H175
The multirole super medium
In service since 2015, Airbus’ H175 belongs to the super-medium class of helicopters – combining long range with smooth flight qualities. It takes customers to the next level in terms of comfort, efficiency, and cost-effectiveness.
Proven in the harshest conditions
Contributing to the H175’s competitive edge is its capacity to perform long-range missions at a fast cruise speed of 155 kts while maintaining a large payload. With a standard fuel tank capacity of over 2 tonnes, the H175 offers flexibility to operators for range and endurance. The H175 also excels in hot climates with an extensive power reserve and heli-deck performance (PC1) at maximum takeoff weight in ISA+20°C conditions.
Powered by two PT6C 67E versions of Pratt & Whitney Canada’s highly reliable turboshaft PT6 engines, the H175 benefits from excellent performance – even in one engine inoperative (OEI) scenarios – and large power reserves, which support efficiency and safety during takeoff and landing, rig approach, hovering and hoisting.
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Saving lives at the centre of a typhoon
The Hong Kong Government Flying Service (GFS) utilised its H175 helicopters for the challenging search and rescue operation of the "Fujing 001" occupants during Typhoon Siampa.
The pilot’s first choice
The H175 is equipped with the state-of-the-art Helionix® avionics suite, contributing to greater operational efficiency across a wide range of environments. Its intuitive human interface increases situational awareness and enhances flight envelope protection, and robust system redundancy.
Key features include:
- Recovery (loss of reference)
- Automatic Management in Case of Engine Failure
- Vortex ring state and recovery
- Go-around (including OEI)
- Recovery (loss of external reference)
- Automatic OEI management
- Control Flight Into Terrain (CFIT) @150 feet
- Vortex prevention
- Speed protection (speed not to exceed)
- Assisted helipad take-off
- +HTAWS offshore modes
The Airbus-designed Helionix avionics system is incorporated on the H135, H140, H145, and H160 families of Airbus helicopters.
Designed with safety in mind
Text: The helicopter complies with – or exceeds – the latest CS29 airworthiness standards, with the oil and gas version incorporating all of the safety and mission recommendations of the IOGP (International Association of Energy Producers).
To achieve these standards, the helicopter has fully redundant systems; crashworthiness protection; energy- absorbing landing gear, seats, structure and fuel tanks; and emergency floatation devices, which can be inflated in flight manually or automatically at ditching.
The emergency floatation system is certified at Sea State 6 conditions, with the high water-line reducing the risk of capsizing.
Among a number of safety features, the H175 includes:
- 4-axis autopilot; Unrivalled pilot assistance with the Helionix® avionics suite, with features such as vortex ring prevention, recovery in case of loss of external reference, etc.
- Health and usage monitoring system (HUMS);
- Helicopter terrain awareness and warning system (HTAWS), including offshore modes
- Traffic collision avoidance system (TCAS II);
- Extra large push out windows, including helicopter emergency egress lighting (HEEL)
Fast, smooth and comfortable
The Airbus H175 combines high speed (above 155 kts) with smooth flight qualities, excellent payload and cabin comfort.
The H175’s cabin provides 12 cubic metres, plus 2.3 cubic metres for the cargo, the largest volume in its class. Passengers benefit from a spacious cabin, a panoramic view from the aircraft and greater light. And, it has the most volume and window surface per passenger in its class, providing greater visibility (panoramic view) and enhanced comfort during operations. A maximum of four passengers can be seated per row. Vibration and sound levels are low, even at high cruise speeds, contributing to a smooth flight.
Frequently asked questions (FAQ)
H175
What is the Airbus H175 used for?
The Airbus H175 is a super-medium twin-engine helicopter designed primarily for offshore oil and gas crew transport, search and rescue (SAR), law enforcement, emergency medical services (EMS), corporate transport, and utility operations.
How many passengers can the H175 carry?
The H175 can accommodate up to 18 passengers in a high-density offshore configuration, 12 passengers in a corporate layout, or 6-12 passengers in a VIP configuration. For SAR missions, it carries up to 12 crew members with stretcher capacity. The multi-mission floor in the cabin enables rapid reconfiguration.
What is the H175's range and endurance?
The H175 has a range of approximately 1,160 km (626 nm) with standard fuel tanks, the longest range in its class. Maximum endurance is 6 hours 6 minutes. With over 2 tonnes of fuel capacity and a fast cruise speed of 155 knots, the H175 delivers exceptional radius of action for long-range offshore and SAR missions.
How big is the cabin of the H175?
The H175’s cabin provides 12 cubic metres, plus 2.3 cubic metres for the cargo, the largest volume in its class.
What configurations are available for the H175?
The H175 is available in multiple configurations: offshore transport, search and rescue (SAR), law enforcement, military, emergency medical services, and government and private transport.
What engine powers the H175?
The H175 is powered by two Pratt & Whitney Canada PT6C-67E turboshaft engines, each delivering 1,776 horsepower. The proven and reliable PT6 engine family provides excellent performance in one-engine-inoperative (OEI) scenarios and large power reserves for takeoff, landing, and hoisting operations.
What avionics does the H175 have?
The H175 features the advanced Helionix avionics suite, which contributes to greater operational efficiency across a wide range of environments. Its intuitive human interface increases situational awareness and enhances flight envelope protection, and robust system redundancy.
What makes the H175 suitable for offshore operations?
The H175 meets the latest IOGP 690/699 safety standards, offering full Category A performance and Sea State 6 operating capability. It comfortably accommodates up to 17 passengers for offshore missions.
How reliable is the H175?
The helicopter demonstrates excellent flying rates and has proven its reliability in demanding offshore operations, particularly in North Sea, Brazil, Mexico and Asian energy markets.
Topics in focus
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