[NRVR-Members] HPR glossary and useful safety & other docs

Weeks, Thomas t.weeks at vt.edu
Mon Oct 22 09:07:06 CDT 2018

On 10/22/2018 12:53 AM, Jim Stoll wrote:

PS - what is the obsession w/ Hybrid rocket motor questions? Over 10% of the technical question pool is about hybrid rocket motors, yet I can't find any hybrid motors for sale anywhere...???

Yeah.. back when the ATFE was trying to regulate HP/APC motors, a lot of people were looking into transitioning from APC to hybrid to preserve the hobby.  However, the cost and complexity of HPC, and then eventual winning of the case with the ATFE brought a solid resurgence to the APC side fo the hobby, and Hybrid has since become less popular.  It's still interesting stuff I think most certified fliers should at least know of.. but if you ask Bob, I bet and answer to YOUR question is just that the TRA has not updated the cert questions in a while. I know the last time I took it there were some out of date/incorrectly worded questions still in the pool.



On Monday, October 22, 2018, 12:10:04 AM EDT, Thomas Tweeks Weeks <tom at theweeks.org><mailto:tom at theweeks.org> wrote:

Thanks for bringing up these two great references Adrien.. I too would recommend them to anyone wanting to go a bit deeper into the hobby.

I've got both books.. and each is very different in how to covers HPR, but still good books to check out.

The  Modern High Power Rocketry 2<https://smile.amazon.com/Modern-High-Power-Rocketry-Mark-Canepa/dp/1412058104/> book is awesome. It's old but contains a widely sourced plethora of best practices, tricks & tips, and wisdom harvested from many HPR communities and experts.  It's a lot of info.. and is a little haphazard in its layout and flow, but still recommended as a great off-line resource and I still keep it by my build workbench.

I was glad to see Make: High Power Rockets<https://smile.amazon.com/Make-High-Power-Construction-Certification-Thousands/dp/1457182971/> recently come on the scene as a newer publication. I like this book as it's a cleaner, simple read and more about a single person's journey fom the world of low power model rockets into HPR and certification than as much of a desktop reference like MHPR2.  The author does scratch the surface of altimeters, pyrogens, recovery system design, and several other important HPR topics.. but it's just not nearly as deep as MHPR2 gets.

Recommend checking out both, if you can. Maybe I'll bring them in to our next meeting if we get some time in December.


On Sunday, October 21, 2018 12:00pm, "Adrien Drouault" <adrien.drouault at gmail.com><mailto:adrien.drouault at gmail.com> said:

If you like books, I would recommend Modern High Power Rocketry 2<https://smile.amazon.com/Modern-High-Power-Rocketry-Mark-Canepa/dp/1412058104/> (now 13 years old... Also, the formatting of the Nook version is kind of messed up), and Make: High Power Rockets<https://smile.amazon.com/Make-High-Power-Construction-Certification-Thousands/dp/1457182971/> (published late last year; I haven't noticed any formatting issues in the Kindle version).

On Sun, Oct 21, 2018 at 11:05 AM tweeks at theweeks.org<mailto:tweeks at theweeks.org> <tweeks-imap at theweeks.org<mailto:tweeks-imap at theweeks.org>> wrote:

Was just thinking, with our newer HP members and students might find these HP documents useful:

Rocketry Glossary - http://www.rocketmime.com/space/glossary.html

TRA Safety "SLP" Card - http://server2.nrvr.org/files/2017_SLP-card.pdf

TRA HP Safety Code - http://server2.nrvr.org/files/2017_HighPowerSafetyCode.pdf

Getting Started w/High Power - http://nrvr.org/what-is-high-power-rocketry/

Just off the top of my head..

Anyone else have anything useful to share for newer folks/students?


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