On Mon, May 16, 2016 at 8:58 AM, Mike Borgelt < [email protected]> wrote:
> More here: > http://www.guinnessworldrecords.com/news/2016/4/confirmed-franky-zapata-sets-new-farthest-hoverboard-flight-record-in-france-427011 > > If he was at close to full thrust he wouldn't have engine out capability, > which is one of the major problems of all vertical lift aircraft. > Do the numbers. With the platform tilted at 15 degrees off vertical he > still gets a vertical thrust component of 96.6% of hover. > He also gets 26.6% horizontal component. Presumably if he loses an engine > he goes vertical and slows down. > > I don't see anything impossible here. > > Mike > > "Presumably if he loses an engine he goes vertical and slows down." More like "Presumably if he loses an engine he goes vertical and goes down...... hopefully at a speed that is not fatal. Of course as the vertical speed downwards increases, the engine thrust decreases significantly..... not a good picture. It looks like a manufactured blurb to attract investors.... (who don't understand much physics). It resembles the blurb for the compressed air car that made ridiculous performance claims. Promotional rubbish. This might have some glimmer of truth, but unless jet technology improves by about 500% it is not going to deliver any practicality, no matter how glossy the brochure is.
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