I was playing in the simulator (C-5) yesterday after our session and decided to try my hand at some phugoid practice. Basically, we shut off three of the four hydraulic systems (#1, #2, and #3), rendering the elevators and rudders useless and leaving me with just the right aileron and a few flight spoilers (and, of course, engine power). We entered a phugoid with extreme pitch oscillations which I was eventually able to dampen out. I got headed for a runway and set up a pretty stabilized approach at about 180 KTS (clean configuration). I put it down right on centerline in the touchdown zone but my VVI on landing was around 900 FPM and I got the red screen of death. The second time I put in full power too early and ballooned it back into the air. The third time, I bounced and again the plane wanted to fly. On my fourth attempt, we finally lived. I made it a much shallower approach with partial flaps with about 300fpm rate of descent (as best I could, anyway). This time I landed short and took out some approach lights but it was survivable.
Obviously, losing most of your hydraulics is very bad news on a big airplane (there's no "manual reversion" w/ the C-5). This caused the loss of a C-5 at Siagon in the '70s and of course United 232. Have any of you ever tried this scenerio in the sim? How did it work out for you?