To give you an idea as to how the PAW19 compares to a glow 2-stroke and a 4-stroke, this is some test data for one of each that I flew in the same airplane. The figures are all with the same propeller:

The first was a K&B Sportsman 20.

Installed weight = 9.6 ounces
Full throttle = 11,790 rpm
Idle = 2,850 rpm

The second was the PAW 19.

Installed weight = 6.8 ounces
Full throttle = 9,600 rpm
Idle = 2,800 rpm

The last was an ASP 30 four stroke.

Installed weight 8.5 ounces
Full throttle = 10,800
Idle = 2,650 rpm


10-5 master prop

Performance of the airplane was similar with each engine. The engines were tuned for flight which in each case is just a little rich of peak rpm. It was a little more spritely with the Sportsman 20 as you might guess from the figures.