Flight Detent
Also...Let me tell all that will listen that it takes substantially more than "a couple of weeks" (as in the case someone said to Xtrain a GE), or anything short of 5 or 6 months to Xtrain a qualified-on-type pilot to be anything resembling a competent Flight Engineer.
"Flight Engineers must be licensed by the Federal Aviation Administration . The most common method is to complete a course of ground and flight instruction approved by the FAA. For a Flight Engineer's certificate, individuals must have had either 2 years of training or 3 years of work experience in the repair of aircraft and aircraft engines and at least 5 hours of flight training in the duties of a Flight Engineer, or at least 200 hours of flight as a pilot of a four-engine piston or jet plane, or 100 hours as a Flight Engineer in the armed forces."
Scuffer Eng, you could simply convert a Ground Engineer over to do the VC10 Job, most of the Engine trades used to have to do most of The Panel anyway....