Bill - I wonder why you chose the Allison version P-51 and such a low speed for the P-47D. E.g, -
The 51B w/1650-7 booked along at
441mph at 24.9K
410mph at 18K
364mph at SL.
The climb rate was
3920fpm at SL
3250 at 18K
2400fpm at 25K.
1200fpm at 32K
Service Ceiling 41,000 feet
All numbers for 67"/3000rpm/full combat load with racks but no external fuel for the weights. The 51D-15 in same config and power was slightly faster at SL and slightly slower climb rate. Add approximately 10mph when you take the bomb racks off and get a comparable comparison versus the FW190A-8 below.
The FW 190A-8 tested 10/44 at 1.63 ata and no external racks but full load otherwise.
Comparable Speeds - max
350mph at SL (14mph slower)
405mph at 18K - dropping off above that altitude (5mph slower)
390mph at 25K - (51 mph slower)
3500fpm at SL (420fpm slower)
2400fpm at 18K (850fpm slower)
1900fpm at 25K (500fpm slower)
400fpm at 32K (800fpm slower)
Celing 36,000 feet (5,000 feet lower) http://www.wwiiaircraftperformance.org/fw190/fw190a8.html http://www.wwiiaircraftperformance.org/mustang/mustangtest.html
You can peruse through the site and get what you want - note that I didn't use 75" (44-1 150 Octane) available six months before the A-8 tests at high ata (boost) for comparison - otherwise the Mustang performance was even better in cmparison.
The P-47-25 through P-47M also have far better performance than the figures you used above when compared to the Fw-190A-8. Only the FW 190D-9 is close and it didn't enter combat until very late November/mid December in small numbers when the P-51B and D with 75" boost as well as P-47M outperformed it - without having to deal with buggy aircraft..
post edited by drgondog - 2012/02/27 17:55:10