Thanks Dave, It would appear that the Comet was 148 which was later used as the nimrod trials aircraft. Of interest, I was chief Flt Engineer at RAF Lyneham during the 70's and was teaching a Master Engineer Ginge Elliston at that time. He was on the "Comet" at Pewrshore but i never did get the aircraft registration from him. He must be long gone now but I would have liked to know if anyone has heard of him or knew him. The only remaining Comet 4C's of 2-16 Sqn are XR398 (In a field in Germany in Dan Air livery) and XR399 which is at East Fortune airport nr Edinburgh also in DA livery> 395/6 and 7 were used by Dan Air after RAF and then scrapped I believe at Lasham. Thanks all of you for the info you have provided. - Tony Clack