Editing Control line (section)

===Navy carrier===
<!-- Deleted image removed: [[Image:trostle bearcat lowspeed.jpg|thumb|320px|A "Bearcat" Navy Carrier model built/flown by Keith Trostle, with [[Flap (aircraft)|flap]]s deployed and [[tailhook]] extended in low-speed flight]] -->
Navy carrier is an event where semi-scale models of real [[Naval aviation|naval aircraft]] are flown. The event replicates the requirements of full-scale [[Carrier-based aircraft|carrier aircraft]], which need high speed for combat performance, and low speeds and toughness for safe carrier landings. Takeoff and landing are from a simulated [[aircraft carrier]] deck, with [[Arresting gear|arrestor wire]]s.

The aim of the flight is to complete a number of fast laps, flown as quickly as possible, followed by a number of slow laps, flown as slowly as possible. This is followed by the carrier deck landing, attempting to snag the arrestor wire. The score depends on the difference of the high and low speed, and the arrested landing. Carrier models usually have a third control line, worked by a finger trigger in the handle. This line allows the throttle setting of the engine to be controlled and the arrestor hook to be dropped. Often, a carrier model will have flaps. Unlike a stunt model, however these flaps are worked separately from the elevator. A large amount of flap is usually applied during the slow laps, and a large amount of line sweep is added to yaw the model out of the circle to maintain line tension at the very low ground speeds. Low speeds are frequently no faster than a fast walk, and when aimed into a light breeze forward motion may stop completely with the model hanging at a very high angle of attack from the propeller.