Supercritical aerofoils

US4072282A · kind A · utility

Assignee

• The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · GB

Inventors

• John L. Fulker
• David Hall · Toowoomba, AU
• Robert C. Lock

Key dates

• Filing date: Mar 4, 1976
• Grant date: Feb 7, 1978
• Expiry date: Mar 4, 1996

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/10
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A supercritical aerofoil having a large leading edge radius of curvature, a radius of curvature over substantially the whole upper surface appreciably higher than the mean radius over the front half of the lower surface, a concave surface to the rear half of the lower surface, and a thickness/chord ratio of 10- 14%.