At least one Belfast reached Yeovilton during the Falklands war - as I drove past one day one (in Heavylift colours) was having a Sea King winched into it.
Next day a Lynx was being loaded into what looked from the rear like a Belfast painted in green / black camouflage - but as supposedly all had been mothalled except the two (?) in service with Heavylift, I ended up rather confused. It didn't look right for a C-130
Were any overseas aircraft borrowed?
All this was clearly visible from the road - they were parked between the Museum and main gate, near the water tower