ORIGINAL: flycatch
I wonder how many modelers fail to realize the CG will change when the fuel is burning off. How many modelers actually place there fuel tanks on the CG? Not to many I figure. I learned this a long time ago running YS engines in pattern planes. A pumped engine does have its' benifits.
I know about placing the fuel tank on the CG since I am 16 years old flying CL combat,silk and dope a highly modified FLIGHTSTEEK , with a 4 oz tank on the CG inside the wing (most had trouble putting a 2 oz tank on it short front nose ) just loved having the extra flying time -a flip back on the compression and the Johnson 35 sprung to life 99.9 % of the time
Need to get a quick start up in combat events
I am 68 years old
THe idea is a real good one , to increase stability of the airframe throughout the flight ,with the a constantly changing decrease in fuel weight ,as the flight proceeds , the change in the weight at the CG 's will have less direct effect on the planes balance , than if the tank is located any place else in the fuse
Need to run two cycle glo engines rich for the same reason , fuel burning off in the tank will cause the engine to -lean out as the fuel in the tank decreases ( does not apply to a pumped engine )
YOU did ask