Mate, I'm so old that my first flight in the military (also first flight ever) was on a Yukon cross country shuttle. Add in Cosmos and the 707 shuttle. Had a short flight in a DC-3 out of Winnipeg once - an engine quit just after takeoff so quick turn around to land. Buffalos and Hercs. Once in a Tracker and once in the backseat of an F-5 on my FAC course. For helicopters the Kiowa, Huey and Voyageurs - a lot in the latter two.
Lot of air time for a mud gunner.
Edit - I actually have to correct that. My first and second flights ever were as a reservist in the back of a Herc. The Yukon was my first flight in the RegF and therefore my third flight.