It's the flying jacket with the goggles and flowing white scarf
On the the more important question - do British planes all have tea-making facilities? I know that all the various AFVs do (deprive a squaddie of their brew? They'd mutiny like it was 1857..) and all the ships/boats most certainly do.
Or are the flyboys too up themselves for that? After all, they have servants^W ground-crew..