Accession Number : AD0634104

Title :   LF-2 LIGHTWEIGHT LIFT FAN FRONT FRAME DESIGN

Descriptive Note : Final rept.

Corporate Author : GENERAL ELECTRIC CO CINCINNATI OH FLIGHT PROPULSION DIV

PDF Url : AD0634104

Report Date : May 1966

Pagination or Media Count : 153

Abstract : The design, the manufacturing problems and their solutions, and the limited testing of a new bolted component assembled lightweight front frame for a tip turbine lift fan are discussed. This new frame was necessary for compatibility with a new lightweight improved critical speed response rotor design and to replace the present X353-5B front frame which is used in the General Electric Company's XV-5A Lift Fan Flight Research Program with a lighter weight and lower cost unit. The functions, description, design considerations, and stresses are discussed for each component. The frame component weights as calculated have been tabulated, and a comparison of the summation of the component calculated weights of 99.6 pounds versus the actual pan weight of 103 pounds is discussed. The frame was tested to 100-percent rotor speed loading as a component part of the LF-2 lift fan assembly. Limited operating data were obtained because of test termination resulting from turbine bucket shroud damage.

Descriptors :   *FANS, *TURBINES, COSTS, FLIGHT, LIFT, TURBINE COMPONENTS, WEIGHT

Subject Categories : Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE