Search results
Results From The WOW.Com Content Network
Drum brakes are typically described as either leading/trailing (also called "single leading") or twin leading. [5] Rear drum brakes are typically of a leading/trailing design (for non-servo systems), or primary/secondary (for duo servo systems), the shoes being moved by a single double-acting hydraulic cylinder and hinged at the same point. [5]
The most common design is a leading-trailing design. More exotic design had four, eight or sixteen shoes. [4] Some motorcycles used finned and/or vented housings for additional cooling, the first of which was AJS. [2]
These locomotives were to have two outside cylinders, inside frames and motion, generous piston valves, and identical left/right cylinder castings, and they shared three coupled wheel sizes, two standard boilers and a single size of leading/trailing wheel.
Mechanical trail is certainly one of the most important variables in determining the handling characteristics of a bicycle. A trail of zero may give some advantages: [23] the influence of the position of the center of pressure of wind forces coming from the side is eliminated; the wheel flop effect (see below) is eliminated
The axle does, however, have sideways play built in to accommodate tight curves. Cartazzi's design causes the weight of the locomotive to exert a self-centring action on the trailing wheels. [10] The Cartazzi design was also sometimes applied to driving wheel axles on longer wheelbase locomotives. [11]
Trailing edge flaps extended on the right on a typical airliner (an Airbus A310-300). Leading edge slats are also extended, on the left.. A flap is a high-lift device used to reduce the stalling speed of an aircraft wing at a given weight.
The moment of the leading edge in the airflow helps to move up the trailing edge, which decreases the stick force. The down moving aileron also adds energy to the boundary layer. The edge of the aileron directs air flow from the underside of the wing to the upper surface of the aileron, thus creating a lifting force added to the lift of the wing.
The leading edge is the point at the front of the airfoil that has maximum curvature (minimum radius). [10] The trailing edge is the point on the airfoil most remote from the leading edge. The angle between the upper and lower surfaces at the trailing edge is the trailing edge angle.