GRNDP51 wrote:
Got it, like the D & K (besides prop, which some K's got Hamilton's anyway). I always just associate the B with the malcolm hood and C's to have the sharp razorback canopy. So there were B model's built without the malcolm hood? To me that's similar to asking if there were K's built without the AeroProducts prop.
Well that's where I think people tend to get confused the most.
P-51B's and P-51C's were absolutely identical (except for the data plates), where they were designated differently based on place of manufacture. However, that was not the case with the P-51D. P-51D's were manufactured at both Inglewood and Dallas - in the case of the D's, they were only separated by the 'NA' for Inglewood or 'NT' for Dallas in their full designation strings (such as P-51D-5-NA and P-51D-5-NT). P-51K's, however, were only manufactured at Dallas. K-model production was injected within D-model production at Dallas, with K airframes being identical to the D's, but with Aeroproducts propellers instead of Hamilton Standard propellers. That was due to the fact that NAA was producing more Mustangs than Hamilton Standard could provide propellers (when in-service long enough, K's tended to eventually have Hamilton Standard props installed in-place of the more troublesome Aeroproducts units - as also happened to the restored P-51K "Fragile But Agile", several years back).
At Dallas, D/K production started with 200 P-51D's, followed by four production blocks of 1,500 P-51K's, followed by three production blocks of 1,400 P-51D's.
Speaking to the point of Malcolm hood canopies, they were never installed on any Mustangs from the factory, and they were only provided to units operating in the ETO (the RAF and the USAAF 8th and 9th Air Forces, and that's all). As mentioned above, the only significant difference between P-51B and P-51C production occurred with the very last four hundred P-51C's produced, which had dorsal fin fillets installed from the factory (where as kits were provided for all of the rest already in operation). By the time those last four hundred P-51C's were being produced, the Inglewood factory had already switched over to D model production.