A teardrop turn is a method of reversing the course of an
aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engine ...
or vessel so that it returns on its original path, travelling in the opposite direction, and passes through a specified point on the original path.
Concept
;Aircraft: The teardrop turn has been described as a difficult maneuver which provides little margin for error, especially as an aviation procedure where a misjudgment can result in a stall and crash.
The name comes from the overhead view of the track, which resembles an idealized teardrop. Teardrop turns are commonly used during
air shows to make several passes over the runway, flying in opposite directions. Aircraft can use the teardrop turn to return to a
fix while
descending, a procedure called a teardrop penetration.
Teardrop penetrations are typically performed under
instrument flight rules
In aviation, instrument flight rules (IFR) is one of two sets of regulations governing all aspects of civil aviation aircraft operations; the other is visual flight rules (VFR).
The U.S. Federal Aviation Administration's (FAA) ''Instrument Fly ...
.
;Watercraft:
Ship
A ship is a large watercraft that travels the world's oceans and other sufficiently deep waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, research, and fishing. Ships are generally distinguished ...
s and power
boat
A boat is a watercraft of a large range of types and sizes, but generally smaller than a ship, which is distinguished by its larger size, shape, cargo or passenger capacity, or its ability to carry boats.
Small boats are typically found on inl ...
s generally use one of two types of teardrop turn to recover a
man overboard
"Man overboard!" is an exclamation given aboard a vessel to indicate that a member of the crew or a passenger has fallen off of the ship into the water and is in need of immediate rescue. Whoever sees the person's fall is to shout, "Man overboa ...
: the
Williamson turn or the
Scharnow turn, which differ primarily in the direction of the path around the teardrop and the distance from the point of interest when the manoeuvre is begun.
See also
Man overboard rescue turn A man overboard rescue turn (or person overboard) is a shiphandling manoeuvre usually implemented immediately upon learning of a person having gone overboad into the sea. To bring a vessel closer to the person's location, implementations of the pri ...
References
External links
* http://www.altairva-fs.com/training/ava_training_ifr_pt.htm
* http://thenauticalsite.com/NauticalNotes/Manouev/MyMan-Lesson03-Manoeuvres.htm {{Webarchive, url=https://web.archive.org/web/20130303173153/http://thenauticalsite.com/NauticalNotes/Manouev/MyMan-Lesson03-Manoeuvres.htm , date=2013-03-03
* https://www.dco.uscg.mil/Portals/9/DCO%20Documents/5p/CG-5PC/CG-CVC/CVC3/cfsac/meetings/2016/Finalchapter5.pdf
Aerial maneuvers