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The sortable table below contains the three sets of ISO 3166-1 country codes for each of its 249 countries, links to the ISO 3166-2 country subdivision codes, and the Internet country code top-level domains (ccTLD) which are based on the ISO 3166-1 alpha-2 standard with the few exceptions noted.
Alexander Zverev ( German pronunciation: [alɛkˈsandɐ ˈtsfeːʁɛf]; [4] [5] [6] born 20 April 1997) is a German professional tennis player. He has been ranked by the ATP as high as world No. 2. Zverev's singles career highlights include a gold medal at the 2020 Tokyo Olympics, and titles at the 2018 and the 2021 ATP Finals.
- Stability
- Mechanism
- Rolling on A Heading
- Name
- Accidents
- See Also
- External Links
In aircraft design, Dutch roll results from relatively weaker positive directional stability as opposed to positive lateral stability. When an aircraft rolls around the longitudinal axis, a sideslip is introduced into the relative windin the direction of the rolling motion (due to the lateral component of lift when the wings are not level). Strong ...
The most common mechanism of Dutch roll occurrence is a yawing motion which can be caused by any number of factors. As a swept-wing aircraft yaws (to the right, for instance), the left wing becomes less-swept than the right wing in reference to the relative wind. Because of this, the left wing develops more lift than the right wing causing the airc...
Dutch roll is also the name (considered by professionals to be a misnomer) given to a coordination maneuver generally taught to student pilots to improve their "stick-and-rudder" technique. The aircraft is alternately rolled as much as 60 degrees left and right while rudder is applied to keep the nose of the aircraft pointed at a fixed point. More ...
The origin of the name Dutch roll is uncertain. However, it is likely that this term, describing a lateral asymmetric motion of an airplane, was borrowed from a reference to similar-appearing motion in ice skating. In 1916, aeronautical engineer Jerome C. Hunsaker published: "Dutch roll – the third element in the [lateral] motion [of an airplane] i...
On October 19, 1959, a Boeing 707 on customer-acceptance flight, where the yaw damper was turned off to familiarize the new pilots with flying techniques, a trainee pilot's actions violently exacer...On August 12, 1985, Japan Airlines Flight 123, a Boeing 747SR, exhibited a Dutch roll in combination with phugoid cycles after losing all hydraulics following the loss of its vertical stabiliser du...On March 6, 2005, Air Transat Flight 961, an Airbus A310, was involved in a Dutch roll incident following structural failure of the rudder at cruising altitude after departure from Juan Gualberto G...On May 3, 2013, a McConnell AFB, KS (USAF) KC-135R, 63-8877, flown by a Fairchild AFB, Washington aircrew, broke up in flight about eleven minutes after taking off from Manas Air base in Kyrgyzstan...Articles
1. How to Halt Dutch Roll from FltPlan at the Wayback Machine(archived 2015-07-22) 2. What Is Dutch Roll, And How Do You Prevent It?
Videos
1. This is not how planes fly at the Wayback Machine (archived 2020-05-07) A Dutch roll during a test flight of a Tupolevairliner. Anecdotal information points to yaw damper malfunction as the cause. Aircraft landed safely. 2. Dutch Roll animation 3. Autoflight #12 Yaw Damper[permanent dead link]
A wiki ( / ˈwɪki / ⓘ WI-kee) is a form of online hypertext publication that is collaboratively edited and managed by its audience directly through a web browser. A typical wiki contains multiple pages that can either be edited by the public or limited to use within an organization for maintaining its internal knowledge base .
ChatGPT is a chatbot and virtual assistant developed by OpenAI and launched on November 30, 2022. Based on large language models (LLMs), it enables users to refine and steer a conversation towards a desired length, format, style, level of detail, and language. Successive user prompts and replies are considered at each conversation stage as context.
The number π ( / paɪ /; spelled out as " pi ") is a mathematical constant that is the ratio of a circle 's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics.
James Earl Carter Jr. (born October 1, 1924) is an American politician and humanitarian who served as the 39th president of the United States from 1977 to 1981. A member of the Democratic Party, Carter was the 76th governor of Georgia from 1971 to 1975, and a Georgia state senator from 1963 to 1967.
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