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GPU 1500/40 Twin 28V Aircraft Ground Power Unit

delivery time

upon request

Size and weight are important considerations for hand-portable aircraft start units. Situations exist where additional battery capacity and performance is required while retaining the essential benefits of mobility or ‘hand-portability’.


Designed to connect two units in parallel to create the GPU 1500/40 Twin.


The GPU 1500/40 Twin will deliver 80A continuous output when connected to utility power making this unit ideal for maintenance and lengthy pre-flight checks.


The GPU 1500/40 Twin can be split into separate modules for ease of transport and is designed to be carried on board for emergency power or turbine starting. This aircraft start unit is suitable for starting larger helicopters and business jets where larger turbines or turboprop aircraft require higher instant amperage and longer start cycles.


Each GPU is supplied with a power supply LED output monitor for load monitoring and diagnostics, and can be re-charged via its accessory port by any 24–28V DC aircraft power source, including the aircraft 28V DC bus connector.


Each GPU 1500/40 is fitted with solid state voltmeter with ‘push to view’ button to monitor battery voltage. A spring-loaded output cover ensures the aircraft start unit is cleared for air transportation. Supplied with Nato lead set, input leads and heavy-duty canvas protective jackets.

The battery isolator switch and sealed lead acid batteries ensure the GPU is cleared for air transportation. The GPU is supplied with a Nato lead set and input lead cable, and also has dedicated cable storage space. Each Coolspool Combination GPU can be used inside the hangar or outside on the ramp, either plugged in to an external supply input or utilising its own DC battery power for turbine starting.

  • High powered sealed lead acid AGM batteries

  • Cleared for air transportation

  • 80A, 28V DC Internal power supply/charger

  • Power supply LED status indicator

  • Corrosion resistant aluminium case with carry handle

  • Controls protected by twin front protection bars

  • Spring-loaded output connector cover

  • Auxiliary socket for plug-in accessories

  • Solid state voltmeter with ‘push to view’ feature

  • Double trolley

  • Heavy-duty canvas protective jackets

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