Autopilot Flight Controller USAF E-4, C-130 F4U Corsair This edition contains a misprint

This edition contains a misprint of pages 201-239 covering about 10 pages of the Scintilla chapter and most of the Friez test/recording instruments chapter

followed by discussions between Kearfott engineers and members of the USAF/RCAF LF Loran Flight Test Unit involved in polar flying out of Edmonton

The AAU 19A/A altimeter is a standard 3 inch counter-drum-pointer altimeter which provides two modes of operation -- servoed (reset) mode and standby mode

and the lettering is perfect

Autopilot Flight Controller USAF E-4, C-130 F4U Corsair This edition contains a misprintThis is an example of the Flight Controller, Type A 6, for the USAF Autopilot Type E 4 (aka as the Sperry A 12 Gyrosyn Automatic Pilot System). The E 4 System was used in the late 1940 1950's and was still in use in some 1960's aircraft. Early Lockheed C 130 Hercules transports used this system, as well as civilian aircraft such as DC 3 and DC 6. This item has a serial number prefix of AF 52, evidence of manufacturing year of 1952 for a USAF order.