MVVS 116 User Manual

Operating instructions

MVVS 116 IRS No: 3010

Version 1.3

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Before using the engine, please read these instructions carefully.

Congratulations on choosing the gas engine MVVS 116cc.
MVVS 116cc has been designed and manufactured for propeller-powered radio-controlled model planes. It is able to meet all of your
expectations of an acrobatic racing engine.

Technical specifications

Bore

Stroke

Weight of complete engine
without ignition*
Weight of ignition unit

RpM range

* Some manufacturers state the weight of incomplete engines. The value in the table above stands for the weight of a completely
assembled engine, including the spark plug, carburetor, drive washer and prop screws.

** Power output varies with the exhaust used. The value given in the table stands for the maximum available power output.

42 mm

42 mm

3100 g

270 g

1000 – 7500 RpM

Maximum power output **

Silencer INT 58.01+MVVS adaptor

Maximum torque **

Silencer INT 58.01+MVVS adaptor

Fuel

Lubrication

14 HP/6400 RpM

11 PS/6000 RpM

15N/m / 6100 RpM

12.7N/m 5600 RpM

Unleaded 95-octane fuel

Oil with petrol in

mixture 1:40

Safety precautions:

1) Never use the engine for any manned vehicles.

2) When operating model planes, always follow the rules and laws in effect in your country.

3) The manufacturer declines all responsibility for all damages arising from the operation of models and other appliances driven
by MVVS 116cc engine.

4) Use always original spare parts.

5) Never tamper with the engine construction.

6) Before each flight check that all the propeller screws are tightened up and in good condition. If you use a spinner, check that it
is tightened up, too. When mounting the spinner always follow the assembly instructions.

7) Periodically check that the engine is firmly fixed to the engine mounts. Never start a loose engine!

8) Always use a balanced propeller! Always replace the propeller when damaged!

9) Make sure that no part of your body intersects the plane of the spinning propeller.

10) Always wear close-fitting, well-fastened clothes when starting or operating the running engine. Never wear loosely hanging
clothes (tie, scarf, etc.).

11) Never try to stop the engine by any part of your body.

12) Always stop the engine either by turning off the ignition switch or by completely closing the carburetor throttle valve.

13) Before starting the engine always make sure that the model is safely fixed in place and cannot start moving.

14) Fuel is combustible and therefore must be kept in an enclosed container at a safe distance from the engine when it is running.

15) When preparing fuel carefully follow the manufacturer’s or dealer’s instructions.

16) Small objects must be kept at a safe distance from the engine when it is running. Never throw any objects towards the spinning
propeller.

17) Be careful in choosing the location where you wish to start the engine. Avoid dusty or sandy areas.

18) Start the engine in well-ventilated areas only. Never start the engine indoors.

19) When starting the engine make sure that bystanders, especially children, are at a safe distance of at least 10 m.

20) The engine power output makes it possible to fly big models. Mal-operation of such models may cause serious damage. Start
using the MVVS 116cc in model planes only after you have mastered operating smaller models.

Selecting a suitable propeller

It is usually the case that propellers of the same dimensions coming from different manufacturers are not the same. Oftentimes not even
propellers of the same dimensions produced by a same manufacturer are not the same. The engine power is best utilized when the
propeller dynamics curve and engine power curve (revolutions/power output) intersect in the area of the engine top power output.
Unfortunately, no propeller manufacturer provides this information. Engine power output is also a variable quality. It depends above all
on the silencer used and can considerably vary. The situation is further complicated by environmental parameters (temperature and
atmospheric pressure in particular): low temperature and high pressure increase propellers’ input requirements by 20% in comparison
with input at hot weather.

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