Ground power unit (GPU) for the Leonardo AW139
Which portable GPU starts the Leonardo (AgustaWestland) AW139, a medium twin-engine helicopter widely used for offshore, SAR and EMS? Our recommendation, how to choose capacity, and a written quote within 24–48 h from Navirnet, exclusive distributor of Hawker Aero lithium GPUs.
Recommended GPU for the AW139: 26V
For the AW139 we recommend a 26V model: the GPU 2680 (92 Ah, 18 kg) or the GPU 26180 (180 Ah, 34 kg).
Its electrical system has low over-voltage protection, so a standard 28.5 V lithium unit is not suitable: it needs a 26 V DC GPU.
- Lithium iron phosphate (LFP): light, safe and long-lasting
- Supplied with charger and NATO aircraft cable
- Modular: two or more units in parallel for more power
Always check the starting requirements and ground power limits in your aircraft maintenance manual (AMM). We confirm the right model with every quote.
Three questions to pick the right unit
1 · Voltage: 26V or 28V
Most aircraft use a 28V system. Aircraft with low over-voltage protection (AW139, Sikorsky S-76D, Pilatus PC-6 / PC-12, Phenom, Eclipse) need a 26V unit.
2 · Capacity: 92 Ah or 180 Ah
The 92 Ah units (18–19 kg) are the easiest to carry. The 180 Ah units (34–35 kg, 5,500 A peak) give more starts per charge for larger aircraft.
3 · Parallel operation
All Hawker Aero units are modular: connect two or more in parallel to double or triple output and capacity, and still use each one on its own.
More detail in our guides: how to choose a ground power unit and lithium vs lead-acid vs diesel GPUs.
Frequently asked questions
Which GPU do I need for the AW139?
For the Leonardo (AgustaWestland) AW139, we recommend a 26V model: the GPU 2680 (92 Ah, 18 kg) or the GPU 26180 (180 Ah, 34 kg). Its electrical system has low over-voltage protection, so a standard 28.5 V lithium unit is not suitable: it needs a 26 V DC GPU.
Can a lithium GPU start the AW139?
Yes. Hawker Aero lithium iron phosphate (LFP) GPUs are designed to start turbine helicopters like the AW139. They give a clean, stable start, reduce thermal stress on the engine and save APU or battery cycles.
How many starts do I get per charge?
It depends on the outside temperature, the starter and how the engine is started. The 180 Ah models give roughly twice the energy of the 92 Ah models, and two or more units can be connected in parallel when you need more.
Do you ship to my country?
Navirnet supplies Hawker Aero GPUs worldwide from Spain (exclusive distributor). Tell us your aircraft and location and we will send you a written quote within 24–48 h.
Related aircraft
Get a quote for a GPU for your AW139
Tell us your AW139 variant, how many starts a day you need and your location. We reply in writing with the right model, specs and price.
- Written reply within 24–48 h
- Exclusive distributor of Hawker Aero
- Worldwide shipping