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Blown flaps may refer specifically to those systems that use internal ductwork within the wing to direct the airflow, or more broadly to systems like upper surface blowing or nozzle systems on conventional underwing engine that direct air through the flaps. Blown flaps are one solution among a broader category known as powered lift, which also ...
First required in 1994, NASCAR now mandates that cars in the Cup and Xfinity series have two roof flaps positioned near the rear of the vehicle, with the left flap oriented perpendicular to the length of the car and the right flap angled 45° counter-clockwise (when looking downward) from the left flap. [1] [2] Trucks in the Craftsman Truck ...
The set point of the tumble flap is adjusted by an electrical or vacuum-activated servo mechanism which is under the control of the engine management system.Tumble flaps are open or closed depending on engine operating states (related to engine speed and load), engine temperatures, combustion modes (characterized by air-fuel ratio), catalytic converter heating or cold start active or inactive etc.
Truck with bright blue mud flaps on the rear wheel wells and bumper A mudflap or mud guard is used in combination with the vehicle fender to protect the vehicle, passengers, other vehicles, and pedestrians from mud and other flying debris thrown into the air by a rotating tire on a wheeled vehicle.
Semi-trailer aerodynamic devices are devices affixed to semi-trailers, for the purpose of reducing aerodynamic drag caused by air turbulence.The two major types of device in use are trailer skirts (or side skirts), affixed to the underside of trailers, and trailer tails (or boat tails, or rear fairings), affixed to the rear.
The main problem with the circulation control wing is the need for high energy air to be blown over the wing's surface. Such air is often bled from the engine; however, this drastically reduces engine power production and consequently counteracts the purpose of the wing. Other options are taking the exhaust gases (which must first be cooled) or ...
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