HMS Thunderer AKA Crownhill Comprehensive, the school for engineering officers was knocked down in the late nineties, early naughties and turned into a housing estate. Manadon college was the last place I had any dealings with a marine water tube boiler ( Y20). Also the scene of an inmate nearly getting his MG blown up as he'd left his briefcase on the roof of it in the early ninteies, caused a major security alert including armed police, bomb disposal and two fire engines, still I got some overtime out of it as I couldn't get out to return to the yard.
Cheers SS