aerowoof

that size model will be way overpowered with 60's the don smith model has 4 60 size 2 strokes or 91 4 strokes and it is about 135 in span.at your 105 inch span that is in the .25 size range.I built one from kyosho plans enlarged to 100 inches to match the scale of my stafford b-24 at 90 inch span and used 4 fox .25's it weighed 18 pounds.used spring air hd retracts and robart struts,flew fine had plenty of power.had to mount the tanks like it is done in the b-24 to allow for the retracts.used the astafford method from the b-24 for fowler flaps also but used two servos instead of just one and only 2 bellcranks instead of four.used seperate mini servo on each engine made setup alot easier.rudders were easy.just connect the outers to the middle via rod for a horn and a linkage running thru the stab to the center rudder.