Aviation Event Management         Hobart GPU 400   Description: Hobart GPU-400 Solid State ground power units provide precisely regulated 28.5 volt DC service with minimum noise. These reliable solid state GPUs are equipped for engine starting in the current limiting “soft start” mode recommended by most airframe manufacturers. Specifically developed in response to customer needs, the GPU-400 supplies the fully regulated, dependable power required by today's more demanding aircraft. The GPU-400 delivers 400 amperes continuous to 1600 amperes peak for starting, and is available with a 14.25 volt DC option. Hobart GPU-400 series units . . . reliable power for your aircraft.