#11
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Quote:
It is conical. Photo from side attavhed. I have been meaning to put it in rocksim. It is in 3ds Max now.
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Carl McLawhorn NAR#4717 L2 semroc.com |
#12
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Something that you could come close with a BT-60 and cardstock fillets and a simple conic NC?
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Gravity is a harsh mistress SAM 002 NAR 91005 "The complexity of living is eminently favored to the simplicity of not." |
#13
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Thanks Sheryl & Carl ! My all-time favorite. Even though I'm partial to the longer version, I'll have to get one of these. I see you've used a smaller than original chute, I can't imagine why! (I'll still substitute a streamer.)
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Paul If we weren't all crazy, we would go insane - Jimmy Buffett NAR #87246 www.wooshrocketry.org |
#14
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Cherokee-D Arrived in Mail Today
Cherokee-D arrived in the mail today. Oh did that ever bring back memories. Identical to the ones I build long ago and flew my first "D" flights. Lost every one of them when they landed in corn fields. Maybe can do better now.
Had to hunt for the decal sheet. At first I thought SEMROC left it out. ( not likely ) Found the decal sheet curled up inside the body tube. Thank you SEMROC !!
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Dumpster Diver |
#15
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Cherokee-D's with D engines in ANY wind are recoverable generally only when using a streamer.
Use about a 90"x3" length of crepe paper. With no wind, a 12" chute with a 4-6" spill hole works okay. Forget the 18" chute; good way to lose one even on a C11.
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When in doubt, WHACK the GAS and DITCH the brake !!! Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't ! Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY. ALL systems are GO for MAYHEM, CHAOS, and HAVOC ! |
#16
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Cf-691
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So Carl, As a follow on your popular VF261, bet you would get massive interest in a "Carl's Fantasy 691" Boost Glider. Think it looks awesome. Garth Illerbrun SAM 20 CAR S04 TRA 817 |
#17
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I cloned one back in 2001 that I flew on C11s and D12s, then built a Thrustline clone that I flew on mostly D12s. The one I built myself suffered a CATO on the D12 flight, my first ever, that cleaned out the engine mount for me. Since I had the Thrustline kit by then I put an E mount in the original clone and did manage to lose it on the first flight, but only because I was flying in serious wind. Never had a problem recovering them at VOA with a reefed 18" chute. Some of the walks were like day hikes, but my Thrustline bird is out in the shop now with a damaged nose cone from rebounding into the body tube. Otherwise, it's flyable.
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Bill Eichelberger NAR 79563 http://wallyum.blogspot.com/ I miss being SAM 0058 Build floor: Centuri Design Contest F-150 Hurricane Estes - Low Boom SST Semroc - Gee'Hod, Shrike, SST Shuttle In paint: Canaroc Starfighter Scorpion Estes F-22 Air Superiority Fighter, Solar Sailer II Semroc Cyber III Ready to fly: Estes - Multi-Roc, Solar Sailer II Semroc - Earmark, Snake Jumper |
#18
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My whole point is using a 18" chute, reefed or NOT, is IDIOTIC on a rocket that weighs 2.5 oz sans propellant. TOTAL NONSENSE.
I have a vintage black-and-orange Estes checkerboard 12" chute in my Thrustline clone Cherokee-D and it will never fly with that on a D engine unless dead calm.
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When in doubt, WHACK the GAS and DITCH the brake !!! Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't ! Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY. ALL systems are GO for MAYHEM, CHAOS, and HAVOC ! |
#19
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When I cooked up my 3-stage Uber Tuber, on its first flight, I had only a single D12 in the 1st stage. It crawled off the rod. By the time the 3rd stage lit, it was horizontal in the sky. It went way down range. But the good thing was, I was using a mylar streamer. Don Magness and I recovered it after a good long walk. Those mylar streamers are amazingly helpful when you're pushing the limits. The glint of light reflecting off them makes them much easier to track at long ranges. So having the right amount drag in the recovery system is only part of the solution. Having a shiny, reflective streamer is another key part. Doug...too bad they don't make mylar golf balls... .
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YORF member #11 |
#20
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Quote:
I'll write that down.
__________________
Bill Eichelberger NAR 79563 http://wallyum.blogspot.com/ I miss being SAM 0058 Build floor: Centuri Design Contest F-150 Hurricane Estes - Low Boom SST Semroc - Gee'Hod, Shrike, SST Shuttle In paint: Canaroc Starfighter Scorpion Estes F-22 Air Superiority Fighter, Solar Sailer II Semroc Cyber III Ready to fly: Estes - Multi-Roc, Solar Sailer II Semroc - Earmark, Snake Jumper |
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