FLIGHT MANUAL
DYNALI HELICOPTER COMPANY
Edition N°3
DYNALI H2S January 2012
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15
Transmission
Main transmission and main transmission box MTG
Transmission by gearing R=2,43
Secondary transmission by 8 trapezoidal belts R=1.27
Main transmission shaft ..................................... hardened stainless steel AISI 431
Diameter ....................................................................................................... 35 mm
Free wheels in upper pulley, number :................................................................... 2
Dynali main transmission box : ……............1 conic helicoid spiral type gear R=35
Rear transmission and rear transmission box
Rear transmission by shaft. Cardan joint type coupling
Rear rotor transmission shaft........ hardened stainless steel AISI 431 diameter 12
Diameter ....................................................................................................... 12 mm
Rear transmission box: .........................................1 conic helicoid spiral type gear
Reduction ratio rear transmission box : N transmission shaft / N rear rotor ....... 1/2
Reduction ratio
N engine / N main rotor ................................................................................. 9,83/1
N rear rotor / N main rotor.............................................................................. 7,09/1
Power-plant
Engine........................................................................................... Subaru DS EJ25
Horizontally opposed « flat » 4 cylinders 4 stroke. Electronic injection.
Liquid cooled. “Dry” sump (separate oil tank).
Cylinder capacity....................................................................................... 2500 cm
³
Maximum power output................................................................................ 180 HP
Engine RPM at maximum power ............................................................ 5300 RPM
Fuel
Regular fuel...........................................................
95 or 98 octane automobile fuel
Occasional fuel ................................................................................AVGAS 100 LL
Note : AVGAS 100LL or Ethanol may be used as regular fuel subject to
modification of the injectors.
Hourly fuel consumption: ............................................................................... 27 L/h
Total fuel capacity: ............................................................................................ 90 L
Useable fuel capacity:.................................................................................... 87,5 L
Unusable fuel capacity..................................................................................... 2,5 L
Low fuel warning ............................................................. below 10L of useable fuel
Cooling and lubrication
Liquid engine coolant
Type ............................................................................................................... Glycol
Capacity : ............................................................................................................ 9 L
Engine oil (change every 6 months or 100 hours)
Type ..................... oil for gasoline engine, synthetic or semi-synthetic SAE 10W50
Capacity .......................................................................................................... 3,5 L