BEagle.
ΔH, Avon-powered Hunters were prone to engine surge when the guns were fired, due to ingestion of muzzle gases. The only solution was to 'dip' the fuel supplied to the engine whilst the guns were firing, which briefly reduced the fuel supply during the half second or so during which the trigger was pressed.Probably only a problem if all 4 guns on the SS Hunters were fired together, but fitted to all Avon-powered Hunters nonetheless.
Almost. The Gun dip and HP pump isolate system were fitted only to the 100 series powered A/C.
The 207 didn't suffer from as many airflow problems and didn't require either system.
BTW. The take off looked and sounded exactly right too. That climb out could have been at Penycwm. The engine sounded healthy right to the end.
Sorry to Nit Pick.
