Displacement:1.15 cu in (18.9cc)
Bore:1.25 in (31.7mm)
Stroke:.94 in (24mm)
Total Weight:23.49 oz (665 g)
Engine (Only) Weight:20.6 oz (585 g)
Muffler Weight:2.89 oz (80 g)
Crankshaft Threads:M8 x 1.25mm
Benchmark Prop:APC 15 x 6 @8800 rpm
Prop Range:14 x 8 – 16 x 6
RPM Range:1,800 to 10,000 rpm
Fuel:10/30% nitro with synthetic/castor mix
Mounting Dimensions:115 x 60 x 110 (L x W x H) crankcase - width 40 / mounting holes - 50 OC
Carb Type:2 Needle
ual Ball Bearing
These specs direct fom Horizon and should be in your instructions.
PS, Sorry Frederico, I missed the three blade part, you may be alright with the 12.5x7 3B. My Fox .74 Diesel turns the 12x5x7 3B at about 8,300.