Well, I believe you just need to have training at that position, so most likely done in a appropriate classed simulator. I have 40hrs(20/type) in the 727-100 and -200 at all three positions. The -100 was a Level-A, and the -200 was a Level-C. Good times! Nothing like automation failure to really make that 3rd person work though. Or it could be because that 3rd person messed something up too