lady s was in no hurry to slow down as the undercarriage was not dangling in the slipstream and the flaps were not fully down , but finally i got it sorted , and as i crossed the runway threshold , with the avon quietly ticking over behind me ( in flight idle ) i committed and closed the hp fuel cock and shut it down , perhaps it would save any foam from being sucked into the intakes , and then , when i judged that it was about that time , i eased the stick back slightly , and as her air airspeed decayed the lady s settled lower , and lower , and lower , then suddenly i lost all sensation of movement and was surrounded by white fluffy stuff .