Nacelle
A nacelle (
Etymology
Like many aviation terms, the word comes from French, in this case from a word for a small boat.[3]
Development
The Arado Ar 234 was one of the first operational jet aircraft with engines mounted in nacelles. During its development, the four engines had four distinct nacelles. They once had their own landing gear wheel, but they were later combined to two nacelles with two engines each.
Around 2010, General Electric and NASA have developed nacelles with chevron-shaped trailing edges to reduce the engine noise of commercial aircraft, using an experimental Boeing 777 as a test platform.[4]
Applications
Usually, multi-engined aircraft use nacelles for housing the engines.
Other uses
- Česká Zbrojovka Strakonice was using it beforehand. Indeed, the Royal Enfield Bullet still retains its version, the 'casquette', on its current models. The last Triumphs to sport nacelles were the 1966 models of the 6T Triumph Thunderbird 650, 5TA Triumph Speed Twin 500, and 3TA Triumph Twenty One 350.[6][citation needed]
- The horizontal-axis wind turbine (HAWT).[7]
- A forward projection of a catamaran's bridgedeck designed to soften the impact of seas or make more space inside the cabin.
- In Star Trek it is also used as a term for the housing containing coils that generate the warp field. This is separate to the engine that powers them.
Design considerations
The primary design issue with aircraft-mounted nacelles is streamlining to minimise
References
- ISBN 0 511 33833 3
- ISBN 9780850451634.
- ^ "Online Etymology Dictionary". Retrieved 5 December 2013.
- National Aeronautics and Space Administration. December 13, 2010. Archived from the originalon January 18, 2017. Retrieved September 21, 2019.
- ^ a b c Ilan Kroo, Professor of Aeronautics and Astronautics (April 13, 1999). "Nacelle Design and Sizing". Aircraft Aerodynamics and Design Group at Stanford University. Archived from the original on March 7, 2001. Retrieved April 22, 2011.
- ISBN 0 85429 182 2
- ^ American Wind Energy Association (AWEA) video on construction of an individual wind turbine.