Okay, obviously I'm doing something wrong here. I built 2 mini Arrows out of Dollar Tree foam board and they came out perfect! Once I mount the recommended Emax 2300 motor, 30A ESC, Lemon Receiver, and a 3S 1300mAh battery shoved all the way forward, that's where it all goes bad. The CG is about 1 inch from the firewall instead of the 1.75 inches. I had to add 50g of weight in the nose just to get it to balance. I also placed the receiver and ESC in the compartment bays trying to move as much as I can forward. The AUW is now 509g.
The CG seems to be perfect until I put the vertical fins on, which is way aft of the CG. I used foam board to make one set of fins and 3-D printed another set (which is actually lighter) and with either one, the CG is too far aft without adding 50g of lead weight. Does anyone have a clue as to why??
Thanks!
The CG seems to be perfect until I put the vertical fins on, which is way aft of the CG. I used foam board to make one set of fins and 3-D printed another set (which is actually lighter) and with either one, the CG is too far aft without adding 50g of lead weight. Does anyone have a clue as to why??
Thanks!