Lifting power ofhelicopter depends upon hovering
speed of blades (@), length ofblades (1) and density
ofair (p). how many times lifting power will increase
if hovering speed is increased two times.
Answers
Answer:
The helicopter belongs to the flight machine category with the highest operational efficiency because it does not need special take-off and landing grounds with expensive utilities and logistics equipment. For the short and medium range, the flight efficiency of helicopters is comparable with those of the airplanes. It is able to hover, fly sideward, backward, forward, and perform other desirable maneuvers in civilian field like sea and mountain rescue, police surveillance, and firefighting; or in military missions such as battlefield surveillance, troop transport, assault, and antitank operations. So far with the help of helicopters, lives of over a million of people were saved. In the last years, the results obtained in the scientific research of many aeronautical disciplines has allowed for large increase in the flight dynamics, control, navigation, and lift capabilities of helicopters.
Explanation:
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