For model airplanes from
ca 1.000 to 5.000 gram weight

shaft diameter from
4,0 mm to 8,0 mm

adjustable upward gradient from
4,0'' (102 mm) to ca 15'' (381 mm)

propeller diameter from
10,1'' (256 mm) to 15,2'' (386 mm)
Hub can be used directly on 8mm threaded shaft. For smaller shafts an adapter is required.