snrkl
Well-Known Member
- Joined
- Apr 11, 2017
- Messages
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BT60 to BT20, designing for a B6-0 to A8-3 with gap staging...
I am trying to figure out is booster recovery.. With GAP staging there is no place for a streamer of any kind that I can think of..
From memory, if the Booster CG is behind the CP, this will make it tumble, so I am thinking about adding a tail weight to the back to make the booster unstable after separation... You can see the tail weight object in the schematic... I am not super keen on tumble recovery, so I am mulling over what could be done to get a streamer in there somewhere...
I am also thinking about fin profiling methods.. I have hand sanded enough double diamonds to hate the idea of doing it by hand, but the fins are so small and the bevel so shallow, using the belt sander like I have for my mach1 aspire seems like it would be knuckle grazing territory... I am wondering if I make the fin from 3mm balsa with the fin tabs, then build shaped second layers to carry the bevel, but then that means bevelling even smaller wedges...
I also have no idea where to get a nosecone from... looks like I would have to custom turn from a balsa dowel maybe...
So, here i sit, pondering...
View attachment LPR Nike Apache.ork
I am trying to figure out is booster recovery.. With GAP staging there is no place for a streamer of any kind that I can think of..
From memory, if the Booster CG is behind the CP, this will make it tumble, so I am thinking about adding a tail weight to the back to make the booster unstable after separation... You can see the tail weight object in the schematic... I am not super keen on tumble recovery, so I am mulling over what could be done to get a streamer in there somewhere...
I am also thinking about fin profiling methods.. I have hand sanded enough double diamonds to hate the idea of doing it by hand, but the fins are so small and the bevel so shallow, using the belt sander like I have for my mach1 aspire seems like it would be knuckle grazing territory... I am wondering if I make the fin from 3mm balsa with the fin tabs, then build shaped second layers to carry the bevel, but then that means bevelling even smaller wedges...
I also have no idea where to get a nosecone from... looks like I would have to custom turn from a balsa dowel maybe...
So, here i sit, pondering...
View attachment LPR Nike Apache.ork