After a couple of visits to Brooklands spaced over a few years it was noticeable that the Aircraft stored outdoors had all deteriorated to quite a degree; especially the Vanguard and the VC-10. Even the Concorde showed signs of peeling paint in places.
Would the use of a medium power (domestic) jet spray washer by someone on a wheeled platform be helpful in keeping the algae and dust/dirt off the frames in the short term ? I realise that aircraft paint and it's upkeep are a tad different than other paint coverings, but at least the washing might be a small help until hangarage is available. Great place staffed by a nice bunch of characters
SHJ