11bravo
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- Jan 18, 2009
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Attached is a RS file of an upscale that I am ready to start on the fins.
The original has a plastic fin can that has fins that are all of about 1/20th of an inch thick.
A not very good picture of it can be seen here-
https://pg.photos.yahoo.com/ph/gps_greg/detail?.dir=2fbe&.dnm=803b.jpg&.src=ph
This is VERY close to a 2.5x upscale which would yeild fins of 1/8" thickness.
But, when I looked at plywood that thick (or should I say "thin") I was way worried that it would not survive landings as the fins will almost certainly hit first.
3/16" didn't impress me with it's robustness much either.
And since they will be TTW mounted, a broken fin will pretty much equal a totaled rocket.
I currently have the rocket designed with 1/4" fins that I'm pretty sure will take the hit and it seems to fly just fine, but what do you guys think?
Good to go?
Too Thick?
Thanks,
Greg
The original has a plastic fin can that has fins that are all of about 1/20th of an inch thick.
A not very good picture of it can be seen here-
https://pg.photos.yahoo.com/ph/gps_greg/detail?.dir=2fbe&.dnm=803b.jpg&.src=ph
This is VERY close to a 2.5x upscale which would yeild fins of 1/8" thickness.
But, when I looked at plywood that thick (or should I say "thin") I was way worried that it would not survive landings as the fins will almost certainly hit first.
3/16" didn't impress me with it's robustness much either.
And since they will be TTW mounted, a broken fin will pretty much equal a totaled rocket.
I currently have the rocket designed with 1/4" fins that I'm pretty sure will take the hit and it seems to fly just fine, but what do you guys think?
Good to go?
Too Thick?
Thanks,
Greg