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1. Is the USLI payload considered a “complex rocket” for NFPA required launch stand-off distance requirements? No. A “complex rocket” per NFPA pertains to the boost phase of the airframe where multiple rocket motor firings occur. That said, additional distance between the launch site and...

AeroTech O6000W Test Results AeroTech O6000W Single Use Composite Propellant Mass: 22,000 grams Dimensions: 152 mm x 1120 mm Delay: Plugged-No Tracking Smoke Total Impulse: 39,620 Newton seconds Peak Thrust: 9,564 Newtons Burn Time: 6.77 seconds Average Thrust: 5,853 Newtons Test documents and...

Voting opens May 1, 2023 and closes July 29, 2023. Just looked over the bios and Jasper Barnett is a welcome addition addition to the slate of candidates. NAR can really use some younger fliers in leadership position to prepare for the future.

Just wondering is someone has the file to print airfoil shaped Nike Smoke fins for Estes kit #7247 with tabs for TTW mounting to the 18mm MMT. I don't have a printer, but a friend of mine will print them for me. Thanks! John

I'm looking for something like this that could be used in a 2.6" fiberglass airframe: Anyone know were something like this could be located? Thanks! John

https://www.vice.com/en/article/qjkzmw/how-and-why-the-fbi-mysteriously-shut-down-a-federal-solar-observatory Having attended NSL the two recent times is was held in Alamogordo, I had the opportunity to tour the observatory a couple times. The area is beautiful and the vistas breathtaking. All...

Just thought that this was interesting to watch:

Looking over the Google Earth data from my area, I spotted an unusual artifact in the picture and when I zoomed in I found this...

11M : Terror In Madrid I watched this movie the other night and wanted to recommend it to others, as I think it represents my assessment of the current state of US political discourse and journalism. In order to understand why I think this, one needs to watch the production in its entirety, as...

The current certification of the A3-4T has been expanded to include the -2T and -6T variants following successful testing by NAR S&T. Personally, I can't wait to purchase and fly some A3-6T in some of my airframes that needed more than a 4 second delay. John Lyngdal NAR Standards & Testing

Total Impulse: 3886 Newton-seconds (σ 121) Peak Thrust: 2585 Newtons (σ 37.2) Burn Time: 1.82 seconds (σ 0.05) Average Thrust: 2129 Newtons (σ 17.7) Propellant Mass: 1680 grams...

The local college group is flying the 3" BMS school rocket with H195T DMS motors with delay adjusted for 10-11 seconds for their L1 HPR certifications. Needless to say the rocket really scoots with this motor, but they have located a smaller local field that they can fly on and I was thinking...

I just stumbled on to this today, even though it was posted in March of 2020 and has nearly 8 million views. I thoroughly enjoyed his analysis

I have a model ready to fly that will accept a motor longer than recommended E30-4T 24mm motor. I've heard that it the model flies low and slow on the E30, so I'm looking into other motor options with a slightly higher total impulse. The low length to diameter ratio adds challenges to the...

Her inspiration and dedication supporting the disadvantaged students at Presidio High school and using TARC to show them oppertunities that at the moment they couldn't imagine, is a lesson we all can learn from. Shella is one of my "heroes" for this and many more reasons. After winning...

Just wanted to let others know that another fake fundraiser has surfaced yet again. John ********************** From: John Hochheimer [mailto:[email protected]] Sent: Monday, June 7, 2021 08:46 AM To: [email protected]; [email protected] Subject: National Association of Rocketry...

Ratchet straps are ubiquitous at rocket launches, from keeping your pop-up canopies from blowing away during a dust devil to securing your gear on the drive to the launch site. I came across this testing video that evaluates conditions that could decrease the strength of straps in normal use...

I watched this last night and thought it was a wonderful story. No rockets involved, but a good robotics story and the influence of dedicated teachers. https://watch.opb.org/video/big-dreams-in-umatilla-prhp83/

Has anyone researched and identified solid, well managed STEM education charities that provide grants to teachers and students to promote aerospace and mechanical engineering programs? Under served, non-typical, and financially challenged directed programs would rank higher if their efficacy...

Bulletin - Pro29 3G Mellow Pellet Issue - October 8, 2020 For Immediate Release - October 8, 2020 - Gormley, Ontario Bulletin - Pro29 3G Mellow Pellet Issue - Please see the bulletin linked below Pro29 3G Mellow Pellet Issue Pro29 3G Mellow Pellet Modification Instructions I had a one of...