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T-tails were common in early jet aircraft. Designers were worried that an engine failure would otherwise damage the horizontal tail. The T-tail is very common on aircraft with engines mounted in nacelles on a high-winged aircraft or on aircraft with the engines mounted on the rear of the fuselage, as it keeps the tail clear of the jet exhaust.
Normal flight (above), Deep stall condition - T-tail in "shadow" of wing (below) A Schweizer SGS 1-36 being used for deep-stall research by NASA over the Mojave Desert in 1983. A deep stall (or super-stall) is a dangerous type of stall that affects certain aircraft designs, notably jet aircraft with a T-tail configuration and rear-mounted ...
The AASI Jetcruzer was an American single turboprop light civil transport made by Advanced Aerodynamics and Structures Inc. The Jetcruzer had an unusual configuration, with a single turboprop engine driving a pusher propeller, a prominent canard, and fins mounted at the ends of its swept wings. The plane has seating for up to six people ...
T-tail – The horizontal stabiliser is mounted on top of the fin, creating a "T" shape when viewed from the front. T-tails keep the stabilisers out of the engine wake, and give better pitch control. T-tails have a good glide ratio, and are more efficient on low speed aircraft. However, the T-tail has several disadvantages.
Aircraft flight mechanics are relevant to fixed wing (gliders, aeroplanes) and rotary wing (helicopters) aircraft.An aeroplane (airplane in US usage), is defined in ICAO Document 9110 as, "a power-driven heavier than air aircraft, deriving its lift chiefly from aerodynamic reactions on surface which remain fixed under given conditions of flight".
The advantages of this new configuration come from the aerodynamic lift. The additional aerodynamic lift can be equal to the 30-80% of the total weight of the marine vehicle. This means a lower hydrodynamic lift needed, therefore a lower chine and keel wetted length and a decreased hydrodynamic drag.
Even if the driving mutation identified in the study could be undone, “it still wouldn’t bring back the tail.” The new findings may also shed light on a type of neural tube defect in embryos ...
In aircraft with high-mounted tailplanes, like the F-101 Voodoo, recovery was especially difficult because the tailplane was placed directly in the wing wake during the pitch-up, causing deep stall (although the T-tail was meant to prevent pitch-up from starting in the first place). Deployment of the braking parachute and a considerable height ...