Some Kerbals have gotten to thinking it may be better to fly rockets to high altitudes and then launch them from there to save on that costly fuel needed for those first 10,000 meters of altitude, but they need help getting those rockets up there. They are looking for working prototypes of aircraft that run only on air-powered engines, which launch horizontally, can deliver a payload to 10,000m and land safely. The criteria they are judging on is the payload capacity of the aircraft. They are only interested in launching big rockets. So the winner will be determined by the aircraft which can deliver the most full Rockomax Jumbo-64 fuel tanks to an altitude of 10,000m+, drop them safely then land back at the airport. Should multiple entries be able to deliver the same number of Jumbo-64 fuel tanks, then ties will be broken by the number of additional full X200-16 fuel tanks which can be dropped with the 64s. If there is STILL a tie, then the highest altitude at which the tanks were dropped will break the tie. No mods should be used. As proof the require a photo of the aircraft in flight with the fuel tanks, an image of the fuel tanks being released, an image of the empty plane still flying and finally an image of the empty plane having landed back at home. As proof that it is possible, they submit their currently working prototype. http://imgur.com/a/9SXph PS. it was not until they inspected these photos that they realized their best engineer forgot to install a right wing landing gear. Results: Pirke: 4! Jumbo tanks! That beast looks more like a flying aircraft carrier than a plane! the_bT: 3 Jumbo tanks (along with 3 X300-32s, this might be a hard one to beat)