500N
Come on, get real; any response will go tangential within the first five words.
Incidentally, I spent some time working (well, attending) at a major NATO Air HQ - nearly 4 years, culminating in redundancy - where I worked alongside a USAF major who had flown 'Dragon Lady'. He was late thirties, straight from a U2 flying tour, having a little rest and ticking boxes for promotion (staff, tour, overseas tour, NATO tour, all rolled into one
). I think his background prior to the glider/spaceship was F4 Wild Weasel; seemed to be a level-headed stable sort of guy who was happy to discuss his U2 flying - apart from the mission related stuff.
Mister B