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      Headwind  
      
      
      by Don Stewart 
       
      
      
        
      
      
        
      
        
      
      The prototype Headwind was built over a 
      period of 5 months and was first flown on March 28, 1962. The airplane 
      flew well right off the drawing board but in the intervening years, many 
      structural (to simplify and make it easier to build) and aerodynamic 
      improvements have been made to the design so that now the only part of the 
      original design still used is the engine mount and the portion of the 
      fuselage between the cockpit and the stabilizer. Everything else is new. 
       
      In the forty some years that the Headwind has been in existence, many 
      examples have been built all over the world. Well over one hundred 
      airplanes are now in service powered by a variety of engines, however, 
      only the Volkswagen engine is shown on the plans. No other engine data is 
      published. 
       
      The Headwind was the first design to use the Volkswagen engine in the 
      United States and much development work was required to get the engine to 
      it's full potential as an aircraft engine. The most important development 
      in the engine work was the design and patenting of a propeller speed 
      reducing unit (PSRU) to allow the engine to developed it's full 
      horsepower.  
      
      
            
             
              
               
               
               specifications 
 
              
                
                powerplant 
                propeller 
                length 
                height 
                wing span 
                wing area 
                seats 
                empty weight 
                
                useful load 
                gross weight 
                fuel capacity 
                range | 
                
                VW 1774 Horsepower: 55 
                hp 
                Great 
                American  
                
                17' 0" 
                
                5' 9" 
                
                28' 3" 
                
                110.95 Sq. Ft. 
                1 
                
                x 
                x 
                
                x 
                
                x 
                
                Endurance 2 hours | 
               
             
            
            performance 
            
             
            
              
                
                takeoff distance, 
                ground roll 
                rate of climb 
                max speed 
                cruise speed 
                landing distance, ground roll 
                
                
                service ceiling | 
                
                x300ft 
                
                650 fpm 
                
105 mph 
                
                85 mph 
                
                400ft 
                x | 
               
             
            
            limiting and recommended speeds
             
            
              
                
                design manoeuvring speed (Va) 
                never exceed speed (Vne) 
                stall, power off (Vsl) 
                landing approach speed  | 
                
                
                x 
                
                110 mph 
                
                38-42 mph 
                x | 
               
             
            All specifications are based on manufacturer's 
            calculations  | 
               
              
 
      Construction Notes:  
      Built by Don Gregory Mission Hills, California  
      Flight Characteristics:  
      Cub type single seater. Docile, forgiving, no surprises. Flies like a 
      Champ or Citabria  
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