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Powertrain

Assembly

Twin turboshafts feeding a common gearbox, so a single engine failure does not end the flight. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Powertrain parts and their functions

6 top-level parts · 46 parts in total · full bill of materials below
Powertrain parts diagram: 1 turboshaft engine, 2 main gearbox, 3 tail gearbox, 4 freewheel unit, 5 fuel system, 6 rotor brake. 46 parts in 6 top-level items.
Powertrain parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Turboshaft Engine 6 parts 2× Turboshaft engines
2 Main Gearbox 4 parts 1× Main gearbox
3 Tail Gearbox 4 parts 1× Tail gearbox
4 Freewheel Unit 2× Freewheel units
5 Fuel System 3 parts 1× Crashworthy fuel
6 Rotor Brake 1× Rotor brake

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
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Bill of materials for Powertrain

6 top-level lines · 23 rows shown · 46 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Turboshaft Engine 6 parts air-ambulance-helicopter-turboshaft 2× 2 10 assembly
1.1 Compressor air-ambulance-helicopter-compressor 1× 2 · part
1.2 Combustor air-ambulance-helicopter-combustor 1× 2 · part
1.3 Power Turbine air-ambulance-helicopter-power-turbine 1× 2 · part
1.4 FADEC air-ambulance-helicopter-fadec 1× 2 · part
1.5 Ball Bearing ball-bearing 4× 8 · part
1.6 Oil Seal oil-seal 2× 4 · part
2 Main Gearbox 4 parts air-ambulance-helicopter-main-gearbox 1× 1 12 assembly
2.1 Helical Gear Pair gear-pair 3× 3 · part
2.2 Gearbox Housing gearbox-housing 1× 1 · part
2.3 Ball Bearing ball-bearing 6× 6 · part
2.4 Oil Seal oil-seal 2× 2 · part
3 Tail Gearbox 4 parts air-ambulance-helicopter-tail-gearbox 1× 1 5 assembly
3.1 Helical Gear Pair gear-pair 1× 1 · part
3.2 Gearbox Housing gearbox-housing 1× 1 · part
3.3 Ball Bearing ball-bearing 2× 2 · part
3.4 Oil Seal oil-seal 1× 1 · part
4 Freewheel Unit air-ambulance-helicopter-freewheel 2× 2 · part
5 Fuel System 3 parts air-ambulance-helicopter-fuel-system 1× 1 6 assembly
5.1 Fuel Cell air-ambulance-helicopter-fuel-cell 2× 2 · part
5.2 Fuel Pump air-ambulance-helicopter-fuel-pump 2× 2 · part
5.3 Fuel Valve air-ambulance-helicopter-fuel-valve 2× 2 · part
6 Rotor Brake air-ambulance-helicopter-rotor-brake 1× 1 · part

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Where the powertrain is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Air Ambulance Helicopter

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $500–$50k. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Weichai Power
weichai.com ↗ 		Weifang, CN Diesel & power engines 50 units 12–16 wks
🇮🇳Cummins India
cumminsindia.com ↗ 		Pune, IN Diesel engines 50 units 12–16 wks
🇨🇳Yuchai
yuchai.com ↗ 		Yulin, CN Diesel engines 50 units 12–16 wks
🇮🇳Kirloskar Oil Engines
koel.co.in ↗ 		Pune, IN Diesel & gas engines 50 units 12–16 wks
🇮🇳Ashok Leyland
ashokleyland.com ↗ 		Chennai, IN Engines & commercial vehicles 50 units 12–16 wks