Throws for Extra 300
I and my friend just finished a scratch bulilt Extra 300 wing span 68". The plans were Carl Goldberg Extra 60-90. But the powerplant we used are OS 108 (BX 1) on each plane. Can someone suggest throws for 3D & and sports flying. The reason we over powered our planes is, elevation above see level, and the fact we always use home blended fuel with NO nitro !
regards
Dr R H Malik