Propeller torque is 2.33 x the above. Peak torque at the propeller is 217 ft lb
The standard propeller extension is 1.5" but up to a 4.75" can be used. With a 12" spinner, only a small drop to the cowling at the front is needed to enclose the engine.
VIKING 90 DYNO RUN VIDEO
Viking 90 HP - Rotax 912 replacement
| Type | 1.2 L DOHC, 12- valve Inline, 3 cylinder |
HP | 90 @ 5800 RPM |
| Weight | 159 lbs |
| Gearbox Ratio | 2.33/1 |
| Takeoff RPM | Engine 5800 |
| Prop 2500 | |
| Cruise RPM | Engine 4500 |
| Prop 2000 | |
| Static RPM - STOL Aircraft | Engine 5800 RPM |
Prop 2500 RPM | |
Static RPM - Cross Country Aircraft | Engine 5200 RPM |
| Prop 2200 RPM | |
| Coolant Temperature | 180-220 F |
| Oil Temperature | 180-230 F |
| Oil Pressure | 20-80 Psi |
| Fuel Pressure | 43 Psi |
| Fuel | 100LL/ 89+ Octane Auto Fuel |
| Length | 22 in |
| Height | 25 in |
| Width | 19 in |
| Gearbox Oil/Type/Quantity | 75W-90 Mobile One Synthetic Gear Oil/6 oz |
| Engine Oil | 0W-20 |
| Coolant | Evans NPG Plus |
| Coolant System Pressure | 4 Psi |
Hi Alissa,
The Viking 90 engine For my CH-701 arrived today and looks perfect! I'm really happy how light it is. My neighbor and I picked it up to put it in a van with no issues. I'm pretty sure it's lighter then the GP VW 2180 with Valley redrive.
A lightweight gearbox development is complete for the 90 HP Viking model. This gearbox will work on pusher aircraft and on installations where the propeller does not have to be at the top of the engine. For those installations, a 3 gear gearbox is used.
The port injected engine is more fuel efficient than the carbureted Rotax engine. So, you will do as good or better when planning fuel flow.