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A hydraulic cantilever tail lift on the back of a truck Four stages of deployment on an ambulance tail lift Control for a tail lift. A tail lift (term used in the UK, also called a "liftgate" in North America) is a mechanical device permanently installed on the rear of a work truck, van, or lorry, and is designed to facilitate the handling of goods from ground level or a loading dock to the ...
Tommy Gate is an American brand of hydraulic liftgate, or tail lift, manufactured by Woodbine Manufacturing Company. The company was formed in 1965 by Delbert "Bus" Brown and its production facility is located in Woodbine, Iowa. [1] [2]
Stabilator or all-moving tail: In transonic flight shock waves generated by the front of the tailplane render any elevator unusable. An all-moving tail was developed by the British for the Miles M.52 , but first saw actual transonic flight on the Bell X-1 ; Bell Aircraft Corporation had included an elevator trim device that could alter the ...
Tail lift or ramp – Ambulances can be fitted with a tail lift or ramp in order to facilitate loading a patient without having to undertake any lifting. This is especially important where the patient is obese or specialty care transports that require large, bulky equipment such as a neonatal incubator or hospital beds .
Grumman F-14 Tomcat jet fighter during a takeoff, with stabilators deflected upwards. A stabilator is a fully movable aircraft horizontal stabilizer.It serves the usual functions of longitudinal stability, control and stick force requirements [1] otherwise performed by the separate parts of a conventional horizontal stabilizer (which is fixed) and elevator (which is adjustable).
Since the tail is operating in the flowfield of the wing, changes in the wing incidence cause changes in the downwash, but there is a delay for the change in wing flowfield to affect the tail lift, this is represented as a moment proportional to the rate of change of incidence: ˙
Above statement is untrue (suspect Zepro employee aded this) The Tail Lift was first designed in 1948 by Ted Ratcliff and developed this in (If I remember right Edgeware or that area of Middlesex [now London]). His business still exists today as RatcliffPalfinger still in the premises in Welwyn Garden City, Hertfordshire UK.
Any such negative lift generated by the tail must be compensated by additional lift from the main wing, thus increasing wing area, drag, and weight requirements. On a three-surface aircraft, the pitch trim forces can be shared, as needed in flight, between the foreplane and tailplane.