Me too, but SF isn't the best way to simulate it, given that flying something like the SR-71 is more about systems management than seat of the pants flying. For example, I was surprised to learn that for the bulk of their missions, the Blackbirds were flown on autopilot. However, we win either way as Del's does great work and any plane he makes for the game should be a beauty.
OT but consider a real SR-71 simualtion. Of course you would fly the mission, which would be cool, but equally intriguing would be the opportunity to perform all of the mission planning for such a complex operation taking place over thousands of miles and involving as many as eight aerial refulings, etc., etc. Schedule a tanker wrong and swim home...