load factor

Thân thiện

The pilot monitors the aircraft's load factor during a steep turn.

Definition

Noun 1. A measure of structural stress in flight: In aeronautics, the load factor is the ratio of the total aerodynamic force (lift) acting on an aircraft to the aircraft's actual weight. It is a dimensionless number, often expressed in multiples of the gravitational constant "g," indicating the force experienced by the aircraft's structure and occupants. 2. A capacity utilization metric: In other fields like engineering, computing, or transportation, the load factor can represent the ratio of the average load to the peak or maximum possible load over a specific period, measuring efficiency or utilization.

Usage Examples

• Aeronautics:
  • During a sharp turn, the aircraft's load factor increased to 3g, meaning the wings were producing lift equal to three times the plane's weight.
  • The pilot must ensure maneuvers do not exceed the aircraft's maximum permissible load factor to prevent structural damage.
• General Engineering/Operations:
  • The power plant's load factor for the quarter was 75%, indicating good utilization of its generating capacity.
  • Airlines aim for a high passenger load factor to maximize revenue on each flight.

Advanced Usage

• Limit Load Factor: The maximum load factor an aircraft is designed to withstand without permanent deformation.
• Ultimate Load Factor: A higher load factor (often 1.5 times the limit load factor) that the structure must support without failure, incorporating a safety margin.
• Gust Load Factor: The increase in load factor caused by sudden wind gusts during flight.

Variants and Related Words

• Load (n/v): The weight or force carried or supported. To place a weight or burden onto something.
• Factor (n): A circumstance, fact, or influence that contributes to a result. In mathematics, a number or quantity that when multiplied with another produces a given number or expression.
• Utilization Factor: A related term often used interchangeably in non-aeronautical contexts to describe the ratio of actual output to potential output.

Synonyms

• G-load (specific to aeronautics)
• Stress factor (in structural contexts)
• Utilization rate (in operational contexts)

Related Phrases

• To pull g's: A pilot's phrase meaning to subject the aircraft and oneself to a high load factor (e.g., "The fighter pilot pulled 6 g's in the dive.").
• Design load factor: The load factor for which an aircraft's structure is primarily designed.

Học thuật

Noun

1. (aeronautics) the ratio of an external load to the weight of the aircraft (measured in g)