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mccordmw

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I think I'll keep this as a running list of what I'm going to tool around with over the boring winter. First up, I'm fiddling around with an airframe based on a broadhead arrow.

If this does well on LPR, I'll scale up to MPR. It's a simple design, but I'm a tad worried about the fins as balsa on LPR. 1000' on a C motor and recovery on a 9" plastic chute. If I can build fins that can take a beating, this would scream at MPR scale. I'll call it...uh, Broadhead. Yeah, that's original enough.

broadhead.jpg
 

les

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Cool. Have you considered basswood? a bit stronger than balsa. Paper the fins for additional strength
 

mccordmw

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The other scratch build I'm doing is a mesh fin model set in a plastic fluorescent light mesh as the fin set. OR won't model it properly, so I'll need to do some string testing. I have no idea about its performance. Need a good name for it...


meshfin.jpg
 

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mccordmw

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And last, but not least, I'm rebuilding my MIRV. Not a scratch built kit though. However, I think I'll make some modifications to it. The last one twisted on the launch rod, took off too slow, and went cruise missile. It was last seen headed over a small hill toward a pond when the subassemblies launched and deployed their nosecones somewhere over the pond. The booster was found. All witnesses said, "Cool" at least. :-D

No OR or rocksim on it. Too complex for those programs, I guess.

mirv.jpg
 

dhbarr

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The other scratch build I'm doing is a mesh fin model set in a plastic fluorescent light mesh as the fin set. OR won't model it properly, so I'll need to do some string testing. I have no idea about its performance. Need a good name for it...


View attachment 302089
Model it as W fins of XYZ dimensions, same as trans-mach tubefin.

Hexcaller? Luft Waffle? Fluorescish?
 

MikeyDSlagle

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I think I'll keep this as a running list of what I'm going to tool around with over the boring winter. First up, I'm fiddling around with an airframe based on a broadhead arrow.

If this does well on LPR, I'll scale up to MPR. It's a simple design, but I'm a tad worried about the fins as balsa on LPR. 1000' on a C motor and recovery on a 9" plastic chute. If I can build fins that can take a beating, this would scream at MPR scale. I'll call it...uh, Broadhead. Yeah, that's original enough.

View attachment 302086
Nice! Can I have your sim file? Would like to try one of these myself of something similar, maybe in a 3".
 

gerbs4me

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I think I'll keep this as a running list of what I'm going to tool around with over the boring winter. First up, I'm fiddling around with an airframe based on a broadhead arrow.

If this does well on LPR, I'll scale up to MPR. It's a simple design, but I'm a tad worried about the fins as balsa on LPR. 1000' on a C motor and recovery on a 9" plastic chute. If I can build fins that can take a beating, this would scream at MPR scale. I'll call it...uh, Broadhead. Yeah, that's original enough.

View attachment 302086
Very cool design
 

tab28682

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The other scratch build I'm doing is a mesh fin model set in a plastic fluorescent light mesh as the fin set. OR won't model it properly, so I'll need to do some string testing. I have no idea about its performance. Need a good name for it...


View attachment 302089

I would probably call it "Meshing Around", but that is just me.....;)
 
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