Type: Glow Shaft rotary valve

Main Bearing: 2 ball bearings

Bore x Stroke: 0.654 x 0.590 in

Displacement: 0.198(3.25c.c.)

Weight: 8.5oz.

Compression ratio:

   low 9 : 1

   high 10.5 : 1

Max. power: 0.55H.P.

R.P.M.: 2.500 ~ 19.000

Proper size of propeller dia x pitch. in.

 R/C: 8 ~ 9 x 6 ~ 4