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  #1  
Old 04-11-2014, 03:07 AM
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blackshire blackshire is offline
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Location: Fairbanks, Alaska
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Default New motors R & D help?

Hello All,

I am posting the following for anyone who would like to help develop a new series of jet motors and long-burn, low-thrust model rocket motors:

Dr. Edward Jones (e-mail: rocketscienceinstitute@gmail.com - I've included his postal address below) is the founder of the Jet-Ex-Press Jetex/Rapier discussion forum on Yahoo.com (see: https://groups.yahoo.com/neo/groups/Jet-Ex-Press/info ). He is a retired propellant chemist from Aerojet General, and he was on the team that developed the solid propellants that were/are used in various stages of the Polaris, Minuteman, and Trident ballistic missiles, as well as in the Genie air-to-air rocket and many others. He also worked on the long-burning (9 minutes!) solid motor that powered the AQM-38 target drone--this guanadine nitrate motor was, literally, the largest and longest-burning Jetex motor ever made--and it was even reusable (just like the English Jetex model jet motors)! Also:

He has developed his own version of the Czech-made single-use Rapier jet motors (which are very similar to black powder model rocket motors [see: www.rapier.cz and www.jetex.org ]--they burn longer, and at lower thrust, to power Free-Flight model jet planes of the Jetex type). They could also power low-thrust, long-burning, boosted single-stage model rockets (including scale models of the WAC Corporal, Aerobee, IRIS, Boosted Arcas I, INTA-255, Skylark [the Cuckoo-boosted variants], the Skua, and the Petrel), as well as provide secondary (horizontal flight) propulsion for boost-gliders and rocket gliders. Now:

Dr. Jones needs tooling to produce these motors in prototype batch quantities for field testing & evaluation by modelers such as yourselves, as his development jet motors have all been hand-packed. If anyone here would like to assist him (he is totally deaf, so he uses e-mail and postal mail to communicate), I have also included his postal address below. In addition, I've included his Rocket Science Books website's URL (his book outlet, which offers reprints of rare rocketry and jet propulsion books), below his postal address:

Rocket Science Institute
PO Box 1102
Mojave, CA 93502

Jetex books: http://rocketsciencebooks.com
Pulsejet books: http://rocketsciencebooks.com

I hope this information will be helpful.
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http://www.lulu.com/product/cd/what...of-2%29/6126511
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  #2  
Old 04-22-2014, 12:12 PM
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Chr$ Chr$ is offline
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Hmmm... 11 days and no comments? Sounds interesting. I Like long burn motors.
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  #3  
Old 04-22-2014, 07:29 PM
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blackshire blackshire is offline
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Quote:
Originally Posted by Chr$
Hmmm... 11 days and no comments? Sounds interesting. I Like long burn motors.
Thank you for bringing this back into my mind--I've been so busy getting ready for gall bladder surgery tomorrow that I'd forgotten about this thread! I'm surprised and disappointed at the lack of interest as well, because low-thrust, long-burn motors have many uses in model rocketry, particularly for scale models (even if "straight" Rapier-type jet motors were used--a tiny clockwork DT timer [De-Thermalizer timer] could deploy a recovery system since jet motors lack delay and ejection charges). Also:

I can report progress. Dr. Edward Jones has successfully tested both Jetex fuel pellets of his own formulation and (in heavy-weight motor tubes) Rapier-type single-use jet motors, which he calls Spadroons. I am arranging to get him some flight-weight Spadroon motor tubes (convolute-wound [parallel-wound] paper tubes like black powder model rocket motor cases), and when he has these he will (after static testing some of them) have jet modelers evaluate them in flying model jet planes of the Jetex/Rapier type.
__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR
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Old 04-22-2014, 07:35 PM
mikemech mikemech is offline
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Interested, yes. Spare money to invest/donate, no. Wish I could.
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  #5  
Old 04-22-2014, 08:16 PM
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blackshire blackshire is offline
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Join Date: Jan 2009
Location: Fairbanks, Alaska
Posts: 6,507
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Quote:
Originally Posted by mikemech
Interested, yes. Spare money to invest/donate, no. Wish I could.
Dr. Edward Jones needs some equipment and tooling--if you have any (he could list them better than I could--his e-mail address is: rocketscienceinstitute@gmail.com ), that would help him as well. He can currently hand-press Jetex fuel pellets and Spadroon (Rapier-type) single-use jet motors one at a time, in a manner similar to how Orville Carlisle hand-pressed the first black powder model rocket motors, and he needs to be able to produce limited quantities of them per day (nothing even near what Estes' "Mabel" machines can crank out--maybe 30 - 50 a day would be sufficient) for the initial evaluations.
__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR
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