Hi Cal,
Yes you are right. A Wellington.
They were coming back from Germany, over the North Sea and got ' bounced ' by a German night fighter. Dad says it came up from below them.
With the plane shot up, they managed to get it to Bruntingthorpe, which at the time was an emergency airfield. I remember him telling me that, as a crew, they had made a decision that they would never leave the pilot on his own. Thus all the crew stayed together . The hydraulic system failed and they could not get the wheels down. Just to add a ' twist ' there was also bomb ordnance still on board .
When they landed, he said they jumped out and ran like hell, before the whole plane blew up. As you can see from the photo, not much of the structure survived above the bomb bay. He's 87 this year and i'm happy to say, still has most of his facalties.