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Dry Weight with Acc's (Starter Motor + Alternator + Carb) = 102 Kg (225 lb.s)
Propeller hub is driven via precision ground and matched taper. Propeller flange specs are standard and are the same as used for a Rotax 912 Series.
Gearing is via a PSRU ( Planetary Speed Reduction Unit) at a radio of 3:2 engine rpm:Prod rpm.
The wooden Propeller used for our aircraft is a Fixed 72" Diameter x 56"Pitch.
Fully machined aluminium crankcase and heads. Steel 4140 billet crankshaft, nitride hardened and ground, running on two large anti-friction roller bearings, propeller support and end thrust controlled by single deep groove ball bearing. Steel 4140 master and link rods deeply I bean sectioned and plain bushed, all lubricated by mains oil pressure. Steel 4140 cylinders precision honed to a perfect finish and exact tolerance.