Show The X 15 North American Aviation i is working wording on a rocket powered aircraft which is expected to fly 1000 miles miJ an hour 1 hour n in 1958 With this tremendous s ssp sp speed d which wo would ld take Hike jt it i iacross across the te United d States t tes and back in ip just a little over yer one hour the X 15 is ls expected ed t to attain a record altitude also Experts believe U the e. e X 15 may be able to attain an an altitude alti- alti altitude tude of ol feet feet winch would be almost forty fort miles miles up into outer uter space pace Th The Thames t test st pilot pct who will will fly the tle X 15 I Scott cott Crossfield says that the X 15 will have a better emergency emergency emer- emer gency ency out bail procedure than anY ny previous rocket aircraft Crossfield is living with the project following the design from rom the print blue-print stage right righton on n through to completion and will vill be completely familiar with the X 15 when it is ready for or flight It is a assumed 1 that thattie Ute the tie X 15 will be dropped from the lie belly of a larger plane as s were earlier prototypes of rocket rocke aircraft which will enable enable en- en able it to economize economize on its liquid fuel great amounts of which are required to push a rocket through relatively thick air at low altitudes Alre Already the X X-l and X 2 aye jaye Jea reached speeds of 2000 miles an l hour our and hay have at at- tamed altitudes of about 90 00 feet Obviously about t twice wice the performance capability capability capa capa- is expected from the X Rocket planes were used sed by bythe y he the h G Germans in World War Var II I Ial I al although hough many people are not aware of it jt but they were too successful owing to a very limited flight time and because because be pe- cause of oJ diff difficulty c experienced m lJ sn safely landing 1 them If however l wever the X 15 attains at at- attains attains at- at a performance which the thep experts p r s expect i it seems that rocket may mc move vc into the in fighter p or f field of aviation |