Experimental and theoretical assessment of the helicopter ground vortex phenomenon
    
  
 
 
  
  
    
    
        Experimental and theoretical assessment of the helicopter ground vortex phenomenon
    
  
Date
    
    
        2002
    
  
Authors
  Boer, J.F.
  Hermans, C.
  Pengel, K.
Journal Title
Journal ISSN
Volume Title
Publisher
    
    
        National Aerospace Laboratory NLR