In This Issue| Volume 23, ISSUE 2, P8-9, March 2004

Download started.


Airfoils for helicopters

      As we discussed in the last article, fixed-wing aircraft designers typically start with an airfoil that is optimized for the flight condition at which the aircraft spends most of its time or the one that is the most demanding aerodynamically. Then they use leading and trailing edge high-lift devices to reshape the airfoil for low-speed operations, such as takeoff and landing. Unfortunately, the helicopter designer has no such luxury. Although some experimentation has occurred with airfoil-changing devices, none have been able to cope with the extreme centrifugal loads and very rapid aerodynamic changes experienced by the working portions of a main rotor blade.
      To read this article in full you will need to make a payment

      Purchase one-time access:

      Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
      One-time access price info
      • For academic or personal research use, select 'Academic and Personal'
      • For corporate R&D use, select 'Corporate R&D Professionals'


      Subscribe to Air Medical Journal
      Already a print subscriber? Claim online access
      Already an online subscriber? Sign in
      Institutional Access: Sign in to ScienceDirect