Miniature fin fillets in the Mustang Mk Is

[Empiricist]

Hello,

As we know there was a block of the NA-83 Mustang Mk Is RAF serialled between AL958 and AL999. The first aircraft of this British order, AL958, was photographed during its maiden flight. Two pics of this aircraft are posted at the bottom including tail section close-up. In both pics AL958 serial can be seen.

I want to pay your attention to tail section and miniature fin fillet clearly seen at AL958. This element seems to be totally unknown in the other RAF’s Mustang Mk Is/Mk IAs pics not to mention later variants images. I do have various Mustang monographs US-, European- or Japanese-published none the less not one of them shows in their pictorials or plans this miniature fin fillet in the RAF early Mustang variants as can be seen at the AL958 specimen.

I would like to ask all Mustang lovers for your comments. Do you know other pics of the RAF’s earliest Mustangs with such fin fillets or AL958 is one-specimen phenomenon for the tests for example? Was AL958 a kind of test bed equipped with such a miniature fin fillet or there was a little more such aircraft?

Thank you very much in advance for all interesting comments.

Best regards

Aerospace Empiricist :-)


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