clouds and crashed into the ground; an apparent victim of American escorting fighters. Galland remained ambivalent about other types. He was initially sceptical about the design concept in the Heinkel He 162. Göring forced the program along, the hour was desperate and all designs were to be explored. Galland was concerned about dispersing production effort further but apparently changed his mind after viewing a mockup on 7 October 1944 and the seeing the prototype fly in December. He demanded wooden mockups be made for ground instruction while three percent were to serve as trainers. In the meantime, Galland pursued innovations with existing designs. The Focke-Wulf Fw 190 aircraft was formed into several Geschwader with distinctly upgraded firepower. Called the Sturmbock (Battering ram), these machines could inflict heavy damage on unescorted bomber formations. Galland supported the conversion of units such as Jagdgeschwader 300 to the Sturmbock role. The Sturmbock were heavily armed and armoured, which meant they were un-manoeuvrable and vulnerable without protection from escorting Bf 109s. Still, the tactics quickly became widespread and were one of the few Luftwaffe success stories in 1944. Galland said after the war, that had it not been for the Allied landing in Normandy which increased the need for lighter fighter variants, each Geschwader in the Luftwaffe would have contained a Gruppe of Sturmbock aircraft by September 1944. Galland himself flew on unauthorised interception flights to experience the combat pressures of the pilots, and witnessed USAAF bombers being escorted by large numbers of P-51 Mustangs. Nevertheless, on occasions the Sturmbock tactics worked. For example, on 7 July 1944 Eighth Air Force bombers belonging to the 492nd Bomb Group were intercepted unescorted. The entire squadron of 12 B-24s were shot down. The USAAF 2nd Air Division lost 28 Liberators that day, the majority to a Sturmbock attack. Dismissal and revolt Despite Göring's apology after their previous dispute, the relationship between the two men did not improve. Göring's influence was in decline by late 1944 and he had fallen out of favour with Hitler. Göring became increasingly hostile to Galland, blaming him and the fighter pilots for the situation. In 1944, the situation worsened. A series of USAAF raids termed Big Week won air superiority for the Allies in February. By the spring of 1944, the Luftwaffe could not effectively challenge the Allies over France or the Low Countries. Operation Overlord, the Allied invasion of German-occupied Europe