Aeronautics and astronautics – Aircraft – lighter-than-air – Airships
Reexamination Certificate
2006-07-15
2011-11-08
Lee, Benjamin P (Department: 3641)
Aeronautics and astronautics
Aircraft, lighter-than-air
Airships
C244S024000, C244S125000
Reexamination Certificate
active
08052082
ABSTRACT:
An optimized lighter-than-air vehicle or airship incorporating a frame104, internal propulsion124, perforated covering102and lifting-gas cells110is disclosed. Optimization features include variations on a Stratford Ramp, means to control the boundary layer210, absence of unnecessary protuberances and means to reduce the bow wave. A transportable version utilizing a flexible frame310and keels314is also disclosed along with a means for rapid descent and landing. The operating concept reduces velocity requirements which, in turn, reduce weight and size requirements.
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