Wer googelt, ist klar im Vorteil... ;)
Und wenn man dann noch der englischen Sprache maechtig ist...
http://en.wikipedia.org/wiki/Lockheed_U-2
In "Details" wird ab der 2. Haelfte die Wirkungsweise des Fahrwerks beschrieben. Pogos fallen beim Start ab, werden von Crew im Begleitfahrzeug eingesammelt, und nach der Landung wieder angebracht, um dem Lfz das Rollen zum Abstellplatz zu ermoeglichen
http://www.blackbirds.net/u2/u-2mission.html
Hier wird der Ablauf einer U-2 Mission und die anschliessende Landung beschrieben:
...Despite being exposed to serious threats and a hazardous physiological environment, our pilot is about to engage in the most challenging part of the mission-landing the U-2. The U-2 is without a doubt, the most difficult aircraft in the inventory to land. With its bicycle landing gear, long wingspan and its "desire" to keep flying (even with idle power), the pilot has his hands full putting it on the ground. The mobile officer also has a big role to play here. Keep in mind our pilot has been in a hazardous physiological environment for over nine hours. Not much to eat, no chance for a break, unable to get up and walk around. He is dehydrated, fatigued, and has a skewed depth perception from the high altitude. Still, our pilot brings the aircraft to cross the runway threshold at 10 feet precisely on centerline. The mobile chases the aircraft down the runway, making altitude calls at about every two feet. Deviations are also called out. To successfully land this aircraft, the pilot must achieve a full stall at two feet above the runway. I don't mean killing the engine. By stalling I mean to cause the aircraft's wings to stop generating lift. Our pilot does this through exact airspeed control. No easy task considering the condition he is in along with the bulkiness of the pressure suit.
As it slows, the tailwheel lowers to the runway and when the U-2 reaches a stall, the main wheel touches down. The maneuver looks graceful to onlookers, but tends to feel violent inside the cockpit as the pilot feels the stall, touches down and struggles to keep the wings level. But, it is not over yet. The pilot still has to "fly" the wings until the aircraft can stop. Remember, the pogos fell out upon takeoff so as long as the airplane is rolling and the wings are producing some lift, the pilot must fly the wings to keep them off the runway.
Finally, as the aircraft begins to stop, the pilot will gently put one wing on the ground. Each wing has a titanium skidplate so that the they are not damaged during this phase. The ground crews now reinstall the pogos so that the pilot can taxi back. The mobile is monitoring the whole event.
So weit ich das nun verstanden habe, landet die U-2, und der Pilot haelt die Maschine so lange wie moeglich in der Waage, bis er sie auf einer Fluegelspitze absetzt, deswegen Titan-Spitzen. Dann werden die Pogos angebracht, und der Pilot kann nun zurueckrollen.
Ich meine, ich haette mal einen Bericht auch NTV gesehen, auf dem das Begleitfahrzeug neben einer U-2 bei der Landung herfuhr und die Crew den Piloten runtersprach und Korrekturen durchgab.
Hoffe, ich konnte helfen.
So long, then.
Brgds,
FlyingJoker32