Accession Number : AD0261746

Title :   FIRST ARTICLE FUNCTIONAL TEST OF THE BAK-9/F48A AIRCRAFT ARRESTING BARRIER

Corporate Author : TEST SQUADRON (OPERATIONAL) (4750TH) TYNDALL AFB FLA

Personal Author(s) : CANNON,GEORGE C. JR.

Report Date : 10 JUL 1961

Pagination or Media Count : 1

Abstract : The BAK-9/F48A aircraft arresting barrier is a rotary friction brake type energy absorber. The distressed aircraft's tailhook engages a runway pendant cable which pulls two nylon tapes from storage reels mounted on a common shaft between two disc type brakes. The reels revolve and drive a hydraulic pump which supplies pressure to a control unit. The control unit applies constantly varying pressure to the reel brakes so as to stop the aircraft in 1000 ft regardless of engaging speed. An electric motor retrieves the system in 3 1/2 min. The system will stop a 45,000 lb aircraft at 161 kn or a 55,000 lb aircraft at 141 kn without exceeding 2.0 G deceleration or conservative tape strengths. Fifteen F-106A and two F-101B arrestments were made at speeds of 52 to 106 kn and aircraft weights of 28,500 to 43,500 lbs. The system was tested at ambient, +120 F and -30 F temperatures. Oncenterline and 75 ft off-center engagements were made. A barrier intercoupling disconnect feature was tested. The system performed very satisfactorily under these conditions. (Author)

Descriptors :   *ARRESTING GEAR, *JET AIRCRAFT, *LANDING AIDS, AIRCRAFT LANDINGS, FIGHTER AIRCRAFT, JET FIGHTERS, LANDING.

Distribution Statement : APPROVED FOR PUBLIC RELEASE