| RPM and Thrust |
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| Although static maximum thrust as measured on the ground is not an exact measure of performance in the air, it does give an indication of how an aircraft will perform on takeoff and in a climb. We measured maximum RPM, noise emission and static maximum thrust using a spring balance: Aircraft: Wot 4 Engine: Super Tigre 45 ABC Silencer: Standard (All propellers are Graupner) Propeller RPM Noise Thrust (lbs) F L B R 10x6 13000 86 83 76 82 5.6 11x6 11100 86 81 76 80 5.7 11x7 10000 83 76 74 80 6.1 11x8 8900 81 75 72 75 5.0 12x6 9400 83 75 70 76 5.0 12x7 8500 80 75 70 75 5.1 Thus peak thrust is achieved at 10000 RPM, with considerably less noise that when running a 10x6 prop. |
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