At long last, I have received a large, poster-sized picture of the B-17 crash at Lavenham in February 1945, which Doug and the rest of the Portsch crew were extremely lucky to walk away from.  
Under the right wing and No.3 engine can be seen the remains of the cement mixer lorry which the Brit workmen had been using to repair the perimeter track. As you might expect when confronted with 20 tons of oncoming B-17 bomber, the men scattered like f.H. and there is an amusing note in the Control Tower log which says the foreman i/c of the workmen asked the Duty Officer to let him know when that runway was in use again !!!

Hope you find them as interesting as I did !

(from Bob Collis)