PPRuNe Forums - View Single Post - Sikorsky X2 coaxial heli developments.
Thread: Sikorsky X2 coaxial heli developments.
View Single Post
Old 8th December 2007 | 22:30
  #100 (permalink)  
Graviman
 
Joined: Nov 2004
Posts: 1,334
Likes: 0
From: Cambridgeshire, UK
Dave, i'm impressed with that Rieseler RII - 250KIAS back in the '30s!
Graviman is offline  
Reply
0