Originally Posted by ChatterBox33
Saw the photos of Don Grange (of ITVV fame) and his last flight. The "FO" was actually another Captain
His last flight was to Innsbruck; special training is required and it's not uncommon to have a fellow INN trained captain (who is also checked to operate from the right hand seat) as the FO on those trips since experienced captains are often right hand seat checked too.