December 2022 meeting

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by Dave Nordling, President, RRS.ORG

The RRS held it’s last meeting of 2022 on December 9th at the front office of the Compton/Woodley Airport. After some consideration, the society voted to make this site our permanent meeting location. Our teleconference feature will also remain which has helped us through the pandemic and connect our members living or traveling far away.

The newly elected officers for next year, 2023, were announced:

Dave Nordling, President

Frank Miuccio, Vice President

Joel Cool-Panama, Secretary

Larry Hoffing, Treasurer

The society thanks Keith Yoerg for his two years of service as our secretary. We welcome Joel Cool-Panama as our new secretary starting January 1, 2023.

The society also would like to thank Drew Cortopassi for serving as our election chairman this year.

The Dosa Building, new firehouse and the restroom facilities.

Past events were reviewed including the USC RPL static fire and the work event on December 4th. Reports on these events have been posted.

Jay Miller (left) of Welding Services Inc. explains the naming convention for welding rods to RRS member, Mohammed Daya (with helmet). His son, Abdullah, new member to the society stands behind him.

The welding class in Vista was also a big success as we learned GMAW, MIG and TIG types of welding.. The society has agreed to buy a pair of better welding helmets.

We had two people join the society as associate members, Michael Rouleau and Abdullah Daya. We welcome them to the society.

Future events including a launch event on December 17th were discussed. An event on January 14th is in discussion as we may have a visitor that Saturday. Restroom construction will likely continue into January.

The executive council is working to complete the final draft of the Constitution. Many improvements have been made and it will be going out to the voting membership before year’s end for a 2/3rd’s ratification vote. Drew Cortopassi agreed to be our election chairman for this special vote. Voting will close in 45 days after submission to the voting membership which will be late January to early February 2023. Results to be announced at the February 10, 2023, meeting.

The new website for the RRS is still in work. Frank Miuccio continues to work with our webmaster. No date for its launch yet.

Our 80th anniversary as a society is on January 6th, 2023. We hope to formally announce our next symposium at the next meeting.

Next meeting will be January 13th, 2023, at the front office of the Compton/Woodley Airport.

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.

MTA Firing Event, 2022-11-12

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by Jim Gross, Reaction Research Society

The RRS hosted the University of Southern California (USC) Rocket Propulsion Laboratory (RPL) from Friday, 11/11, to Sunday, 11/13/2022 for a static firing of their latest experimental class, solid propellant motor design, Firebiter. I was the pyrotechnic operator in charge with Keith Yoerg and Michael Rouleau apprenticing.

USC firing campaign logos keep getting better and better

Back in September, USC completed a series of test grain burns which gave valuable regression factors necessary for their full 6-inch scale solid motor.

Borrowing from painful past experiences, USC RPL under their team leader, Julia Woomer, found a good compromise between stability and performance as evidenced by their hotfire on Sunday just three minutes before noon.

USC RPL demonstrated a good motor at the RRS Mojave Test Area

The RRS has had a long successful relationship with USC for over a decade. USC will prepare another full-scale motor for flight soon.