JUSS10
I like Biplanes
Thanks for the tips everyone.
I actually have a vacuum former at work so I do plan to make a "buck" to form another cowl. It'll have to be a two piece cowl though as it widens at the nose and you wouldn't be able to remove it from the form.
I was thinking of making a 2 piece negative mold of it and then lay light fiberglass in that and split the mold when done. We'll see.
As for a contour gauge, I do have one. I am a model maker of sorts by trade so I plan to model the whole plane up in cad so I can duplicate parts in the event of a crash. Already have the airfoil drawn up and the dihedral angle found out. May actually build a 75% size model out of DTFB for fun.
rockyboy, thanks for that chart. I think the motor I am picking up is somewhere in the 900 to 1100 watts range dependent on how its set up. I would think the 90-110 watts per pound sounds like a safe place for me to be, if thats the case, I think I'll be ok to get it off the ground. We'll see.
Got a buddy with a pile of standard futaba servos that I think I'll use for this. Likely the type of servos that were on the market when this plane came out!
Now, here is your opportunity to learn a new skill. It's not hard to make a home vacuum forming setup to make small parts out of plastic. MAke magazine had a good writeup of how to make one in your kitchen:
https://makezine.com/projects/make-1...vacuum-former/
you can then just tape over the original cowl's hole, and then vacuum form a new cowl out of plastic. If you crash and destroy the cowl, you can then make a replacement part. this is a good skill for modelers flying obsolete planes.
I actually have a vacuum former at work so I do plan to make a "buck" to form another cowl. It'll have to be a two piece cowl though as it widens at the nose and you wouldn't be able to remove it from the form.
I was thinking of making a 2 piece negative mold of it and then lay light fiberglass in that and split the mold when done. We'll see.
As for a contour gauge, I do have one. I am a model maker of sorts by trade so I plan to model the whole plane up in cad so I can duplicate parts in the event of a crash. Already have the airfoil drawn up and the dihedral angle found out. May actually build a 75% size model out of DTFB for fun.
rockyboy, thanks for that chart. I think the motor I am picking up is somewhere in the 900 to 1100 watts range dependent on how its set up. I would think the 90-110 watts per pound sounds like a safe place for me to be, if thats the case, I think I'll be ok to get it off the ground. We'll see.
Got a buddy with a pile of standard futaba servos that I think I'll use for this. Likely the type of servos that were on the market when this plane came out!