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In aviation, in Australia, Canada, New Zealand, South Africa, the United Kingdom and elsewhere, HASELL or alternatively HASEL, is a standard mnemonic to prompt a series of checks prior to carrying out many types of manoeuvres, such as stalls, spins, spiral dives or aerobatics. [1] The HASEL acronym stands for: [1] Height; Area; Security; Engine ...
In a stall turn the plane goes upward, decelerates, yaws 180° under stall, and comes down nearly the same path it goes up, as if it gets hammered on the head. To perform a stall turn; From level flight input up elevator and reduce power until the aircraft stalls. The angle, speed, and abruptness at which stall occurs depends on the aircraft.
The aircraft begins at the dot, and pulls into a vertical climb. The small angled line at the top indicates a stall turn (without indicating the orientation after the turn). The plane then descends, pulls into horizontal flight, and ends at the small vertical line. The hammerhead turn, stall turn, or Fieseler is an aerobatics turn-around maneuver.
A United flight and an Alaska Airlines flight were forced to perform a last-minute go-around and abort their landing after a Southwest plane remained on their runways at SFO. Source: KTVU FOX 2 ...
Pugachev's Cobra maneuver is one of the tests for supermaneuverability, here performed by an Su-27. Supermaneuverability is the capability of fighter aircraft to execute tactical maneuvers that are not possible with purely aerodynamic techniques. Such maneuvers can involve controlled side-slipping or angles of attack beyond maximum lift. [1]
The DizzyFIX is a home medical device designed to assist in the treatment of benign paroxysmal positional vertigo (BPPV) and its associated vertigo. [1] The device is a head-worn representation of semi-circular canals. The device is filled with fluid and a particle representing the otoconia (loose hard particles) associated with BPPV.
A slip can also be a piloting maneuver where the pilot deliberately enters one type of slip or another. Slips are particularly useful in performing a short field landing over an obstacle (such as trees, or power lines), or to avoid an obstacle (such as a single tree on the extended centerline of the runway), and may be practiced as part of ...
The Rockwell-Messerschmitt-Bölkow-Blohm X-31 is an experimental jet aircraft designed to test fighter thrust vectoring technology. It was designed and built by Rockwell and Messerschmitt-Bölkow-Blohm (MBB), as part of a joint United States and German Enhanced Fighter Maneuverability program to provide additional control authority in pitch and yaw, for significantly more maneuverability than ...