Apart from Concorde, how many airliners in UK museums are under cover? the Dan Air Comet at Duxford (plus another Dan Air Comet at Wroughton).
I realise the size of the a/c involvedis a factor, but we do need a national airliner collection established to keep these treasures in good condition in under cover environmentally controlled conditions or it may be the Cosford massacre all over again.