Quoting from Bill Gunston’s book on Rolls Royce, “In late 1944 an RM.17SM Merlin was run at Derby for fifteen minutes at 36lb boost on 150-pn fuel with water injection, recording an output of 2640hp”.

What was the maximum power output of an Allison v1750?

The need in 1940 wasn’t for a Griffon, it was for a Merlin with an anti g carburettor, and cannons, it is very possible that a Griffon Spit (or Hurri) would have been too cumbersome to take on the early (and more agile) 109.

The two reasons that the Merlin was the engine of ww2 were, 1, its power output and 2, its reliability, especially at high boost.

How many peoplecan make the 1st Dec? That sounds good and not too close to Christmas?! I would suggest we take a group phot?

You can take one now if you like……

Note to Flypast Historic Forum users, your comments are beeing watched on items I sell.

Not being then??

With that standard of grammar, the seller is obviously a forum member….

It can’t be of Germanic origin, because it is exactly 13″ long….

Well if one belted down the crowd line would you be able to tell which engine was in it?

Yes.

Pondskater now that is a Spitfire !!!!

is it a mk3 which is my favourite, the elegant lines of that mark take some beating I have owned several of those, and looking for another as we speak.

But to make do I have a mk2 GT6 which I will take any 109 on in 😀 chocks away !

Only the one GT6? I thought you had a whole squadron….. all gone tech though!

Xtango, please don’t think that my reply r.e the farm machinery was sneering or in anyway derogatory, it was merely adding another dimension (wanted or not) to the thread.

As Junk collector was involved in the recovery, he is feeling a little aggrieved, with regards to the way things turned out, possibly justified,possibly not; not for me to say.

As I understand it, the data plate doesn’t just save a few quid, it is the difference between a restoration, and a new build, and the latter requires type approval, and that needs very deep pockets.

Whilst it is true to say that nothing made in 1940 cannot be replicated, you have to see the invoices for some of these items to believe them, and no one has started manufacture of merlins yet, however the one thing that can’t be replicated is the history, the bravery and possibly the ingenuity, of those men with their backs to the wall.