In naval aviation, a bolter occurs when an aircraft attempting an arrested landing on the flight deck of an aircraft carrier touches down, but fails to catch an arrestor cable and come to a stop.[1][2] Bolter aircraft accelerate at full throttle and become airborne in order to go-around and re-attempt the landing.[2]
Prior to the development of the angled flight deck, aircraft carrier landing areas ran along the axis of the ship. If an aircraft failed to catch an arrestor cable on the aft (rear) of the ship, it would still need to be stopped prior to hitting aircraft spotted (parked or taxiing) on the forward half of the deck.[2] With aircraft spotted on the forward half of the flight deck, there was not enough room for an aircraft to become airborne again after missing the arrestor wires. Stopping an aircraft that failed to engage an arrestor cable was accomplished with either a wire barrier rigged amidships and raised to catch the aircraft's landing gear, or a net barricade that would engage the aircraft's wings. Either method often resulted in damage to the aircraft and required time to disengage. The introduction of jet aircraft for carrier operations in the early 1950s, with their greater mass and higher approach speeds, exacerbated the problem.[2]
The British-developed angled flight deck solved the problem of aircraft that failed to engage an arrestor wire, and created the routine option for aircraft to bolter.[2] By angling the landing area off the ship's axis, thus avoiding obstructions forward of the landing area, aircraft that failed to arrest – that bolter – simply accelerate down the landing area and become airborne again. Bolter aircraft then climb back to landing pattern altitude and sequence in with other landing aircraft to re-attempt the landing.[3] These bolter aircraft are said to be in the "bolter pattern".[3]
The British were the first to describe aircraft that failed to arrest as bolters.[4] When an aircraft bolters on a United States Navy carrier, the Landing Signal Officer (LSO) often transmits "bolter, bolter, bolter" over the radio. United States Navy LSOs grade each carrier landing attempt on a scale of 0–5.[5] Assuming the approach was safe and at least average, a bolter is graded as 2.5.[5] For unsafe or below average approaches that result in bolter, a grade of 2 is assigned.[5]
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Transcription
See also
References
- ^ "OPNAV INSTRUCTION 3710.7T" (PDF). US Navy. Archived from the original (PDF) on February 27, 2009. Retrieved 10 October 2009.
- ^ a b c d e "The angled flight deck". Sea Power Centre Australia. Royal Australian Navy. Retrieved 22 January 2014.
- ^ a b Llinares, Rick (2006). Strike: Beyond Top Gun: U.S. Naval Strike and Air Warfare Center. Zenith Imprint. p. 25. ISBN 0-7603-2525-1. Retrieved 10 December 2008.
- ^ Brown, Charles H. (1999). Dark Sky, Black Sea: Aircraft Carrier Night and All-Weather Operations. Naval Institute Press. p. 107. ISBN 1-55750-185-8. Retrieved 10 December 2008.
- ^ a b c Llinares, Strike: Beyond Top Gun, p. 23
External links
Media related to Bolters (aviation) at Wikimedia Commons
This page was last edited on 28 April 2024, at 06:37