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#1
08-21-2015, 10:54 PM
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Rxiiiab
This is the Rxiiiab (prounounced 'rxiiiab'). I don't usually fly naked rockets, but this is a prototype for a larger and more odd rocket, and I figure for prototypes I can make an exception, so this is on tomorrow's manifest. The flared tail cone is not only this rocket's stabilization mechanism, it's also where the streamer is stored before rear ejection. I'll be trying an A10-3T in it.
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Rich Holmes Camillus, NY Secretary / newsletter editor Syracuse Rocket Club http://richsrockets.wordpress.com 
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#3
08-22-2015, 08:00 AM
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The cone's glued in. There's nothing but air between the motor pod and the cone. Well, air and 8.5 grams of clay...
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Rich Holmes Camillus, NY Secretary / newsletter editor Syracuse Rocket Club http://richsrockets.wordpress.com
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#4
08-22-2015, 10:24 AM
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Egglofters tend to cone unless you have larger fins. It might actually fly better with the absolute minimal amount of nose weight required. 8.5g doesn't seem excessive to me, but watch for that.
Jerry
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#5
08-30-2015, 09:42 AM
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I flew it twice and it was steady as a rock. It also recovered like a rock; the streamer slowed it down but not by a lot.
 I'm thinking I could indeed reduce the nose weight. Anyway, I painted it. Plain navy blue. Maybe I should have attacked the nose weight first. But we had painting weather, and won't get a lot more this year... 
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Rich Holmes Camillus, NY Secretary / newsletter editor Syracuse Rocket Club http://richsrockets.wordpress.com
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#6
08-30-2015, 10:03 AM
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If you were trying to land it in the bucket ... congratulations on a very fine flight!
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Lee Reep NAR 55948 Projects: Semroc Saturn 1B, Ken Foss Designs Mini Satellite Interceptor In the Paint Shop: Nothing! Too cold! Launch-Ready: Farside-X, Maxi Honest John, Super Scamp
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#7
08-30-2015, 10:06 AM
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Missed it by that much!
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Rich Holmes Camillus, NY Secretary / newsletter editor Syracuse Rocket Club http://richsrockets.wordpress.com
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#8
08-31-2015, 07:22 AM
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Quote:
Reminds me of the old SAI Vulcan. It used a harwood nose cone for the weight.
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Enjoy life, it has an expiration date. Last edited by Rocketflyer : 08-31-2015 at 10:46 AM.
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#9
08-31-2015, 10:27 AM
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Thanks, Googling that led to several cone stabilized rockets I'd not seen before. The Vulcan is shown in a small, black and white, low resolution photo on PDF page 14 (page number 12) of the April–May 1971 Model Rocketry:
http://www.ninfinger.org/rockets/Mo..._(04-05)-71.pdf It's said to have been based on the Arcturus from the Nov 1969 issue: http://www.ninfinger.org/rockets/Mo...02n02_11-69.pdf And in Nov 1970 there was the Candlestick: http://www.ninfinger.org/rockets/Mo...03n02_11-70.pdf And here's another from American Rocketeer, Vol. 4 No. 1: http://ninfinger.org/rockets/catalo...mrock41_14.html But I'm kind of surprised I haven't yet found a previous example using rear ejection.
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Rich Holmes Camillus, NY Secretary / newsletter editor Syracuse Rocket Club http://richsrockets.wordpress.com
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#10
08-31-2015, 10:54 AM
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From the JIM Z website:
__________________
Enjoy life, it has an expiration date.
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