by Morten Jessen | Aug 15, 2015 | A Little Bit of Everything, P-51 Mustang, USAAF
While searching for something else in the ULTRA files, Andrew stumbled upon another fascinating signal, and this time it is a German report on the entry into service of the P-51B Mustang, re-engined with the much more powerful Merlin power-plant. The signal is from 29...