Holding (aeronautics)

In aviation, holding (or flying a hold) is a maneuver designed to delay an aircraft already in flight while keeping it within a specified airspace.

Implementation

A holding pattern for instrument flight rules (IFR) aircraft is usually a racetrack pattern based on a holding fix. This fix can be a radio beacon such as a non-directional beacon (NDB) or VHF omnidirectional range (VOR). The fix is the start of the first turn of the racetrack pattern. Aircraft will fly towards the fix, and once there will enter a predefined racetrack pattern. A standard holding pattern uses right-hand turns and takes approximately 4 minutes to complete (one minute for each 180 degree turn, and two one-minute straight ahead sections). Deviations from this pattern can happen if long delays are expected; longer legs (usually two or three minutes) may be used, or aircraft with distance measuring equipment (DME) may be assigned patterns with legs defined in nautical miles rather than minutes. Less frequent turns are more comfortable for passengers and crew. Additionally, left-hand turns may be assigned to some holding patterns if there are airspace or traffic restrictions nearby.

Hold

Hold may refer to:

Hold (title)

Hold (or Hauld) is a title of nobility, used in Viking Scandinavia and England.

History

Holds were described as "noblemen of exalted rank" in Viking Northumbria by Frank Stenton, with a wergild of 4000 thrymsas, equivalent to a king's high-reeve. Hold is described as a title just below the earl in Oxford Dictionary of Surnames.

References

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Grappling hold

A grappling hold (commonly referred to simply as a hold; in Japanese referred to as katame-waza, 固め技, "grappling technique") is a specific grappling, wrestling, judo or other martial arts grip that is applied to an opponent. Holds are principally used to control the opponent, and to advance in points or positioning. Holds may be categorized by their function such as clinching, pinning or submission, while others can be classified by their anatomical effect: chokehold, joint-lock or compression lock.

Clinch hold

A clinch hold (also known as a clinching hold) is a grappling hold which is used in clinch fighting with the purpose of controlling the opponent. In wrestling it is referred to as the tie-up. The use of a clinch hold results in the clinch. Clinch holds can be used to close in on the opponent, as a precursor to a takedown or throw, or to prevent the opponent from moving away or striking effectively. Typical clinch holds include: