Copyright © A. Filippone (1999-2003). All Rights Reserved.
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Data Base, Aerodynamic

Rotor Performance Data


Table 1: Typical Rotational Speeds
Device Speed (rpm)
Large marine propeller 40-100
Wind Turbine (3 blades) 25-50
Aeronautic propeller
Helicopter (hover) [1] 120-400
Helicopter (forward flight) 120-400
Helicopter (tail rotors ) 1,000-3,000
Axial compressor
Gas turbine 10,000 – 30,000


Table 2: Typical Rotor Loads
System W/S [N/m²]
Wind Turbine [2] 15-60
Aeronautic Propeller
VTOL tilt-rotor 120-140
Helicopter, single rotor [3] 50-70
Helicopter, tandem rotor [4] 30-40


Table 3 below reports a summary of Equivalent Disk Loading for various hover configurations.

Table 3: Rotor-craft Hover Data
Aircraft Type W/S (N/m²)
Bell V22 Osprey Tilt Rotor 560
Sikorski S64 Crane 496
Westland Lynx Utility 364
Harrier GR3 Jet lift 216

Notes

[1] Depends on the number of blades.
[2] Depends on wind speed.
[3] Example: McDonnell-Douglas Apache AH-64
[4] Example: CH-46E

Selected References

  • Stepniewski WZ, Keys CN. Rotary-Wing Aerodynamics, Dover Publ Inc., New York, 1984.


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Copyright © A. Filippone (1999-2003). All Rights Reserved.