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  2. Headwind and tailwind - Wikipedia

    en.wikipedia.org/wiki/Headwind_and_tailwind

    The aircraft is said to have 7.5 knots of crosswind and 13 knots of headwind on runway 06, or 13 knots of tailwind on runway 24. Aircraft usually have maximum tailwind and crosswind components which they cannot exceed. If the wind is at eighty degrees or above it is said to be full-cross.

  3. QBlade - Wikipedia

    en.wikipedia.org/wiki/QBlade

    The 1st online version, released in 2010, was received with positive remarks which led to the continuation of the development. After the integration of a turbulent wind field generator, a Vertical Axis Wind Turbine (VAWT) module and a structural Euler-Bernoulli beam module (QFEM) an updated version (v0.8) of the software was released on 9 May ...

  4. Crosswind - Wikipedia

    en.wikipedia.org/wiki/Crosswind

    The headwind is about 22 knots, and the crosswind is about 13 knots. [1] To determine the crosswind component in aviation, aviators frequently refer to a nomograph chart on which the wind speed and angle are plotted, and the crosswind component is read from a reference line. Direction of travel relative to the wind may be left or right, up or ...

  5. Ground speed - Wikipedia

    en.wikipedia.org/wiki/Ground_speed

    Ground speed is the horizontal component of the velocity of an aircraft relative to the Earth’s surface, also referred to as "speed over the ground". [1] It is vital for accurate navigation that the pilot has an estimate of the ground speed that will be achieved during each leg of a flight.

  6. Airfield traffic pattern - Wikipedia

    en.wikipedia.org/wiki/Airfield_traffic_pattern

    An Airbus A330-300 of Turkish Airlines on short final to Heathrow Airport, immediately before landing.. An airfield traffic pattern is a standard path followed by aircraft when taking off or landing while maintaining visual contact with the airfield.

  7. E6B - Wikipedia

    en.wikipedia.org/wiki/E6B

    The ease of use of electronic calculators means typical flight training literature [2] does not cover the use of calculators or computers at all. In the ground exams for numerous pilot ratings, programmable calculators or calculators containing flight planning software are permitted to be used.

  8. Takeoff - Wikipedia

    en.wikipedia.org/wiki/Takeoff

    A headwind will reduce the ground speed needed for takeoff, as there is a greater flow of air over the wings. Typical takeoff air speeds for jetliners are in the range of 240–285 km/h (130–154 kn; 149–177 mph).

  9. List of wind power consulting companies - Wikipedia

    en.wikipedia.org/wiki/List_of_wind_power...

    Some wind industry associations, such as the Global Wind Energy Council, the World Wind Energy Association, and WindEurope, provide publicly available membership directories on their websites.