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dirigible balloon:

see airshipairship,
an aircraft that consists of a cigar-shaped gas bag, or envelope, filled with a lighter-than-air gas to provide lift, a propulsion system, a steering mechanism, and a gondola accommodating passengers, crew, and cargo.
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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a controlled lighter-than-air craft (aerostat). The main parts of a dirigible are the long gas-filled body (ordinarily filled with hydrogen or helium), which is blunt in the nose section and pointed at the tail for better streamlining; the empennage, which consists of horizontal and vertical crossed fixed surfaces (stabilizers and fins) and movable horizontal vanes for vertical and horizontal control; and one or more gondolas for housing the crew, passengers, motors, and equipment.

A distinction is made among nonrigid, semirigid, and rigid dirigibles. In the nonrigid and semirigid systems (Figures 1 and 2, respectively), the cloth body of the dirigible also serves as an envelope for the gas. Semirigid dirigibles have a metal truss in their lower part to prevent deformation of the envelope. In nonrigid and semirigid dirigibles the outer shape is retained by excess gas pressure, which is constantly maintained by ballonets into which air is forced. In rigid dirigibles (Figure 3), the shape is usually maintained by a metal frame; the gas is contained within the metal frame in sacks made of

Figure 1. Diagram of a nonrigid dirigible: (1) body envelope, (2) upper and lower stabilizers, (3) elevator, (4) side stabilizer, (5) rudder, (6) towlines for anchoring and moving dirigible on land, (7) pneumatic shock absorbers, (8) propeller-motor assembly, (9) gondola, (10) gondola guy ropes, (11) air-filled ballonet to maintain constant outer shape of body envelope during ascent, descent, and flight (the boundary of the volume occupied by the ballonet is indicated by the dotted line)

Figure 2. Diagram of a semirigid dirigible: (1) nose reinforcing, (2) bands, (3) outer envelope, (4) internal suspension cables, (5) diaphragm (partition) dividing the volume filled with gas or air into sections, (6) observation window, (7) side stabilizer, (8) upper and lower stabilizers, (9) elevator, (10) rudder, (11) motor gondolas, (12) fin mount, (13) gasoline tanks, (14) ballonets, (15) passenger gondola, (16) shock absorber

Figure 3. Diagram of a rigid dirigible: (1) gas shafts to draw off gas released Through valves, (2) into the atmosphere, (2) gas valves, (3) rings, (4) stringers, (5) outer envelope, (6) main control gondola, (7) passenge- decks, (8) crew quarters, (9) side motor gondola, (10) upper and lower stabilizers, (11) side stabilizer, (12) rudder, (13) elevators

gas-impermeable material. Nonrigid dirigibles vary in volume from 1,000 to 7,000 cu m; semirigid dirigibles, from 8,000 to 35,000 cu m. Rigid dirigibles may be as large as 200,000 cu m. The speed of a dirigible usually does not exceed 100-135 km/hr.

Dirigibles have been used for communications and for supplying remote, inaccessible regions, for reconnaissance and convoying ships at sea, and to search for submarines and minefields.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


(aerospace engineering)
A lighter-than-air craft equipped with means of propelling and steering for controlled flight.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


A large, steerable, self-propelled, and lighter-than-aircraft. Also called an airship
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
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Nobile's other large dirigible, the V8 (at 9,500 cubic metres the same size as the V7) was not much luckier: its load capacity was too small, it had unsuitable aeroplane engines, and was finally retired in 1938 after only two years' service.
The elderly narrator in the title story is, somewhat improbably, pitching the idea of a play about the doomed dirigible Shenandoah to the principal of Sam Houston Middle School.
Built in Friedrichshafen, Germany, Los Angeles made a three-day trans-Atlantic flight to Naval Air Station Lakehurst, N.J., where her flammable hydrogen gas was replaced with helium, making the dirigible safer, but decreasing her payload and range.
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Wellman's pole-hopeful dirigible was barely more than an elongated balloon, powered by gasoline-engine-driven propellers, which the journalist readied for flight less than a decade after Andrde' s disappearance.
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The dirigible, which had been invented by Zeppelin thirty-seven years earlier, came to an end as a major aeronautic device in May 6, 1937, when the German dirigible Hindenburg, the largest ever built, exploded and burned at Lakehurst, New Jersey.
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