- Incredible power—2.5 horsepower
- APC 16 X 8 over 9,000 rpm
- Same dimensions and weight as 1.20-size engines
- Stronger and more modern crankcase than the previous version
The 1.50S is actually a bored-out 1.20S for an incredible power-to-weight ratio. With over 20% greater displacement, the 1.50S will happily swing an APC 16×8 prop at 8,800 rpm with 15% fuel.