History:
FF 19-2-43 R-RH Cv HFIX 2-43 AAEE 21-2-43 oil cool and rad suit trls. Vc wing with mod upper cannon blisters R-RH M61 install with exp. exhaust 24-7-43 AC 24-8-44 AST AAEE 25-1-45 prop reduction gear trls. Tailplane incidence incr by 2 degrees ASTE 33MU 8-7-45 Pershore 5-9-47 Med SAAF 25-9-47
* for acronyms please see source:
Spitfire Production