Title: The use of wing tip sails to reduce vortex drag
Abstract: With the increasing need for fuel economy all possible areas of drag reduction need investigating. One form which offers considerable promise is lift-dependent drag which for most transport aircraft is approximately 30% of the total drag in the cruise and more at lower speeds. A reduction in lift-dependent drag at a given flight speed would directly reduce the operating costs of existing aircraft. Even greater savings might be obtained for twin-engined airliners where the wing loading is fixed by the high lift-dependent drag at climb-out from the airfield. A method of increasing the effective aspect ratio of a wing would allow new aircraft of this type to have lower wing areas and weights in addition to higher cruise lift-drag ratios.
Publication Year: 1978
Publication Date: 1978-09-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 90
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot