There was a nice debate between Hungarian exFCOs, about this switching...

... what is your educated guess?
What is this Dvina FCO switching on?

Last edited by Hpasp; 08/29/14 07:06 PM.

Free SAM Simulator, "Realistic to the Switch"

(U-2 over Sverdlovsk, B-52's over Hanoi, F-4 Phantoms over the Sinai, F-16's and the F-117A Stealth bomber over the Balkans.)

Book from the author - Soviet Nuclear Weapons in Hungary 1961-1991