#41
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Uh... My Majestic has an empty weight of 9.3 ounces.
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Bob S.A.M. # 0014 |
#42
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Thank you, Steve.
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Bob S.A.M. # 0014 |
#43
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What I see in the photos is simply two different amounts of "delay slag" build-up in the nozzles.
I cannot see the actual nozzle throat or exit cone as they are covered with the layer of slag. The slag has absolutely nothing to do with performance during the thrust phase and cannot possibly create any thrust vectoring. It is simply deposited byt the delay buring. The delay produces a hot slag somewhat similar to what you see produced by a highway flare. Differeing amounts of slag deposit can be a result of many factors, including the speed of the rocket during the delay phase or if the rocket was already on the ground and laying sideways during all or part of the delay burn. Hopefully the motors will be completely forensically studied, including careful removal of the slag to see if the "Strong Like Ox" clay nozzle still maintains the original dimensions and symmetry. Quote:
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-Fred Shecter NAR 20117 (L2) Southern California Rocket Association, NAR Section 430 |
#44
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Did you add a baffle, Bob? And I would imagine it would require an insanely underweight nose cone to affect the stability of this rocket. Maybe it's time to get everyone to weigh their nose cones (prior to painting....) and post the data?
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-Fred Shecter NAR 20117 (L2) Southern California Rocket Association, NAR Section 430 |
#45
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I'm thinking that the minor, slow tail wags (coning) during the boost phase of my F15-0/E16-8 launch might have been due to aerodynamic effects from a slight mismatch in the alignment of the booster and sustainer fins. My next launch with the same motor combo will have the fins staggered to see if that was it. |
#46
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#47
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Yes, my Majestic model has a Semroc EB-20 baffle. All my PSII E2X models have this baffle system. Saves money on wadding.
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Bob S.A.M. # 0014 |
#48
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My Majestic came off the rod faster than the Ascender pretty much as I had expected being lighter. Since I repaired it I do plan to fly it again staged at our next launch in a couple of weeks. I just received my PSII Booster on Tuesday so I'll put it together tomorrow to bring to the launch and first flight will be with my Majestic. I am looking forward to it. The F15-6 from the unstable flight that I had reported was returned to Estes today. .
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Steve Naquin TRA# 677 L2 NAR# 85518 L2 SAM# 0052 🚀 In Construction: Der Blue Maxx/Minie-Magg 5.5” & Vander-Burn MDRM Clone w/Stickershock23 Custom Decals 🚀 In Paint & Detail: USR Banshee 🚀 In Build Queue: Estes Doorknob w/Vander-Burn Rocketry Upgrade Kit [Sport Decor], Semroc Centurion-F, Semroc Egg Crate 🚀 In Repair: SLS Lil’ Hustler, SLS Aero-Dart 1969 Trim 🚀 Stay Tuned For Fall 2021 Launch Dates |
#49
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Flew my Majestic today for the first time. Used and E15 and recorded an altitude of 856' on my Estes altimeter (launching in Colorado, at an elevation of 5,030'). Best part - there was so little wind, the model landed just 60' from the pad. Can you say "thankful?"
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