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She was a thousand feet long, with eight diesel engines mounted four a side, with reversible propellers.
Later advances included full-feathering and reversible propellers.
It is propelled by two reversible propellers powered by twin 230-horsepower, turbo-charged Porsche engines.
As chief test pilot, Mr. Fisher tested more than 4,000 military aircraft and helped develop the reversible propeller for use as a brake.
The aircraft's performance was comparable to that of a conventional B-47, and its reversible propellers shortened the landing roll, but the USAF did not follow up the idea.
Due to features such as double-slotted flaps, stacked brakes, and reversible propellers, the G.222 has excellent short landing capabilities and is able to land in as little as 1,800 feet.
If the pitch can be set to negative values, the reversible propeller can also create reverse thrust for braking or going backwards without the need of changing the direction of shaft revolutions.
The B-29's reversible propellers were insufficient to slow the aircraft adequately, and with both pilots standing on the brakes, Bockscar made a swerving 90-degree turn at the end of the runway to avoid running off the runway.
Driven by 2 semi-submerged, supercavitating controllable, reversible propellers, achieved speeds in excess of 96 knots (approximately 110 mph) in the Gulf outside of St. Andrews Bay in Panama City, Florida.
