• Thumbnail for Downwash
    In aeronautics, downwash is the change in direction of air deflected by the aerodynamic action of an airfoil, wing, or helicopter rotor blade in motion...
    3 KB (246 words) - 11:09, 9 February 2023
  • Downwash Ditch is a 1.4-kilometre (0.87 mi) long river (brook) and drainage ditch of the Pevensey Levels in the civil parish of Hailsham, Wealden District...
    2 KB (187 words) - 22:04, 12 November 2022
  • Thumbnail for Ferrari SF-23
    Prix, a major upgrade was introduce changing to sidepods to incorporate a downwash ramp design similar to Red Bull. As the year progressed Ferrari gain a...
    9 KB (334 words) - 11:31, 20 July 2024
  • Induced drag is related to the angle of the induced downwash in the vicinity of the wing. The grey vertical line labeled "L" is the force required to counteract...
    22 KB (2,431 words) - 14:03, 31 July 2024
  • Thumbnail for Mach tuck
    movement of the centre of pressure of the wing, and a decrease in wing downwash velocity at the tailplane, both of which cause a nose down pitching moment...
    11 KB (1,317 words) - 06:50, 7 September 2024
  • flight visibility due to airborne particles, especially from helicopter downwash Brownout (album), studio album by American band Head Set Brownout (band)...
    907 bytes (146 words) - 20:38, 21 July 2024
  • planform. Wingtip vortices are associated with induced drag, the imparting of downwash, and are a fundamental consequence of three-dimensional lift generation...
    21 KB (2,648 words) - 02:31, 29 September 2024
  • Thumbnail for Brownout (aeronautics)
    terrain. Intense, blinding dust clouds stirred up by the helicopter rotor downwash during near-ground flight causes significant flight safety risks from aircraft...
    26 KB (2,748 words) - 23:45, 6 September 2024
  • Thumbnail for NOTAR
    pressure air through two slots on the right side of the tailboom, causing the downwash from the main rotor to hug the tail boom, producing lift, and thus a measure...
    6 KB (738 words) - 00:55, 17 February 2024
  • 3-dimensional effects of airflow not experienced by infinite airfoils: downwash and induced drag. http://www.aerospaceweb.org/question/aerodynamics/q0167...
    541 bytes (56 words) - 04:44, 30 August 2022
  • Fugitive dust clouds (brownouts) stirred up by downwash from military helicopters....
    18 KB (2,110 words) - 02:03, 17 September 2024
  • Thumbnail for Boeing Vertol BV-347
    would be tilted to 85 degrees to minimize interference with the rotor downwash. The BV-347 made its first flight in Phase I configuration on May 27, 1970...
    9 KB (792 words) - 01:53, 7 September 2024
  • Thumbnail for Taxiing
    speeds are typically 16 to 19 kn (30 to 35 km/h; 18 to 22 mph). Rotor downwash limits helicopter hover-taxiing near parked light aircraft. The use of...
    8 KB (969 words) - 21:03, 30 August 2024
  • Thumbnail for V formation
    directly behind another, it will reverse the flapping pattern to counter the downwash force. Through an experiment with ibises, researchers found that flying...
    12 KB (1,384 words) - 19:40, 10 July 2024
  • Thumbnail for Tuft (aeronautics)
    2016 – via Google Books. Wadcock, Alan J. (October 2008). "Rotorcraft Downwash Flow Field Study to Understand the Aerodynamics of Helicopter Brownout"...
    2 KB (173 words) - 18:25, 7 March 2024
  • {w}{a}}\right)^{\frac {2\gamma }{\gamma -1}}} where w {\displaystyle w} is the downwash speed and a {\displaystyle a} is the sound speed. C p = p − p ∞ γ 2 p ∞...
    14 KB (2,513 words) - 07:45, 1 August 2024
  • Thumbnail for Bird flight
    birds flying in V patterns, so as to avoid the detrimental effects of the downwash due to the leading bird's flight. The most obvious adaptation to flight...
    47 KB (5,627 words) - 12:15, 29 June 2024
  • Thumbnail for AERMOD
    Model Enhancements) which is an algorithm for modeling the effects of downwash created by the pollution plume flowing over nearby buildings. AERMOD was...
    7 KB (683 words) - 23:46, 4 March 2022
  • Thumbnail for Vortex ring state
    new topological state of the surrounding flow field, induced by its own downwash, and suddenly loses lift. Since vortex rings are a surprisingly stable...
    14 KB (1,572 words) - 19:15, 29 August 2024
  • or water obstructing the creation of wingtip vortices and interrupting downwash behind the wing. A wing generates lift by deflecting the oncoming airmass...
    17 KB (2,099 words) - 22:17, 17 August 2024
  • Thumbnail for Tailplane
    effect when spun, while the McDonnell Douglas T-45 Goshawk suffered excess downwash from the wing when the flaps were deployed, necessitating a small "SMURF"...
    12 KB (1,664 words) - 02:47, 14 April 2024
  • Thumbnail for Cornu helicopter
    by steerable vanes at either end of the machine intended to direct the downwash of the rotors. The Cornu helicopter is reported to have made a number of...
    4 KB (413 words) - 01:33, 7 May 2024
  • rotors was surrounded by a system of four pivotable vanes to direct its downwash, and linked to a control stick for the pilot, this provided control of...
    3 KB (171 words) - 03:03, 24 March 2023
  • Thumbnail for Coandă effect
    Tail boom with Coandă Slots. 4 Vertical stabilizers. 5 Direct jet thruster. 6 Downwash. 7 Circulation control tailboom cross-section. 8 Anti-torque lift....
    44 KB (5,459 words) - 19:52, 1 February 2024
  • Thumbnail for Sikorsky CH-53 Sea Stallion
    timeframe. In particular, there were concerns that the high levels of downwash produced by the XC-142A would render shipborne operations impractical....
    82 KB (9,111 words) - 19:28, 27 September 2024
  • Thumbnail for Bell Boeing V-22 Osprey
    commonality with the Sikorsky CH-53K King Stallion. The V-22 has a maximum rotor downwash speed of over 80 knots (92 mph; 150 km/h), more than the 64-knot (74 mph;...
    173 KB (15,153 words) - 16:44, 1 October 2024
  • generated and consequentially the performance of the rotor; amount of downwash around it, and noise levels the rotor generates. It is also used to compare...
    4 KB (571 words) - 19:29, 2 November 2023
  • Thumbnail for Mil Mi-8
    increased yaw authority from the upwards advancing tail rotor blades into the downwash. The increase of the airspeed flowing over the rotor blades increases overall...
    61 KB (6,419 words) - 21:35, 29 September 2024
  • Thumbnail for Sikorsky CH-54 Tarhe
    One danger that its crews had to maintain awareness of was the strong downwash generated by the rotors; nearby tents were particularly at risk of being...
    19 KB (2,001 words) - 01:35, 8 September 2024
  • Thumbnail for Mil Mi-24
    now rotated up on the side towards the front of the aircraft, into the downwash of the rotor, which increased its efficiency. A number of other design...
    116 KB (11,137 words) - 17:45, 4 October 2024