Speed of the air of a hovering helicopter

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SUMMARY

The discussion focuses on calculating the speed of the air pushed down by a helicopter hovering 10 meters above the ground, weighing 6230 kg, with rotors measuring 14.6 meters in diameter. The solution involves applying principles of impulse and momentum to determine the airspeed. The key variables include the helicopter's weight, rotor diameter, and the height of hover, which are essential for solving the problem accurately.

PREREQUISITES
  • Understanding of impulse and momentum principles in physics
  • Basic knowledge of fluid dynamics
  • Familiarity with equations of motion
  • Ability to perform calculations involving area and volume
NEXT STEPS
  • Study the principles of impulse in physics
  • Learn about fluid dynamics and airflow around rotating blades
  • Explore calculations involving the area of a circle for rotor dimensions
  • Investigate the relationship between weight, lift, and airspeed in helicopter flight
USEFUL FOR

Students studying physics, particularly those focusing on mechanics and fluid dynamics, as well as aerospace engineers and anyone interested in the principles of helicopter flight dynamics.

nowayn
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Homework Statement


A helicopter is hovering 10m above the ground, weighs 6230kg and the rotors are 14,6m in diameter. Which speed does the air have that the rotors are pushing down?

The Attempt at a Solution


i really have no idea where to begin but the chapter has to do with impulse so i assume its solved using that in some way.
 
Physics news on Phys.org
If the speed is v, how much air is going through the rotor every second? What is the momentum of this air?
 

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