P-51, Cant talk gotta shoot! by Dan Zoernig.
"Can't Talk now...Gotta Shoot" July 7, 1944. Capt. Clarence E. "Bud" Anderson slides in behind a trio of ME 109S flying in perfect formation, seemingly oblivious to the huge armada of bombers and fighters in the vicinity. 357TH Fighter Group leader Tommy Hayes, spoiling for action, calls out on the radio, "Andy! Where are you?" Focused on the business at hand, Anderson replies, "Can't talk now...Gotta shoot."