1. During the war, the British operated over 200 nonrigid airships. 2. Another is the plastic, nonrigid French or whistle tip catheter. 3. Subsequent airships for Navy use were of a nonrigid design. 4. The Soviet Union had several semirigid and nonrigid airships. 5. The second category of transformations allow'elastic'or'nonrigid 'transformations. 6. Unlike the rigid design, the nonrigid airship's gas envelope has no compartments. 7. A second and similar approach to the symmetry of nonrigid molecules is due to Altmann. 8. With larger volume and increased passenger capacity, it is the largest manned nonrigid airship in China at present. 9. While this was a severe blow to the Soviet airship program, they continued to operate nonrigid airships until 1950. 10. For comparison, today's nonrigid airships, such as the familiar Goodyear blimp, average about 200 feet in length.
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