The Hobart 90C20P is a diesel-powered ground power unit designed to supply dependable 400 Hz electrical power to aircraft during ground operations. Its 90 kVA output makes it suitable for airport, airline and FBO applications requiring an independent mobile power source.

General:
• Rated output of 90 kVA / 72 kW
• 115/200 VAC, three-phase, 400 Hz power
• Cummins 6BTA5.9C six-cylinder diesel engine
• Brushless aircraft generator
• Designed for continuous aircraft ground-power operation
• Mobile trailer-mounted configuration
• Towbar for convenient ramp movement
• Aircraft output cable and connector
• Engine and generator protection systems
• Operator controls and instrumentation
• Suitable for aircraft servicing, maintenance and engine-start support

Hobart Ground Power is now a legacy ITW GSE brand, and documentation and product support remain available through ITW GSE.

The available records specifically associate the 90C20P with a Cummins 6BTA5.9C engine, while comparable Hobart 90 kVA models confirm the 115/200 V, three-phase, 400 Hz output configuration used by this product family.