January 2018 meeting

The RRS met for its monthly meeting, Friday, January 12, 2018, at the Ken Nakaoka Community Center in Gardena. We got a late start (8:04pm), but we covered a lot of ground.

Anniversary issue of the Astro-Jet is now available for purchase ($10/copy)

Everyone is reminded that the anniversary issue of the ASTRO-JET newsletter of the RRS is now available for $10 a copy. This special issue will be available in print only and proceeds go to benefit the society and our upcoming symposium event. Bill Janczewski and I have worked hard to bring this milestone issue together and we will have them ready for printing and distribution next week. To order, you can contact me by email (secretary@rrs.org) and send me your mailing address. Payment can be made by check to the “Reaction Research Society” sent to our P.O. Box 90933, in Los Angeles, CA, 90009-0933, found on our website.

Payment to the RRS for the ASTRO-JET newsletters can also be made by clicking our “DONATE” button on the website which directly links to our Paypal site. Please note your are paying for the ASTRO-JET and the number of copies.

Frank brought one of George Dosa’s liquid rocket chambers to the meeting for inspection by the society. This single element coaxial injector has not been fired, but George had this made several decades ago. There was talk about what modifications could be made to get this article into hot fire.

George Dosa’s coaxial injector and chamber

Richard Garcia also brought his own liquid rocket chamber as part of the on-going RRS standard liquid rocket project he has been championing.

Richard Garcia’s pintle injector and chamber design

After the usual reading of the treasury report, we began to discuss the agenda topics. The meeting began with announcing our new members who have recently joined us: Michael Lunny, Bryan Calungcagin, Nancy Squires, Barsoum Kasparian and Jack Oswald. The RRS is glad to welcome our new members.

The discussion had turned to membership cards. Bill Janczewski has worked up a new card design and Frank was working with Bill on a few changes. The RRS does not issue membership cards except on an on-demand basis. RRS member, Alastair Martin who runs a printing business had several ideas for different types of card stocks and discussed them with the RRS.

Larry Hoffing had asked about getting a short run of business cards to support his role as the RRS events coordinator. Frank had said he has the resources to get these made.

Our discussion then turned to the upcoming RRS symposium to be held Saturday, April 14, 2018. We will try a new format of having our speakers present in the ballroom among our exhibitors. The collared white shirts we gave to our membership running the event was a good idea. We discussed getting these again with iron-on or screen-printed RRS logos to help identify those of us who will be running the event. Frank wanted to have posters showing a decade-by-decade look of the RRS over our 75 year history. This is a great idea and we’ll be working hard to collect old photos to have them on display at the symposium. Easels and other supporting equipment were in short supply as the brick walls of the Ken Nakaoka Community Center made wall-mounting very difficult.

For next meeting, we will discuss more of the details of the symposium including working on our list of presenters and exhibitors. Frank and I have already began to approach some of our prior speakers and exhibitors. We have already confirmed several from industry, government and academia including the LAPD CSP program and the Aerospace Corporation. We expect this year’s symposium to be even greater than last year’s event where we hosted over 200 people.

For the next agenda item, Frank and Larry will begin our next educational event with the students of Florence Joyner Elementary school in conjunction with the LAPD CSP program. This 5-week event will begin sometime in February with an expected launch event in late March. Alastair had indicated he’d like to participate, film and document this event. An update on this event will be given at the next month’s meeting.

Michael had indicated his interest in running an RRS educational event with his old high school, Redondo Union High School. Larry and Frank had offered to help him figure out how best to set this up based on the experience the RRS has had thus far. I had sent him the PowerPoint file I had made which can serve as the basis for the program he can give to an older group of students. This would be the first of several events that Michael and Bryan would like to hold on behalf of the RRS.

Our next agenda topic discussed establishing an account with the regional liquefied natural gas (LNG) supplier, Clean Energy in Boron, California. Richard Garcia has acquired a methane dewar which will be used for liquid rocketry experiments at the MTA. Richard was able to have one of our contacts at the Friends of Amateur Rocketry (F.A.R.) group modify the dewar such that it is ready for use. Our president, Osvaldo, said he would contact Clean Energy and give them the necessary information for the RRS to begin buying quantities of methane.

The next agenda topic was the quarterly briefing of the SuperDosa project. Osvaldo and I have identified chemical suppliers to produce the RRS standard solid propellant mixture recipe. We will meet offline to discuss prices and what is the best approach to proceed. Richard was going to work out some more simulations of our proposed vehicle to get an idea for sizing. The ballistic evaluation motor (BEM) that I designed is still in work. This is an important piece of hardware to characterize the burn rate of our propellant to help finalize and set the grain design. I hope to complete the assembly before the symposium which would also be the next quarterly reporting date (April 13, 2018).

The last agenda item was to discuss how to formalize the proposal process for RRS projects that we would like to seek funding from outside groups. One of the most important things to getting projects funded is to have a clear plan on what the scope of the project is, what purposes it will serve, what exact materials and quantities will be required and what the expected cost of this project will be using real quotes and defensible estimates. The RRS was in agreement and the executive council will meet later to discuss some of these documented proposals I have assembled. Projects include things like making more alphas and beta rockets, 3D printer for RRS use, spare electric generator for the MTA, getting a new launch rail built as backup, obtaining a liquid oxygen dewar…. etc.

The night ran late and our meeting concluded at 9:10pm.

There’s a lot of preparation that must be done in advance of our 75th anniversary symposium on Saturday, April 14th, so we’ll be putting this recurring item on the agenda for next month’s meeting.

For next month’s meeting, Frank will finish his paper rocket air launcher device that he has been making. This was inspired by the last educational event with Grape Street Elementary where the students visited the Space and Missile Command Center at Los Angeles Air Force Base in El Segundo, CA. With luck, we hope to demonstrate it outside the community center and take some video for our YouTube channel.

YouTube – Reaction Research Society

Also, for next month’s meeting, I had promised Frank and Osvaldo that I would bring in my alpha parachute assembly that I have worked into a PVC payload tube. I have resolved some of the issues with my timer circuit, but I am still looking for access to a 3D printer to produce my internal umbilical switch mount.

As always, if there is anything here I have missed or misstated, please let me know. Our next monthly meeting will be held, Friday, February 9, 2018. Hope to see you there.

secretary@rrs.org

75th anniversary for the RRS (1943-2018)

It was on January 6, 1943, in Glendale, California, that our founder, George James started an amateur rocketry group that would become the Reaction Research Society. It is with great pleasure that we officially announce our 75th anniversary on this day, January 6, 2018.

The RRS turns 75 today.

As much as the world has changed in that time, our commitment to our core principles of learning, careful experimentation and sharing knowledge have not. It is with great pride that we celebrate this milestone year that few organizations have rivaled and that we today, more than ever, will remain vital in our Los Angeles community. We are most thankful to all of our former, past and current members for making our society possible over three quarters of a century.

The RRS is pleased to announce that a 75th anniversary issue of the Astro-Jet newsletter will be available for orders starting today. This is the same newsletter that George James issued quarterly and we are proud to mark this occasion with the Astro-Jet that many have loved over the years. The 75th anniversary Astro-Jet newsletter will be in print only and will not be posted online. Although this will be single issue, it will contain articles from many of our current and past members and including our founder, George James.

To those wanting to buy a copy, please contact the RRS secretary and provide your mailing address. We will, of course, not share your information outside of the society. Copies will (hopefully) be sent out this month. You can also use our “Donate” button (connected to Paypal) on the RRS.ORG website to buy your copies. Just be sure to make a specific note of “Astro-Jet” and how many copies you’re buying.

secretary@rrs.org

This special issue will be available in print only for a copy price of $10. This is fairly close to the same price of the Astro-Jet adjusted for inflation back in 1946. The proceeds will go to fund the many activities of the RRS including our upcoming 75th anniversary symposium on Saturday, April 14, 2018.

The start of this new year is also a good time to remind our current membership or those desiring to restart their membership that annual dues are $40 for members and $20 for student members. You can also use the RRS.ORG website’s “Donate” button (connected to Paypal) to pay your RRS dues, but please make a note of your name and that you are paying your “annual dues”.

Our next monthly meeting will be on Friday, January 12, 2018, at the Ken Nakaoka Community Center in Gardena, California. As always, we invite members current and past to join us. We also welcome newcomers who would like to learn more.

MTA launch event, 2017-07-22

The RRS hosted a launch event on Saturday, July 22, 2017, with the students of Jordan Downs, sponsored by the Los Angeles Police Department’s (LAPD) Community Safety Program (CSP) at our Mojave Test Area (MTA). This launch event was the final part of the educational program put on by the RRS. The event was very successful as we fired 10 student alpha rockets and one more alpha from LAPD.

RRS sign at the MTA entrance

It was a typically hot day (105 F / 41 C) for late July at our private test site the Mojave Desert, but everyone was well prepared. Some even brought umbrellas which was a great idea to stay out of the sun’s rays. The misting fan we bought from Home Depot seemed to work well in the observation bunker. Home Depot was also very kind to donate water misting bottles for this event which helped tremendously in keeping people cool. RRS treasurer, Chris Lujan, was also very well prepared for the event as he saved me with a cold water bottle just after launch. Looking after each other is what we do.

RRS VP Frank Miuccio talks with students from Jordan Downs

Larry addresses the Jordan Downs students at the MTA

Our pyro-op in charge was Dave Crisalli and he gave our safety briefing before we got started. The students were well prepared and seemed to get a lot from it. New RRS member, Alistair Martin was nice enough to film some of the briefing.

Alistair films the burn demonstration

We also gave a propellant burn demonstration after the safety briefing to give everyone an appreciation for the power of the chemicals commonly used in amateur and professional rocketry. I have a still of the sample composite grain below. I took a video of the composite burn and will have it posted on our YouTube channel very soon.

sample composite grain sitting in the cage

Larry and Osvaldo had already loaded the rockets the night before so we could get the event started as quickly as possible. The rockets were safely stored in our old blockhouse ready to go.

Each of the students had painted their rocket with a unique pattern and color scheme to better help identify them later. The photo below is from just after the build event.

Jordan Downs alpha rockets painted and ready

Dave allowed me to assist on the pyro-op duties including rail loading and connecting for firing. As promised, we worked quickly to call out each one as they were loaded in the rails. Dave and I worked very efficiently to get each one off swiftly and safely.

The LAPD rocket was the 11th one in the series. It had a few special features including a smoke tracer in the payload section and a tail-fin mounted camera.

LAPD’s alpha rocket

LAPD payload with red smoke tracker inside

LAPD’s alpha rocket, tail fin camera

The LAPD rocket was able to be recovered shortly after launch thanks to the smoke tracker. The nose cone wasn’t able to be recovered but the camera on the tail fin remained in tact. We have had good luck with one of these keychain cameras in the past. Although the camera imparts a spin on the rocket, the flight is very stable. Once the footage is downloaded, and depending on the quality, the RRS will post it on our YouTube channel. It should be a lot of fun to see (fingers crossed).

YouTube – RRS channel

The specific brand of smoke tracker used was “Enola Gaye”. Given the success of the flight, the RRS should certainly use more of this product in the future. There has been some discussion to increase the number of holes in the payload section to allow more of the smoke product to escape throughout the flight.

Dave Crisalli with the recovered LAPD rocket

Due to the summer heat, the students of Jordan Downs didn’t go downrange to search for their rockets after the launching was over. However, Frank was able to locate and recover (dig up) one from the event.

Frank in the Dosa Bldg. just before going out to search for rockets

The RRS thanks LAPD officers Acuna, Plascencia and Terrazas

The RRS is grateful to all of the parents and adults who supported the event with us. Also, the RRS is grateful to LAPD officers, Acuna, Plascencia and Terrazas, for their help in making this event a big success.

Osvaldo receives Cert of Recognition

University of Southern California (USC) and RRS president, Osvaldo Tarditti, were glad to receive a certificate of recognition from L.A. City Councilman, Joe Buscaino of the 15th district for putting on this event with the students of Jordan Downs in Watts. It is with gratitude that the RRS accepts the certificate and we hope to work again with the students of Jordan Downs and other groups in the city.

As for my own rocket which would have been the 12th alpha launched, an electrical problem with the timer forced me to pass on launch. Although each part of the circuit seemed to work individually when I tested them the night before, the fully integrated system failed the demonstration at the site. Working with Richard and with some more time, I can resolve the issue, improve the design a little, and fly the parachute system in the alpha at the next launch event.

Dave’s alpha parachute deployment system, still in work

UCLA was also at the MTA to continue their work on their liquid rocket project. UCLA proceeded after the Jordan Downs launch, but had an electrical problem which prevented their scheduled cold flow testing. UCLA hopes to reset their efforts and be back at the MTA for more testing in late August.

Chris, Richard and I discussed making some rocket candy (sugar/KNO3) at the MTA loading area, but it seemed that there wasn’t enough time to get things started. With most of the resources already on hand, we’ll wait for the next event for Chris to cook a small batch of this classic amateur rocketry compound for demonstration purposes.

If any one has any pictures or video of the event that they’d like to share on the RRS website. Please send them to me at secretary@rrs.org
Or comment to this posting below.

For more information on the RRS educational programs, please contact us at:
events@rrs.org

Also, if I have missed or misstated anything, please let me know. Our next monthly meeting will be August 11th at the Ken Nakaoka Community Center in Gardena, CA.
secretary@rrs.org