EN in the context of WW2 stands for Emergency Number, being, particularly, steel alloys rapidly impressed into wartime service without the delay occasioned by a committee considering the materials classification under DTD (Directorate of Technical Development of the Air Ministry) or British Standard. Most of your Stirling would be composed of BS and DTD materials as well as EN. So you would be right using EN materials and most folk over the age of 65 think of steels in ‘EN’. Euro norm, that’s something different again….

Found this among our collection – from a wartime ‘Aircraft Materials Ltd’ catalogue
– shows that there were different names for the same thing.

[ATTACH=CONFIG]233213[/ATTACH][ATTACH=CONFIG]233214[/ATTACH][ATTACH=CONFIG]233212[/ATTACH]

I hadn’t encountered EN in this context before, I was wrong.

Hamilton Standard 6101.. quite common, fits a 2D40 or 3D40 hub. This one is a -18, ie 18 inches short of ‘design diameter’.. which makes it almost certainly T-6 through sheer weight of numbers though many and various rarer types used it, Stearman et al..

Happened before. Colerne, near Bath, so it is assumed it’s in Somerset.. (I was paying attention 🙂 )

And I do wish people would quit slagging on the Hawkinge museum…they have reasons for their actions
Has anyone ever nicely asked for a photo op?

Me too – we (the Whirlwind Project) did just that, and they were very helpful and accommodating.

..ref the FSM thing, DX do have an FSM Spit I (ish) in Hangar 4.

Ha! You beat me to it, WF. That caught my eye too 🙂 Very interesting indeed. They kept a Welkin but set fire to and then buried a Whirlwind at about the same time?

One thing – the ‘Andy Capp’ Spitfire is probably a false lead as the cartoon didn’t appear in the Mirror until 1957