116 NP LC – liquid-cooled two-cylinder boxer engine
Design and FeaturesThe engine cylinder is a casted from aluminum alloy with a galvanically applied hard working surface using nikasil technology. The piston is casted from an alloy with a high silicon content and has a groove for one piston ring made of special hardened cast iron. A special molybdenum sulfite coating is applied to the piston surface to reduce friction and extend engine life-time. The crankshaft made of alloyed steel is supported by two ball bearings, the connecting rod made of high-strength duralumin has both eyes mounted on needle roller bearings.
Thanks to the ingenious water cooling system, there is no reduction in load performance, regardless of climatic conditions. The drive unit is complemented by a miniature pressure circulating gear pump driven by a crankshaft.
The engine is characterized above all by a very high power in the entire speed range. Of course, it is very easy to start in both cold and warm condition, excellent reliability and very low vibrations. Its weight stands at today's minimum of this range. The overall positive impression is enhanced by the modern design with blue anodized parts and perfect workmanship exclusively on CNC machines.
The preparation of the mixture is controlled by two Walbro carburettors with a choke and a diaphragm pump. The ignition is battery powered with electronics and a microprocessor controlled ignition timing and with safety functions.
|Model||MVVS 116 NP LC, boxer, 2-stroke, 2-cylinder|
|Air/Water-cooled||✔ / ✔ (both options available)|
|Max. output (without generator)||11,3 PS (8,4kW) @ 5900 min-1|
|Practical RPM range||1500 - 7000 min-1|
|RPM range||900 - 9500 min-1|
|Weight (without starter and pump)||3000 g|
|Spark plug||2x NGK M10 (CM-6)|
|Fuel||Unleaded 95-octane fuel|
|Lubrication||Oil (Mobil Racing 2T) with petrol in mixture 1:40|
|Recommended propeller||Mejzlik 30"x10"|
|Recommended headers||2x 3414|
|Recommended exhausts||2x 3511 or 3611|
|Fuel supply||1x Carburettor (Walbro WB27)|
|Weight of fuel supply||1x 230 g|
|Weight of ignition||1x 280 g|
|Fuel Consumption @ 4100 RPM||3,0 l/hour|
|Fuel Consumption @ 5500 RPM||4,4 l/hour|
|Fuel Consumption @ 6000 RPM||4,7 l/hour|
|Operating enviromental limits||3000 m|
|Endurance time||Approx. 300 hours (every 100 hours check)|
|Electric starter with controller||✔|
|Weight of starter (and controller)||686 g|
|Static thrust @ RPM||
26 kg @ 5900 min-1