Blimp
Blimp is an informal term typically applied to non-rigid, helium-filled, airships.
For a more complete description of this style of aircraft, please see airship.
The term 'blimp' is reportedly onomatopoeic, the sound the airship makes when one taps the envelope (balloon) with a finger. Although there is some disagreement among historians, credit for coining the term is usually given to Lt. A.D. Conningham of the British Royal Navy in 1915.
There is an often repeated, but false, alternative explanation for the term. The erroneous story is that at some time in the early 20th century, the US military had two classes for airships: Type A-rigid, Type B-limp. Hence 'blimp'. In fact, "there was no American 'A-class' of airships as such—all military aircraft, heavier or ligher-than-air were designated with 'A' until the appearance of B-class airships in May 1917. There was an American B airship—but there seems to be no record of any official designation of non-rigids as 'limp' Further, according to the Oxford Dictionary, the first appearance of the word in print was in 1916, in England, a year before the first B-class airship." (from Etymology of 'Blimp' by Dr. A. D. Topping, AAHS Journal, Winter 1963) The perpetuation of this erroneous explanation is an example of folk etymology.
Blimps maintain their form by internal overpressure. Typically, the only solid parts are the passenger car and the tail fins.
A blimp that uses heated air instead of a light gas as lifting medium is sometimes called a hotship.
Applications
Blimps have been popularized by several companies, including Goodyear, Budweiser, and Fujifilm, which use them for advertising, and as platforms to provide aerial shots of sporting events.
During World War I and World War II blimps assisted the United States military in aerial reconnaissance along the Atlantic and Pacific Coasts.
The Mineseeker Project ([1]) seeks to design a system to determine whether landmines are present in areas using ultra-wideband synthetic aperture radar units mounted on blimps.
For a discussion of current research and development on other types of blimps, including a so-called "space blimp", see airship.
See also
External links
- The Lightship Group - Blimp operators
- The Goodyear Blimp
- The Fujifilm Blimp