Modern Rigids
There are no rigid airships flying today. The Zeppelin company refers to their NT ship as a rigid but this is a misnomer. The envelope shape is retained in part by super-pressure of the lifting gas, and so the NT is more correctly classified as a semi-rigid.
Read more about this topic: Rigid Airship
Famous quotes containing the word modern:
“I ask especially that no state shall, by law or otherwise, authorize the return of the saloon, either in its old form or in some modern guise.”
—Franklin D. Roosevelt (1882–1945)