I flew left seat with Royce Barnwell occupying the right seat of an A-26. He had more A-26 time, at over 6000 hours, than anyone on earth. I was a PPL and 17 years old and I hung on to that beast for dear life while Royce coached our howling trip down the runway. I'll never be able to experience anything like that again.
Royce once took off, single engine, in a crippled A-26 and flew on one engine across the Sahara desert in WWII.