Tag Archives: restroom facility

MTA work event, 2023-03-03

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Dimitri Timohovich, RRS.ORG

Last weekend saw a big dent put into the bathroom project. On Friday, 3/3/23, I was able to install the 2 remaining pass-throughs, one for the water to enter the container and one to serve as part of the shower drainage.

Clean cut window and a look from the inside
Supply header pass-through in place.

I was able to also attach the main drainage line to the outside drainage line and set up to connect the shower drainage to the main line.

Saturday, 3/4/23, started out with nice weather and I was able to connect the water line from the pass through and run it to the pump area.  More PEX lines were run and a manifold was made for a bypass incase of pump failure.  Final attachments will need to be made.

Dave showed up just in time for the wind to pick up.  Meanwhile, I started to tie in the electrical and build a small control box with a main switch and voltmeter.  Unfortunately, Dave couldn’t stay long and after lunch I went back to more electrical work.  Meanwhile, the weather kept getting worse.  

Sunday, 3/5/23, was cold, very windy, and with scattered showers, so I packed up early and headed back to town.

Next event is coming soon. Progress and next steps to be discussed at the March 10th monthly meeting.

New plumbing feedthroughs
Voltmeter installed for checking battery health.

We are getting close to having the restroom become operational. We hope the weather continues to be favorable.

MTA launch event, 2022-12-17

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by Dave Nordling, President, RRS.ORG

The RRS held our last launch event of 2022 on Saturday, December 17th. Wolfram Blume brought out the next build of the Gas Guzzler two-stage rocket. I was the pyro-op in charge and RRS member Joe Dominguez was my apprentice.

It was a flight test of Wolfram’s third rebuild of this complex system. The ramjet upper stage was empty for this flight test to demonstrate the rebuilt design would work well enough before proceeding with a fueled flight test of the ramjet.

Wolfram explains the stages and the integration
The Gas Guzzler is loaded and ready for flight.

The integration of the stages and mounting on the 1515 launch rail worked perfectly. The booster with an L-motor powered the vehicle on a stable trajectory under nearly zero wind conditions. Stage separation was clean and the drogue chute was seen deployed.

Booster stuck in the sand with the front end crushed.

The booster recovery failed to deploy and the main chute on the ramjet also failed. Both stages were lost but recovered less than 100 yards from the launch rail. The drogue chute was ripped clean and found downrange.

Wolfram has spare parts already made, but another launch may require at least another month before a new vehicle is ready. He must also study the wreckage and flight data to find the problems and how best to correct them.

Old anchors extracted by primitive but effective means
Patched holes finished.

The event was also used to fix the new horizontal mounting points. Four of the new 3/4-10 female anchors in the regular 7-by-4 pattern put in by USC RPL this year had problems. Two holes were blocked by old anchors so we spent the afternoon chipping them out. With a quart-sized plastic bucket and some small bits of gravel, the holes were patched with fresh concrete and left to cure until the next event in a month or so. The other two holes will be worked at the next event.

The event also continued the work on the restroom facility. The plumbing, pumps and electrical systems need work. The project will continue into January until its completion.

With the last hour of daylight, we started the stick welding of the missing mounting plate. Joe used the portable welding generator to get the plate in place, but multiple passes would be required to finish. We ran out of daylight before completing the job.

MTA work event, 2022-12-04

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by Dave Nordling, President, RRS.ORG

The RRS spent some more time working on the restroom facility at the Mojave Test Area. This project will bring a much desired convenience to our me,bers and future guests. It was a continuation of prior work which completed the installation of the fixtures and began the shower stall and internal plumbing.

The restroom facility under construction by our membership.
sink, urinal and toilet in each of two rooms

The new firehouse container was placed on the adjacent concrete pads creating a small space in-between which will be for a safety shower in subsequent work next year.

Shower stall in the making
Space between the restroom and firehouse containers to be used as a safety shower area

Stainless steel threaded plugs were bought, lubricated and installed into the available 3/4-10 female anchors in the pad. This will better preserve the threads and minimize the sand collected in the holes. It is important that users of our pad clean out the holes and reinstall the plugs after each use.

socket head screws to serve as a thread protector and sand barrier
The 3/4-10 female anchor pattern, seven by four, 12inch pitch on width, 24-inches on length
Former president, Osvaldo Tarditti, cuts a bit of wood to finish a support.

The society is grateful to Osvaldo and Dimitri Timohovich for their continued support and labor on this project. We will have another work event on December 17-18, 2022 to finish the supply plumbing and begin the outlet plumbing. Our goal to finish the restroom by year’s end has a slim chance of success but we will continue through the winter months until it is operational.

At the next work event, members are welcome to join us and launch any rpckets they have. Pyro-ops are already present. Contact the RRS president if you’d like to use the Mojave Test Area on what will likely be the last event of the year.