Rotor Tip Weight (Centrifugal Force)

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SUMMARY

The centrifugal force at the tip of a rotor with a diameter of 35 feet rotating at 392 RPM can be calculated using the formula F = m * ω² * r, where ω is the angular velocity in radians per second and r is the radius in feet. The pilot's assertion that the weight at the rotor tip would not be measured in tons is incorrect; the calculation reveals significant forces at play. Additional factors such as blade thickness and weight may influence the overall dynamics but are secondary to the centrifugal force calculation.

PREREQUISITES
  • Understanding of centrifugal force calculations
  • Familiarity with rotational dynamics
  • Knowledge of basic physics formulas
  • Ability to convert RPM to radians per second
NEXT STEPS
  • Research the formula for calculating centrifugal force in rotating systems
  • Learn how to convert RPM to angular velocity
  • Explore the impact of blade design on rotor dynamics
  • Investigate the relationship between rotor diameter and centrifugal force
USEFUL FOR

Aerospace engineers, rotorcraft designers, and physics students interested in the dynamics of rotating systems.

Heloego
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What formula would one use to determine the centrifugal force at the tip of a rotor of 35ft diameter, rotating at 392rpm?
Would any other factors be necessary, such as blade thickness, weight, etc?

A pilot I work with doesn't believe the weight at the rotor tip would be measured in tons.
I was given the formula many years ago by an instructor, but it has been long forgotten. :-)
 
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Never mind. Just found it. (sheepish)
 

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