Tominator 2
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I have an aerodynamics question for you guys. Attached is an open rocket file for a 38 MD design. It was inspired by the loki dart that i posted pics of on TRF recently.
Anyways, like the loki dart and booster, the fins are pretty small. This file has them at 1.27"
Which is 0.30" shorter than the outside diameter of the rocket. Now people do the whole rule of thumb thing for rockets saying you have to have the fins be equal or greater than the diameter of the BT. Do you think things change with an extra fin?
Someone mentioned that the loki dart wasnt stable unless it had spin stablization from the launcher itself. But that might be a CG issue...
I would make sure the rocket would have plenty nose weight so the calibers of stability would be sufficient.
What do you guys think?
-Tom
View attachment 38mm rocket Open rocket 4 fins .ork
Anyways, like the loki dart and booster, the fins are pretty small. This file has them at 1.27"
Which is 0.30" shorter than the outside diameter of the rocket. Now people do the whole rule of thumb thing for rockets saying you have to have the fins be equal or greater than the diameter of the BT. Do you think things change with an extra fin?
Someone mentioned that the loki dart wasnt stable unless it had spin stablization from the launcher itself. But that might be a CG issue...
I would make sure the rocket would have plenty nose weight so the calibers of stability would be sufficient.
What do you guys think?
-Tom
View attachment 38mm rocket Open rocket 4 fins .ork