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2026 STEWART & STEVENSON TMAC250
Ground Power Units Ground Support Equipment
A ground power unit (GPU) attaches to an airplane or helicopter’s onboard electrical system, providing it with clean, reliable DC and/or AC power.
Read More (About Ground Power Units)Ground power units (GPUs) are equipment used at airports large and small around the world as part of a broader category of ground support equipment (GSE). Ground support staff use GSE including baggage carts, chocks, dollies, stairs, tow bars, and tow tractors in addition to GPUs to carry out airport operations and services for aircraft is on the ground.
A GPU attaches to an airplane or helicopter’s onboard electrical system, providing it with clean, reliable DC and/or AC power, typically in the form of 28V DC or 400Hz AC power. Depending on the GPU type, power is generated by a diesel, gas, battery, or electrical source. For customers buying a GPU for use with a diverse range of aircraft, units are available providing both 28V DC and 400Hz ability.
In addition to starting engines, GPUs are used to run air conditioning, lights, avionics, and other components while grounded. GPUs are also useful for performing maintenance, repair, and overhaul duties and when completing aircraft-related software updates.
New and used GPUs are available in fixed and mobile designs complete with durable, protective enclosures that safeguard their internal components from various elements. Mobile GPUs include those mounted on wheeled carts and on pull-type trailers. You’ll find GPUs in use in hangars, on ramps, at remote field strips, and in other environments where aircraft are serviced and stored.
Before purchasing a GPU, it’s a good idea to formulate a detailed plan for how you’ll use the GPU so you can make the best decisions on capacity, form factor, and other considerations. Other factors include the unit’s construction and long-term durability, and its compatibility with your specific aircraft. Ease of use, environmental friendliness, and a unit’s rated noise output are still other issues to weigh. In addition to integrated LCD displays and status indicator lights, GPUs may include wireless remote monitoring, a parking brake, and built-in storage space for tools and test instruments.
You’ll find a selection of new and used ground power units for sale every day on AviationTrader.co.au.
This monthly repayment estimate is provided by Overdrive Commercial Funding Pty Ltd (Australian Credit License: 389328) This estimate is based on a Chattel Mortgage, which is only available where the purchaser of the item intends to use the item for primarily commercial use. The term of this loan is based 60 months with 30% residual & subject to qualifying commercial assets and credit criteria. Fees and charges are not included in this estimate and may apply. If the item is a vehicle and is not listed with a drive away price, any repayment estimate does not include additional costs, such as stamp duty and other government charges. The term of this loan is 60 months. This estimate should be used for information purposes only and is not an offer of finance on particular terms. This repayment estimate is the estimated lowest repayment available from Overdrive Commercial Funding Pty Ltd’s panel of lenders and products for this specific item each day, and includes several assumptions about the item, purchaser, and loan specifics. All loans are subject to eligibility criteria and Overdrive Commercial Funding Pty Ltd loan approval process. A specific quote including details of all fees and charges, or loans for items with primarily or wholly personal use can be obtained via overdrivefunding.com.au or by calling 1800 954 124.