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Spoiler controls can be used for roll control (outboard or mid-span spoilers) or descent control (inboard spoilers). Some aircraft use spoilers in combination with or in lieu of ailerons for roll control, primarily to reduce adverse yaw when rudder input is limited by higher speeds. For such spoilers the term spoileron has been coined. In the ...
An early use of spoilers augmenting small ailerons, known as guide ailerons, was in the Northrop P-61 Black Widow night fighter. The spoilers allowed wider-span flaps for a lower landing speed. [3] The B-52 Stratofortress also had spoilers augmenting small ailerons, known as feeler ailerons. These ailerons provided control forces to the pilot.
It is a main part of their patent on flying. [1] Unlike modern control surfaces, they used wing warping . [ 2 ] In an attempt to circumvent the Wright patent , Glenn Curtiss made hinged control surfaces, the same type of concept first patented some four decades earlier in the United Kingdom .
The FAA publicly identified an “unsafe condition” that could result in a “loss of control” of certain Boeing 737 Max jets because of “nonconforming” installation of spoiler control wires.
Often, characteristics of both spoilers and air brakes are desirable and are combined - most modern airliner jets feature combined spoiler and air brake controls. On landing, the deployment of these spoilers ("lift dumpers") causes a significant reduction in wing lift, so the weight of the aircraft is transferred from the wings to the undercarriage.
The airbrakes or spoilers fitted to gliders often function both as landing aids, to adjust the approach angle, and to keep the aircraft's speed below its maximum permissible indicated airspeed in a vertical dive. Most modern combat aircraft are equipped with air brakes, which perform the same function as dive brakes. [1] [2]
Retired U.S. Airways captain John Cox gave his own inside scoop in a blog post for USA Today.
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