Accession Number:

AD0021495

Title:

THE LAUNCHING AND LANDING OF CARRIER AIRCRAFT. PART 2. LIMITATIONS OF CABLE-DRIVE CATAPULTS

Descriptive Note:

Final rept.

Corporate Author:

KANSAS UNIV LAWRENCE

Personal Author(s):

Report Date:

1952-12-01

Pagination or Media Count:

70.0

Abstract:

A study was made of the performance limitations of hydraulic catapults which transfer the force of the catapult engine to the aircraft by a cable. The ultimate strength of the cable was shown to limit the acceleration to 802 fps for a cable length equal to the total run length. However, the speed appeared to be limited practically below this by a rapid total-weight increase as the accelerated-run length increased to give a higher terminal velocity. A multiply reeved system decreased the maximum attainable velocity as the multiplication of reeving increased. An increase in cable limitations with cable length indicated improved performance by using shuttle-or multiple-braking systems and eliminating multiple reevings. A continuous-cable-drive, shuttle- clutch catapult offered possibilities for medium-capacity installations. Catapult choice was shown to be a compromise among considerations of low over- all weight, low topside weight, high efficiency, protection from damage, reliability and durability, and lack of interference with armor, flight-deck structures, and aircraft-carrier equipment.

Subject Categories:

  • Aircraft
  • Terminal Flight Facilities
  • Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE