Luffships are new LTA aircraft (mainly airships) based on designs by our founder, Charles Luffman.
They currently include:
- Classic unidirectional (UD) types with a generally cigar (C) shaped body of revolution aerostat
- Buoyant aircraft with widened/winged hybrid (H) or slender fish shaped (F) aerostat forms
- Omni-directional (O-D) types with spherical (S), lenticular (L) or natural (N) aerostat forms, and
- Tethered (T) or captured aerostats.
Concept drawings, specifications and associated supporting documents are available for each type.
To review the projects click on the links following:
- Classic Style & Other UD types
- Omni-directional types
- Other Designs and Possibilities
Note: Information about C, F, H, N and S aerostat forms is withheld for the time being to focus on new L form O-D types.
If more information about any of the different types is desired, it’s available on request.
Airships are propeller driven motor powered dirigible (so steerable/controllable) balloons! For comparison of the different types (C, L & S) see the illustration right – drawn to scale with equal volumes. The C & L forms have an aspect, slenderness or fineness ratio = 4 (= length/diameter for C types, but = diameter/height for L types). This ratio also is known as the prismatic coefficient (a block ratio).
However, when considering aerodynamic drag, overall size has an effect; where the C form is somewhat bigger than the others, because it volumetrically is a significantly less efficient gas container – so has greater wetted surface area. This should not be overlooked!