H145 Auxiliary Fuel Tank System Enhances Range

Certified auxiliary fuel capacity for real-world operations.

BAM’s H145 Auxiliary Fuel Tank System adds 140 litres of usable fuel to extend range and endurance for time-critical and long-distance missions, without taking the aircraft out of its operational role.

The Auxiliary Fuel Tank System gives the H145 approximately 25 minutes of additional endurance and up to around 100 km of extra range — enough to reach a further scene, hold longer on station, or skip an intermediate refuelling stop. (Figures are estimates based on typical cruise fuel burn; actual performance depends on mission profile and conditions.)

BAM H145 Auxiliary Fuel Tank installed on RH aft cabin seat rails in an air ambulance interior — The Auxiliary Fuel Tank System installed on the RH aft seat rails of an H145 air ambulance, leaving the cabin clear for the mission.

How it works The system is built around a 140-litre foam-filled flexible fuel cell housed inside a carbon-fibre, vapour-proof container, mounted on the right-hand aft cabin seat rails and fixed at installation. A carbon-fibre filler panel replaces the RH aft window, and refuelling is handled through an external RH-side refuelling point. Once the main fuel drops below a set threshold, fuel transfers automatically to the main tanks by gravity feed — keeping crew workload to a minimum — with fuel level shown directly on the Helionix VMD.

Installation uses the Airbus provisions for internal long-range fuel tanks together with OEM-provided fittings, for a plug-and-play fit that integrates cleanly with the airframe.

BAM H145 Auxiliary Fuel Tank System, carbon-fibre fuel cell with transfer and refuelling lines — The BAM H145 Auxiliary Fuel Tank System — a 140-litre carbon-fibre fuel cell with automatic gravity-fed transfer

External right-hand refuelling point and carbon-fibre filler panel of the BAM H145 Auxiliary Fuel Tank — External refuelling point for the H145 Auxiliary Fuel Tank, set into the carbon-fibre panel that replaces the RH aft window.

Specifications

Aircraft: Airbus H145 (MBB-BK117 D-2) the system is also being certified for the D-3
Certification: EASA STC 10057357
Capacity: 140 litres — foam-filled flexible fuel cell
Container: carbon-fibre, vapour-proof
Mounting: RH aft cabin seat rails, via Airbus long-range fuel tank provisions
Fuel transfer: automatic, gravity-fed to main tanks
Refuelling: external RH-side refuelling point
Indication: fuel level on Helionix VMD
Performance: approx. +25 min endurance / up to ~100 km range (estimated)

See what extended range means in practice.
Use the interactive range map to estimate mission range gain from any starting point.

Open interactive range map →