There certainly was a radio altimeter on the VC10's that I flew although I can't vouch for VM as it was only used for base training at the time. There's a good description of the flight from somebody who was on board in post 159 of this thread;
http://www.pprune.org/aviation-histo...vc-10-a-8.html
Last edited by Airclues; 20th Nov 2015 at 11:28.