Malcolm Hood, which I have heard at least some wartime pilots preferred to the bubble canopy of the P-51D, saying they had better visibility out of it.
Wish granted. All P-51Bs, Cs, Ds, Ks and Hs had Merlin engines, which means the P-51B in AH is modeled with a Merlin engine.
354th FG Ace Richard Turner, of "Short Fuse Sallee" fame, commented that the Malcom hood allowed him to lean out and look back and below his tail, where the D canopy did not. It was also suggested that the airflow around the Malcom hood actually was smoother and gave it a bit more speed. If you can find a photo of a Malcom hooded Mustang from above, you can see that the canopy does bulge out to the sides a bit
