling in the bunker waiting for the first alpha to be loaded. Note that nothing is connected until all is loaded and ready.
Osvaldo Tarditti loads an alpha into the rails in preparation for launch.

We had ten alpha rockets plus one extra painted by the teacher for this event. All of them looked really sharp with bright colors easy to spot when recovered from the desert floor. 99th Street Elementary really enjoyed the five weekly classes and were very exciting to have the last class at the Mojave Test Area to see real demonstrations of rocket propellants and the micrograin powder in each of the rockets propelling them into the gray sky one by one.

Ten plus one alphas from 99th Street Elementary loaded and in wait for their time on the launch pad.

Most of the alpha flights were perfect. The flight times were consistent and given the low winds we could hear the whooshing return and the thump on nearly every one to confirm impact.

A nice clean launch of an RRS alpha at the 12-07-2019 event.

We had one particularly troublesome flight which is a rarity with the RRS standard alpha after all of the years spent perfecting that design. The second rocket sputtered and hesitated a lot before taking off slowly from and rails and flopping back to the ground. No obvious cause was found on that rocket, no unusual burn pattern or melting and the propellant tube seemed intact. After inspecting the rocket more thoroughly upon its recovery just a few feet from the launch rail, it was clear that the nozzle mounting screws must not have been installed. No damage was seen to either the propellant tube or the nozzle. The nozzle throat was in tact which indicates it must not have been present to choke the fiery exhaust flow. This also explains the profound lack of thrust, but yet even without a nozzle the micrograin rocket was able to generate enough pressure to lift itself out of the rails. The nozzles often fit very tightly into the propellant tubes which might have been how someone could have failed to notice the missing attachment screws during transport to the launch pad. This is quite an error which will not be repeated.

Anomalous launch of an alpha at the 12-07-2019 event.

We said goodbye to our visitors and prepared to clean up the site. In the winter months, the sun sets quickly so we didn’t have a lot of time to search for the alphas. Frank had a lot of luck finding six of the eleven launched that day. Some of the parts can be reused with a little work.

The Tarditti rocket extractor tool, don’t go downrange without one.
An alpha rocket buried up to its fins in the desert floor.

We’ll surely discuss the results of the launch event at the next RRS monthly meeting which is next Friday, December 13th. Also, we’re already planning the next MTA launch event which will happen in January. We are expecting more launches in this next year, 2020. Thanks for reading!


November 2019 meeting

by Dave Nordling, Secretary, Reaction Research Society


The Reaction Research Society (RRS) held it’s monthly meeting on November 8, 2019 at the Ken Nakaoka Community Center in Gardena, California. The society had a full agenda plus our annual nominations for the executive council. Frank Miuccio attempted to establish a teleconference at the meeting to connect our director of research, Richard Garcia, and an outside organization that wanted to address the society. This teleconferencing was successful and the society will consider having more of these to help bring in more participants on special topics.

[1] Treasurer’s report on membership and dues status

The RRS treasurer is conducting a review of our membership roster to not only update our records with the many new members that have joined us this year, but also to determine the dues status for each. Like in all non-profit organizations, regular annual dues payment is essential to keeping the society funded for the many projects we do and are planning. Upgrades at the MTA are also impacted if our membership does not keep their dues payments current.

Chris’s report was not ready at this month’s meeting, but he will be soon notifying some of our delinquent members that they need to keep their dues paid to remain in active status. It is the duty of all RRS members to keep their contact information current with the RRS treasurer. The society can not be responsible for missing communications if our members do not do their part by making communication possible. Also, members who are not current in their dues payment risk losing their active status with the society.

treasurer@rrs.org

I have always paid my dues to the society on January 1st of each new year. This greatly simplifies the process and I need no reminder to do so. Membership dues ($40 USD per year) to the society can be paid through the “Donate” button on the RRS.ORG website which links to Paypal.

We remind all of our donors and those paying dues in this manner to include your name in the “Notes” section along with the purpose of your donation. Without including your name, the RRS can not tell who has paid their dues.

The RRS.ORG website has more information on this subject. For any questions, please contact the RRS treasurer.

[2] Update on the next RRS MTA launch event with LAPD CSP and 99th Street Elementary School

Frank, Larry and Osvaldo are in the middle of another class, this time with 99th Street Elementary in partnership with the Los Angeles Police Department (LAPD) Community Safety Partnership (CSP). The class is going well and the final launch event is still planned for Saturday, December 7, 2019.

At this same launch event, we are also planning to host the University of Southern California’s (USC) Rocket Propulsion Laboratory (RPL) with the launch of their latest solid motor powered rocket. USC has been making continuing progress even after their landmark flight to be the first university-built rocket to break the von Karman line into space.

[3] Preparations for the 2020 RRS symposium

With the society approving the symposium for our fourth year in a row, Frank is working with the Ken Nakaoka Community Center to establish the date. Tentatively, the 2020 RRS symposium will be held Saturday, March 28, 2020. The society has decided to try to hold the symposium earlier in the year to avoid the onset of the summer heat which makes the event very uncomfortable in the absence of climate control at the Ken Nakaoka Community Center.

Future site of the 2020 RRS symposium

More information on this subject will be posted as it develops. Our symposium coordinator for the 2020 event will again be our society vice president, Frank Miuccio.

vicepresident@rrs.org

[4] RRS solid propellant making classes at the MTA

The RRS has been approached by an outside organization about conducting solid propellant motor making classes. Many years ago, the RRS held a few of these events which became very popular. The RRS has not yet decided if we will restart these classes, but a group is examining the possibility and will report back to the society on the viability of such a project.

composite grain, before and after

[5] 2020 Constitutional Committee progress report

pending… carried over from October 2019 meeting report

[6] Annual elections for the RRS executive council

As required by our Constitution, the RRS appoints an election chairman to oversee and execute the process of nominations and balloting for each of the four executive council offices for new terms starting in the new calendar year. Larry Hoffing, again, agreed to be our election chairman for this cycle.

Nominations were held and were open to our administrative membership. Nominations were received and our election chairman will be sending out ballots by email. This is another good example of why all members should keep their contact information current and remain in active status with the society. Balloting will be closed prior to the next monthly meeting in December and the results announced at that meeting.

[7] CSFM committee on amateur rocketry

Last month, the RRS and Mark Holthaus of the Friends of Amateur Rocketry (FAR) met to discuss a list of proposed changes to the California State Fire Marshal’s (CSFM) definitions that govern amateur rocketry. This small group was intended to be made from active amateur rocketry groups around California to help advise the CSFM subcommittee on changes that would help improve regulation of amateur rocketry and make needed clarifications to help all groups continue to operate safely and legally.

from left to right, Mark Holthaus (Treasurer of FAR), Osvaldo Tarditti (RRS president), Larry Hoffing (RRS events coordinator), Dave Nordling (RRS secretary) meet to discuss proposed definition changes to CSFM laws governing amateur rocketry, 10/15/2019

The RRS and FAR held a second meeting at the Ken Nakaoka Community Center which included David Reese of the Rocketry Organization of California (ROC). ROC members, Chris Kobel and David Reese have been very helpful in providing helpful improvements to how the certain classes of rocketry are defined.

This amateur rocketry committee will be presenting their collective suggestions to the Fire Marshal in early December 2019. The RRS, FAR, ROC and the rest of the amateur rocketry groups in California are glad to assist the CSFM office in making these suggested updates.

[8] Social media updates

There was no report from Alastair Martin and/or Bill Janczewski this month for social media improvements for the Reaction Research Society. We hope to have more to discuss in the next month on this regular topic. As always, members are welcome to offer their advice and proposals to either or both of our media coordinators.

Alastair and I did have a conversation about expanding our following on Instagram. We will continue to show the highlights of our events and the people involved, but I hope to bring more technical content which seems to be our primary source of interest.

See the RRS on Instagram: reactionresearchsociety

Alastair and his production company, Production Tribe LLC, has created yet another podcast in the “Before SpaceX” series with special guest, rocket propulsion expert, author and RRS member, James R. “Jim” French. RRS secretary, Dave Nordling, and RRS director of research, Richard Garcia, supported this excellent discussion about the American Rocket Company (AMROC), a space start-up company in the 1980’s and 1990’s. The show is still in editing and will be posted very soon his website.

https://podcasts.apple.com/us/podcast/rocket-talk-radio/id1474556513

[9] Compton Comet STEM club formation and program

Several students from the Compton College STEM club attended the November meeting of the RRS along with their advisor and fellow RRS member, Kent Schwitkis. Jamie Alvarez, the STEM club president was in attendance. The Compton Comet is the project name for the liquid rocket projects that the Compton College team is working on. There are about 20 students in the group and the RRS is glad to support this team and the other university teams looking to compete or at least expand their range of practical skills.

The Compton Comet team has been holding meetings at Tomorrow’s Aeronautical Museum (TAM) at the Compton/Woodley airport. They are planning a few trips to inspect launch and additional hardware assembly sites and make a report back to the RRS at the December 2019 meeting. RRS member, Waldo Stakes, has also been an important part of this program.

The STEM club is having another Estes rocket competition later this month. The first of these events was very successful. Part of the experience is getting practice with the simpler rockets and using OpenRocket simulation software to make and verify predictions.

IN CLOSING

RRS members, Frank Miuccio, Alastair Martin and Kent Schwitkis contributed to this report. The next RRS meeting will be December 13, 2019. If there are any corrections or additions to make for the monthly report, please contact the RRS secretary.

secretary@rrs.org