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How does speed affect aircraft performance?
If the speed is increased above that for the best angle of climb although the climb angle will decrease, the rate of climb will initially increase. If the aircraft is required to fly at different speed, the rate of climb will be reduced.
What is aircraft speed?
A typical commercial passenger jet flies at a speed of about 400 – 500 knots which is around 460 – 575 mph when cruising at about 36,000ft. This is about Mach 0.75 – 0.85 or in other words, about 75-85% of the speed of sound. Generally speaking, the higher the aircraft flies, the faster it can travel.
What is aircraft performance data?
Performance data is information pertaining to takeoff, climb, range, endurance, descent, and landing.
How is aircraft performance calculated?
Mach Number:
- Formula: Mach Number = Aircraft Speed/Speed of Sound (dependent on altitude)
- Example: Aircraft is flying at 30,000′ Speed of sound at 30,000′ = 589.4 knots. The airspeed is 489.3 knots.
- Calculate: 489.3/589.5 = 0.83 Mach.
What reduces aircraft performance?
as air density decreases (higher density altitude), aircraft performance decreases. A decrease in air density means a high density altitude; an increase in air density means a lower density altitude. However, a known density occurs for any one temperature and pressure altitude.
How does temperature affect aircraft performance?
High air temperatures affect the physics of how aircraft fly, meaning aircraft takeoff performance can be impaired on hot days. The amount of lift that an airplane wing generates is affected by the density of the air. The lower the air density, the faster an airplane must travel to produce enough lift to take off.
What affects aircraft performance?
The primary factors most affected by performance are the takeoff and landing distance, rate of climb, ceiling, payload, range, speed, maneuverability, stability, and fuel economy.