Bittern at speed.
Bittern replaced another engine at the last minute for the October 2010 run to Bristol. Shot from an unmanned level crossing between Wilton and Codford at a place called Common Bottom. I kid you not.
shot with my 100-400L (this particular frame was at 300mm) 1/60s @ f/11, ISO800 using AI Servo. I used a monopod to steady the shot and forgot to set the IS to mode 2, but it seems to have managed.