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Old 25th Jan 2017, 10:51
  #14 (permalink)  
WHBM
 
Join Date: Oct 2002
Location: London UK
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Hydrogen fuel (Lockheed Tristar was the lead type for this idea).

Ekranoplan

https://en.wikipedia.org/wiki/Caspian_Sea_Monster

Short Mayo Composite

https://en.wikipedia.org/wiki/Short_Mayo_Composite


Scheduled service city-to-city helicopters
Last edited by WHBM; 25th Jan 2017 at 11:03.
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