shuck wrote:
Mustang question ... is N1751D Sierra Sue II still regarded as the most accurate and authentic P-51D flying.
In my view it is. It's an early-production P-51D-20-NA restored with all of the right details of an early-production P-51D-20-NA. More things were done to match original NAA factory processes, fit and finishes than I have seen on any other P-51D restoration. The FHCAM P-51D-20-NA 'Upupa Epops' is also of a similar caliber, being a late-production P-51D-20-NA restored with all of the right details of a late-production P-51D-20-NA. Both also lack the highly-inaccurate polished mirror finish, have original WWII-type rivets, have profiled wings per original factory process, are painted in the same markings they had when in USAAF service, and have the bare minimum modern avionics that don't remove any authentic details from the cockpit. They have everything in them as they would have had in 1945, including the fuselage fuel tank, original early-mid production battery location behind the pilot, WWII radios, gun camera, armament, etc. Both are also highly original airframes with a lot of their original parts remaining (even skins in areas). One of the several unique things about 'Sierra Sue II' is that it was restored with real zinc chromate, something that you don't see in other warbird restorations (most use modern paints/primers tinted to match original wartime shades of zinc chromate), and for the markings they also used lacquer and enamel-based paints, as were used in 1945, rather than modern alternatives. Of course, 'Upupa Epops' hasn't flown since 2019, and I don't know if 'Sierra Sue II' has been flown since it arrived in Arizona back in February after being sold.
Speaking of 'Sierra Sue II' and the warbirds that were owned by the late Paul Ehlen, three of the Ehlen warbirds have now been sold - 'Sierra Sue II' to Craig Potts in Arizona, the also very WWII-stock AT-6D (N85696) to Exuma Air LLC in Montana, and the George Bush Stearman (N50061) to a new owner in Savage, MN (who I just recently spotted flying in to both Fleming Field and Minneapolis Intl., which are two airports it was based at during WWII - then known as 'Naval Air Station Minneapolis', which comprised of both airfields). Just the TBM Avenger N93818 and the damaged/destroyed P-40E N4420K remain registered to the late Paul Ehlen. The P-51B 'Shillelagh' project at AirCorps Aviation, which was partly owned by Ehlen, was also recently sold to the Dakota Territory Air Museum (AirCorps are slated to have it completed in 2026).
John, Thank you very much for your P-51 knowledge and insight ... very interesting information.
I must dig out my old book ... Sierra Sue II by John Christgau.