Part 1 of Essay
INDEX PROLOGUE 2 TYPES OF AIRSHIP 2 RIGID AIRSHIP 2 NONRIGID AIRSHIP 3 HISTORY OF RIGID AIRSPS ....

Part 2 of Essay
.... be flown against the wind. TYPES OF AIRSHIP Two basic types of airship have been developed: the rigid airship, the shape of which is fixed by its internal structure; and the nonrigid blimp, which depends on the pressure created by a series of air diaphragms inside its gas space to maintain the shape of its fabric hull. Inventors sought to combine the best features of these models in a semirigid type, but it met with only limited success. Today only the nonrigid airship is used. Rigid Airship The rigid ....