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However, several mid-20th century airships were longer: for example the German Hindenburg-class airships were 245 metres (804 ft) long. The "largest-ever" non-rigid airship, the U.S. Navy's ZPG-3W 1950s-era military airborne early warning airship, was longer at 123 m (404 ft) and larger with a 42,450-cubic-metre (1,499,000 cu ft) envelope capacity.
The Zeppelin NT series are a family of semi-rigid airships, combining the design principles of rigid airships and blimps together. [7] The Zeppelin N07, the base model and most commonly constructed to date, are 75 metres (246 ft) long, with a volume of 8,225 cubic metres (290,500 cu ft).
The Airship Industries Skyship 600 is a modern airship, originally designed by British company Airship Industries, further developed by a subsidiary of Westinghouse Electric Corporation. The type certificate holder is now Skyship Services of Orlando, Florida. The first Skyship 600 made its maiden flight on 6 March 1984. [1]
A non-rigid airship relies entirely on internal gas pressure to retain its shape during flight. Unlike the rigid design, the non-rigid airship's gas envelope has no compartments. However, it still typically has smaller internal bags containing air . As altitude is increased, the lifting gas expands and air from the ballonets is expelled through ...
Like all modern airships, helium is the lifting gas. [2] The AS700 has an ellipsoid hull, with a rigid tail configuration done in an "X" positioning rather than the traditional "+" positioning. [2] The design is considered as a light and cost-effective capsule-shaped airship. [3] The tail has flight control surfaces to allow in ease in steering.
A hybrid airship is a powered aircraft that obtains some of its lift as a lighter-than-air (LTA) airship and some from aerodynamic lift as a heavier-than-air aerodyne. A dynastat is a hybrid airship with fixed wings and/or a lifting body and is typically intended for long-endurance flights. It requires forward flight to create the aerodynamic ...
The Cameron D-96 was the first hot air airship, a powered, steerable lighter-than-air craft carrying two or three crew marrying the elongated envelope of an airship with the externally localized heat source of a modern hot air balloon. It was designed and built in the UK and first flown in 1973.
The P-791 was designed as part of the U.S. Army's Long Endurance Multi-intelligence Vehicle (LEMV) program, but lost the program's competition to Northrop Grumman's HAV-3 design. The P-791 was modified to be a civil cargo aircraft under the name SkyTug, with a lift capability of 20 short tons (18,000 kg) and plans to scale larger.