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       54 "Miser" Stirling Cycle Engines built by The Students at North Dakota State College of Science of Wahpeton, North Dakota  | 
  
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       5 "PowerHouse" 4-Cycle Engines built by The Students at Pitt Community College of Winterville, North Carolina  | 
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       built by Bob Verhaeghe of Merritt, North Caroli  | 
  
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       built by Art Bilderback of Garden Grove, California  | 
    
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       built by Peter Lysne of Albuquerque, New Mexico  | 
  
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       built by Mike Gombert of Colorado Springs, Colorado  | 
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       built by Tony Adams of Guthrie, Angus - Scotland 3/08  | 
  
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       built by Roger Cherrington of New Ulm, Minnesota 4/08  | 
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       built by Dana Hall of Summerfield, Florida 3/09  | 
  
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