The Luftwaffe was decimated by the 8th 9th and 15th AF fighters in 1944 5 that is a fact In the 18 months or so the P 51 was in action the Luftwaffe in fact inflicted far less losses than the 840 stated many of these P 51 losses were to flak and ground fire while strafing see for example the 355th Fighter Group record as evidence although they also include P 47 losses the principle is proven 365 air claims 505 ground kills for 191 aircraft lost of which just 46 losses were due to Luftwaffe fighters and 83 to flak and the balance due to non combat causes But if you have access to more verifiable figures for kill claims and losses then by all means please share them with us otherwise the numbers here have to remain which derive from several sources including the definitive The Mighty Eighth tome