Operating instructions
MVVS 26 IFS
č
.: 3094IU
MVVS 26 IFS SP
č
.: 3094SP
MVVS 35 IFS
č
.: 3098I
Version 2.1
Before using the engine, carefully read these instructions
Congratulations on choosing the gas engine MVVS 26 ccm (35ccm).
MVVS 26 and 35 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
MVVS 26ccm
Bore
33 mm
Maximum power output **
3.8 PS/9000 RpM
Stroke
30.1 mm
Maximum torque **
3.1Nm/8000 RpM
Weight of complete engine
without ignition*
936 g
Fuel
Unleaded 95-octane fuel
Weight of ignition unit
165 g
Lubrication
Oil with petrol in mixture 1:40
RpM range
1400 – 9500
MVVS 35ccm
Bore
35.5 mm
Maximum power output **
4.1 PS/8500 RpM
Stroke
35.2 mm
Maximum torque **
3.8 Nm/7500 RpM
Weight of complete engine
without ignition*
1493 g
Fuel
Unleaded 95-octane fuel
Weight of ignition unit
165 g
Lubrication
Oil with petrol in mixture 1:40
RpM range
1400 – 9000
* 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.
Engine’s dimensions
A
mm
B
mm
C
mm
D
mm
E
mm
26 IFS
146
99
50
70
60
35 IFS
182
118
60
84
70
F
mm
G
mm
H
mm
I
mm
J
mm
26 IFS
31
4,3
M10x1
10
33
35 IFS
41
5,3
M10x1
10
45
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 droved by MVVS engine.
4)
Always use 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)
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.
8)
Periodically check that the engine is firmly fixed to the engine mounts. Never start a loose engine!
9)
Always use a balanced propeller! Always replace the propeller when damaged!
8)
Make sure that no part of your body intersects the plane of the spinning propeller.
