Abstract
Aircraft accessory-power transmission systems utilizing hydraulic pumps and motors are shown to be more efficient than those using pneumatic turbines driven by compressor bleed. The hydraulic system shows significant advantages in terms of both engine maximum thrust and cruise fuel consumption. A convertible hydraulic unit used as a turbojet starter motor and as an engine-driven hydraulic pump offers weight and performance advantages which further increase the value of hydraulics for all aircraft accessory-power systems.
Issue Section:
Research Papers
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