September 1915 saw improved models of the delivered to the front; engine power was increased and the Fokker E.IV carried a pair of guns over the engine. That month Boelcke and Immelmann scored two victories apiece. On 22 September, Boelcke was moved to Metz, joining the secretive (Carrier Pigeons Detachment Metz) to counter a French offensive. On 1 November, the day after his sixth victory, Boelcke was awarded the Royal House Order of Hohenzollern. Immelmann duplicated the feat six days later, reaching six victories and also being awarded the Royal House Order of Hohenzollern. By now, the deadly effect of the new aircraft on aerial warfare was beginning to be referred to by the British and French public as the Fokker Scourge.
