looking for the manual of BearingRateComputer - SUBSIM Radio Room Forums
NEW NOS EDMPAPST 4606ZWU AC Fan Axial Ball Bearing 115V 105.9CFM 45dB USA Seller | eBay
Pair Of Vintage Air Navigation Computers From William H. Harris, RADM, USN (Ret.): Felsenthal Instruments Co FAA-161 (Computer, Pilot's Navigation And Fuel Management) And FAA-93A (Computer, Air Navigation, Dead Reckoning)