Pilot Operating Handbook
H3 Sport 135 HP
SECTION 7
SYSTEMS
Dynali_POH_H3 Sport 135 HP Rev. 3.3 – Issue date 15.01.2021 Page
64
7.2
ENGINE & ENGINE MOUNT
The engine mount is made from stainless steel. It is mounted on two silentblocs which
damp the vibrations throughout the airframe and is
suspended on two rods which
act as a clutch by lowering
(tensioning the belts)
or raising the engine
(releasing
the belts). When tensioned, the system is automatically locked (rods are on the other
side of the tensioner axis).
The
Rotax 912ULS-I-BB 135HP
, supplies the most appropriate power to the helicopter
thanks to the ECU electronically controlling the injection system linked to bigger
cylinders’ bore. The improvements made on the basic engine are performed within
Dynali Sprl. The benefits of this version are the high torque and a comfortable power
margin, without increasing the aircraft’s weight. Furthermore, the fuel consumption
stays close to 22 L/h. Therefore, it is the solution with the best Power/Weight and
Power/Fuel consumption ratio.
H3 Sport
135 HP
Engine
Rotax 912ULS-I-BB
Bore
1600 cm
³
Specificity
Injection M150 & big bore
Cooling
Water, oil and air
NOTE
The Rotax 900 series are among the best engines in the world. However, Rotax
does not guarantee its engines when these are used in rotary wing aircraft.
7.3
MAIN TRANSMISSION
The drive pulley is bolted directly onto the engine shaft.
Four V-belts transfer the movement to the receiving (driven) pulley which houses one
freewheel. The freewheel is oil lubricated and can bear a torque of 660 Nm. It drives
the rotor while the engine is running and keeps it free of movement when the engine
is stopped or idle (failure or landing).
Содержание H3 Sport 135 HP
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