Editing Thrust reversal (section)

===Propeller-driven aircraft===
[[File:US Navy 060403-N-0499M-151 A Sailor performs maintenance to an E-2C Hawkeye.jpg|thumb|Variable-pitch propellers of an [[Grumman E-2 Hawkeye|Grumman E-2C Hawkeye]]]]
Propeller-driven aircraft generate reverse thrust by changing the angle of their [[Variable-pitch propeller (aeronautics)|controllable-pitch propeller]]s so that the propellers direct their thrust forward. This reverse thrust feature became available with the development of controllable-pitch propellers, which change the angle of the propeller blades to make efficient use of engine power over a wide range of conditions. Reverse thrust is created when the propeller pitch angle is reduced from fine to negative. This is called the beta position.<ref>{{Cite web|url=https://www.aopa.org/news-and-media/all-news/2017/march/pilot/turbine-reverse-thrust|title=Reverse thrust: Stopping with style|date=3 January 2017|access-date=31 August 2020|archive-date=8 September 2024|archive-url=https://web.archive.org/web/20240908042114/https://www.aopa.org/news-and-media/all-news/2017/march/pilot/turbine-reverse-thrust|url-status=live}}</ref>

While piston-engine aircraft tend not to have reverse thrust, [[turboprop]] aircraft generally do.<ref>FAA: Airplane Flying Handbook (FAA-H-8083-3B) Chapter 14: Transition to Turbopropeller-Powered Airplanes</ref> Examples include the [[PAC P-750 XSTOL]],<ref>{{cite web|title=P-750 XSTOL Specifications|url=http://www.aerospace.co.nz/aircraft/p-750-xstol/specifications|publisher=Pacific Aerospace|access-date=9 September 2013|archive-date=1 February 2020|archive-url=https://web.archive.org/web/20200201013748/https://www.aerospace.co.nz/aircraft/p-750-xstol/specifications|url-status=live}}</ref> [[Cessna 208 Caravan]], and [[Pilatus PC-6 Porter]].

One special application of reverse thrust comes in its use on multi-engine [[seaplane]]s and [[flying boat]]s. These aircraft, when landing on water, have no conventional braking method and must rely on [[Zigzag|slaloming]] and/or reverse thrust, as well as the [[Drag (physics)|drag]] of the water in order to slow or stop. In addition, reverse thrust is often necessary for maneuvering on the water, where it is used to make tight turns or even propel the aircraft in reverse, maneuvers which may prove necessary for leaving a dock or beach.{{Citation needed|date=July 2013}}