- Отрасли: Aviation
- Number of terms: 16387
- Number of blossaries: 0
- Company Profile:
Aviation Supplies & Academics, Inc. (ASA) develops and markets aviation supplies, software, and books for pilots, flight instructors, flight engineers, airline professionals, air traffic controllers, flight attendants, aviation technicians and enthusiasts. Established in 1947, ASA also provides ...
The amount of time, measured in seconds, needed for an electric motor to accelerate from standstill to its final no-load speed. Time constant is measured when the motor is connected to a power source having the correct voltage, phase, and frequency.
Industry:Aviation
The amount of time, measured in seconds, needed for the voltage across a capacitor to rise to 63.2% of the source voltage. The time constant is determined by the resistance and the capacitance of the circuit.
The formula for capacitive time constant is:
TC = R C
TC = Time constant in seconds
R = Resistance in ohms
C = Capacitance in farads
Industry:Aviation
The amount of time, measured in seconds, needed for the voltage across a capacitor to rise to 63.2% of the voltage applied to the circuit. Time constant is determined by the amount of both resistance and capacitance in the circuit.
Industry:Aviation
The amount of time, usually measured in degrees of crankshaft rotation, an intake or exhaust valve remains off its seat.
Industry:Aviation
The amount of torque produced by an electric motor when the rotor first begins to turn. Series-wound motors have a high starting torque, and shunt-wound motors have a low starting torque.
Industry:Aviation
The amount of torque produced by the rotor of an electric motor when it is fully energized with the correct voltage, but the rotor is held so it cannot turn.
Industry:Aviation
The amount of torque produced when one pound of force is applied one foot from the point of rotation.
Industry:Aviation
The amount of weight each square foot of a helicopter rotor blade supports. Blade loading is found by dividing the total weight of the helicopter by the area of the rotor blades.
Blade loading is not to be confused with disk loading, which is the total weight of the helicopter divided by the area of the disk swept by the rotor blades.
Industry:Aviation
The amount of work done when one kilogram of force acts through a distance of one meter.
Industry:Aviation
The amount of work done when one watt of power is used for one second. One watt-second is equal to one joule.
Industry:Aviation
