Vertical Flight Society just published excellent video narrated by Cherles Seibel himself about Seibel helicopters. Described are:
- Seibel S-1 (design study on tiltrotor)
- Seibel S-2 (design study on coaxial helicopter)
- Seibel S-3 (single-seat helicopter with CG control mechanism...
bell aircraft corporation
cessnaaircraftcompany
cg control
cold war
helicopter
helicopter division (cessnaaircraftcompany)
pre-world war ii
seibel
seibel helicopter
seibel helicopter company
tiltrotor
united states
united states air force
united states army
world war ii
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