Seriously I believe there were harnesses at Cottesmore in 1965. There was actually a mountain of kit in the Vulcan inventory that was never used.
We had engine blanks that were only used in adverse weather. Jet pipe covers even less. There were also 'spats' to cover the wheels. When we took an aircraft to Bitteswell they would become agitated if we didn't have all the kit. Of course we never did.