[Aymar_Mauri]

The first info might be more curiosity than anything else. The A-36 and the P-51H should be the real proposals for a new plane. I don't have much information but this might help:

P-51/Mustang I & IA * A36 * P51A/Mustang II

http://img262.imageshack.us/img262/2892/...thamer.jpg
http://img222.imageshack.us/img222/2892/...thamer.jpg
http://img262.imageshack.us/img262/2208/...hamerb.jpg
http://img244.imageshack.us/img244/2892/...thamer.jpg
http://img530.imageshack.us/img530/2892/...thamer.jpg
http://img512.imageshack.us/img512/2892/...thamer.jpg

P-51H

http://img201.imageshack.us/img201/7576/...hamerm.jpg
http://img394.imageshack.us/img394/8510/...hamert.jpg
http://img525.imageshack.us/img525/4367/...hamerw.jpg

I can also find some info and diagrams on the F4U4 and F4U5 if necessary.