The CIRPAS Twin Otter in non-pressurized turbo-prop, twin-engine aircraft:

Payload Capacity: 1500 lbs.

Available Payload Power: 200 Ampere of 28 VDC, or 5600 Watts, of which up to 4000 watts may be inverted to 120V AC at 60 Hz.

Endurance: About 5 hours, fully loaded

Practical Mission Ceiling: 18,000 feet, 12,000 feet without oxygen.

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