When I was a USAF Electronic Warfare officer I converted from the F-4G to the EF-111A Raven. To get to the Raven, I first had to qualify on the F-111A fighter-bomber.
I came to the F-111 school pretty arrogant, and I way underestimated the effort that would be required. The F-4G had a very powerful electronic warfare system, but as an airplane the F-4 isn't a whole lot more complicated than a Harley Davidison. It's two motors, push forward to go fast, pull back to go slow. It had a primitive autopilot, a simple INS and radar, and a very simple weapons computer that was seldom used, since pilots could drop better bombs manually. Plus, the F-4 is really a single pilot airplane, with the back seater more of a system operator.
The F-111 was a much, much,more complicated airplane, and was designed from the ground up as a two pilot airplane. It had very complicated systems which included three radars, swinging wings, and the ability to fly night IMC at 200' and 500 knots. Unlike the F-4, the F-111 WSO sets up the weapons and in many cases releases the bombs. And the F-111 flew very long high speed low levels, and we were expected to time everything so that bomb impact was within +/- 30 seconds of the planned time. On training missions we alternated between nuclear and conventional deliveries, in order to maximize switch confusion.
By the time it dawned on me that I'd better get serious about the training, I was well behind the power curve and had a couple of pretty marginal rides, including one in which I got lost (considered poor form for a navigator).
But for some reason, on the day of my checkride, I woke up and just understood the airplane. All of sudden, I just knew that I could do this mission.
I aced the oral, and the three hour checkride was perfect, the most perfect flight I've ever had. I didn't miss a switch, a radio call, or a turnpoint. My first bomb was within 10 seconds of planned. Every bomb was qualifying. I ran through the complex checklists with no problems. None of the simulated emergencies threw me. The evaluator didn't write anything up, it was a perfect ride.
I don't know how it happened, but on that day I was the hottest WSO in the fleet!
Jim