A model of C class airship hull, when severed at its major section and provided with cylindric midbody of variable length, had its air resistance increased about in proportion to length of mid-body up to 3 diameters, and in about manner to be expected from increase of skin friction on this variable length. For greater length drag increased less and less rapidly.
The drag of C class airship Hull with varying length of cylindric midships
Nat. Advisory Committee Aeronautics, Report
1921
10 pages
6 Figs.
Report
English
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