Surely since the a/c is so old, sits idle for long periods, pilots don't have the chance to stay current on it due to the cost of running 4 PW's, ADs, reliability issues (not many A&Ps know how to maintain a B-17), fairly high insurance premiums are justified? Ok, maybe not £1000ph, but something that takes into account all these risks - although no doubt the insurers think they can line their pockets with the proceeds of a few flypasts
:uhoh
Confab