in thunder ball, sean conery will dress up. although bonds is different, not so his product. when he had problems it ran on highly explosive hydrogen per rock side fuel. education extremely second. bell air space -- rock side fuel. >> they did work however. they found new interest of the population as sorts. the cross, the limitation with >>> the american rocket built system built a new hydrogen production belt. it was flown publicly only once at the 1999's celebration. but the built has become missing ár sun. one of the development is still a business. heller elevation used a propeller mounted beneath if engine. because the pilot steered he had proved to pool. they also it was good for only flight, it was still -- being designed by two aero space engineers in this airport. designers have yet to fly it. even so they say the solo trek will soar up to $900,000. it would fly 250 and in a car. >> your right hand is controlling the tilt of the ducks when you pull it, they tilt back and forth. that gives you forward motion and back ward motion. the left hand is your throttle. you t