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Does anyone have a tutorial for OR's fin designs?
I'm working on a design, it's not available on rocket reviews as a .rkt, and it has trapezoidal fins.
I know the width of the fins (and thus the tip chord), as well as the lengths of the leading and trailing edges, but not the root chord, height, nor sweep. I've always found the freeform fins to be a PITA, unless I can manage to change an image of the fin pattern into a black and white image and import it from there.
Tip edge/Width is 1 1/4inch
Leading Edge is 3 3/8 inch
Trailing edge is 2 25/32 inch
By math, I figured the root edge to be 1.38", but I'm not 100% certain that the tip edge is at a 90 degree angle to the leading and trailing edges.
BTW, the rocket is the Estes Marauder #1922 kit.
Some help here would be appreciated.
Thanks!
Jim
I'm working on a design, it's not available on rocket reviews as a .rkt, and it has trapezoidal fins.
I know the width of the fins (and thus the tip chord), as well as the lengths of the leading and trailing edges, but not the root chord, height, nor sweep. I've always found the freeform fins to be a PITA, unless I can manage to change an image of the fin pattern into a black and white image and import it from there.
Tip edge/Width is 1 1/4inch
Leading Edge is 3 3/8 inch
Trailing edge is 2 25/32 inch
By math, I figured the root edge to be 1.38", but I'm not 100% certain that the tip edge is at a 90 degree angle to the leading and trailing edges.
BTW, the rocket is the Estes Marauder #1922 kit.
Some help here would be appreciated.
Thanks!
Jim
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