| S13a comparative tests Model Engine Prop Exhaust Noise RPM F L B R Hi Boy OS 35 10x6 Std 81 77 73 82 10500 Std+S13a 77 72.5 68.5 75.5 10700 Wot 4 Super Tigre 45 ABC 11x7 Std 83 81 78 84.5 10500 Std+S13a 80 77.5 75 78 10500 Wot 4 Super Tigre 45 ABC 11x7 Std 82 84 75 82.5 9600 Std+S13a 78.5 79.5 72 77 9500 Magician OS 40 SF 11x6 Std 79.5 77 73.5 77 10600 Std+S13a 77.5 76 72 76.5 10500 Wot 4 Super Tigre 45 ABC 11x7 Std 84 80 81 83 10400 Std+S13a 76.5 75 72.5 75.5 10300 |
| S13a comparative tests |
 |
 |
 |
 |