Head in the clouds Posted May 5, 2015 Posted May 5, 2015 Slovakian engineering ... They've certainly made a lot of progress since the last version which took more than a kilometre to get airborne due to the hopeless position of the 'landing gear/wheels' preventing any kind of rotation for take-off. They seem to have improved that situation with variable wing incidence which is not a simple engineering undertaking. Some pretty clever CGI incorporated into the video, which is a bit disappointing. The projected price of "several hundreds of thousands of Euro" might be a bit of a showstopper though, methinks ... 1
facthunter Posted May 5, 2015 Posted May 5, 2015 You could buy a good plane and a good car for less. The design of an aeroplane is compromised already. If it has to be a car as well. good luck to you. Be fun in a gusty crosswind landing as well as the lift off situation requiring expensive design features. Folding wings with variable incidence. that wouldn't come without a weight /cost/reliability and strength, penalty.. I'll pass thanx. Nev 2
PA. Posted May 5, 2015 Posted May 5, 2015 Flying motorbike, that's what I'm waiting for. What sort of endurance are you looking for? 1
Marty_d Posted May 5, 2015 Posted May 5, 2015 What sort of endurance are you looking for? Bit more than that, plus the runway looks a bit steep to me.
red750 Posted May 5, 2015 Posted May 5, 2015 Flying motorbike, that's what I'm waiting for. This might be as near as you'll get at the moment. https://www.youtube.com/watch?v=SgHSaNtAMjs
mkennard Posted May 5, 2015 Posted May 5, 2015 Flying motorbike, that's what I'm waiting for. http://www.samsonmotorworks.com I would like this one please.
Marty_d Posted May 5, 2015 Posted May 5, 2015 here ya go Marty[ATTACH=full]35491[/ATTACH] That's what I'm talking 'BOUT. I'll take one please, with an extra anti-grav unit just in case. (What's the empty and MTOW?)
Phil Perry Posted May 8, 2015 Posted May 8, 2015 That's what I'm talking 'BOUT.I'll take one please, with an extra anti-grav unit just in case. (What's the empty and MTOW?) With the Anti - Grav unit energised Marty,. . .it's . . .Zero,. . .and Zero. Sorted. 1
Marty_d Posted May 8, 2015 Posted May 8, 2015 Oh, very well done sir. Answer of the week! Yes when anti-grav comes along it'll probably be "maximum inertial manoeuvring mass" or something.
Phil Perry Posted May 8, 2015 Posted May 8, 2015 Oddly enough,. . . I went to a sort of pseudo scientific convention in Melbourne where one of the guest speakers was a guy called Stan Deyo ( not sure if I've spelled that correctly. . .) he wrote a book and produced a series of half hour chat cassette tapes entitled "The Cosmic Conspriacy" which mentioned many well known scientists of the day, Tesla was one of them. . .the subject of Electro - anti - gravitics was mentioned. At the bar during a break, I asked him "What about inertia ? " . . .he replied "Yes,. . . I'll get around to that . . ." but regrettably,. . .he didn't. . . . Electro anti- grav devices I've seen. . .these are easily explicable, though limited in scope with present technology,. . .but I believe that it is going to be somewhat difficult to circumvent the physics of inertia, and I would be delighted to look at the arithmetic if such formulaic wonders exist at the moment . . . . . Physics is a wonderful subject, but in equal measure, it CAN also bugger up some clever theories before they get off the ground . . .( no pun intended ) 1
Marty_d Posted May 9, 2015 Posted May 9, 2015 Oddly enough,. . .I went to a sort of pseudo scientific convention in Melbourne where one of the guest speakers was a guy called Stan Deyo ( not sure if I've spelled that correctly. . .) he wrote a book and produced a series of half hour chat cassette tapes entitled "The Cosmic Conspriacy" which mentioned many well known scientists of the day, Tesla was one of them. . .the subject of Electro - anti - gravitics was mentioned. At the bar during a break, I asked him "What about inertia ? " . . .he replied "Yes,. . . I'll get around to that . . ." but regrettably,. . .he didn't. . . . Electro anti- grav devices I've seen. . .these are easily explicable, though limited in scope with present technology,. . .but I believe that it is going to be somewhat difficult to circumvent the physics of inertia, and I would be delighted to look at the arithmetic if such formulaic wonders exist at the moment . . . . . Physics is a wonderful subject, but in equal measure, it CAN also bugger up some clever theories before they get off the ground . . .( no pun intended ) Star Trek has it sorted. "Inertial dampers". They let you go from stationary to warp 9 without being reduced to a pink smear at the back of the spaceship. If the gravity control was good enough, inertia would not be problem. Reason being, all your manoeuvring would be by adjusting the gravity direction... so to hover, you'd have 1G in the direction of the sky, to move forward you'd direct nG in front of you (with a sufficient angle upwards to keep you at the same level). Any changes in direction simply mean you're "falling" in a new direction, so theoretically you'd be able to do 90 degree turns at full speed with no inertial forces at all. Of course your machine wouldn't need wings, so a BRS would probably be a good idea. Possibly a pressurised cabin and oxygen too, in case of accidental forays into space. 1
facthunter Posted May 9, 2015 Posted May 9, 2015 IF you are pulled by gravity in a vacuum you will be weightless at all times and just keep accelerating to whatever limit applies, like speed of light. Nev 1
Marty_d Posted May 9, 2015 Posted May 9, 2015 Actually it wouldn't matter if you're in a vacuum or not. If your craft is sitting in midair pulled towards the Earth by 1G and your device is keeping you there by pulling you away from the Earth at 1G, the total forces on you are 0G, so you're weightless. No?
facthunter Posted May 9, 2015 Posted May 9, 2015 The plane will reach a terminal velocity and then you will then weigh 1 G. Nev
Phil Perry Posted May 9, 2015 Posted May 9, 2015 Hmm,. . . . prob too much BV product last night, I forgot to mention Maglev trains, or rather, Magnetic Repulsive Technology trains,. . .but I guess they dropped the repulsive bit, . . .just in case someone didn't like the sound of it, . . .but they are, in reality "Captive" RMT trains,. .as they can't work unless they are still hovering over a rail. . . .mono or otherwise. . . And I invented the Gravitational Diversity System many years ago, whilst still corresponding regularly with Isaac Asimov, ( seriously ) I said,, ,.all you need is a simple (! ) system whereby you are able to "Tilt" the gravitational effect forward to accellerate your car, and then reverse this effect in good and proportionate time to decellearate. . . . .I regret that we didn't discuss this with reference to flying appliances. . . . Regrettably, Isaac died before I could get to that . . . . He also used to write to my mate John Whalley, ( now sadly deceased ) who lived in Mansfield, Brissy, and Isaac reckoned that there must be summat in the Brisbane water supply which created blokes like us. . . . . He told me that I was a lot more silly than HE was. . . . . but we both agreed that it was a terrible day when the Deane ( sort of Perpetual Motion ) Drive was disproved,. . .but,. . .That's another story. . . .mentioned and similarly bemoaned previously herein and upon this forum the day and year first hereinbefore written and forgotten. . . . . . Another of my regular correspondents was Sir Patrick Moore, of the BBC series "The Sky at Night". . . . . ( Before he was benighted and became the Sky at KNIGHT ) another really friendly bloke of bountiful astronomical wisdom, always willing to connect with his public. . . whom I miss quite a lot. His show has now been strangled and made politically correct with a Black lady co-presenter. . . .and has been dumbed down and reduced to one half hour show per month. . . .I just Lurve the BBC. . . . Got no more celebrities to write to nowadays. . . . . I exchanged letters with E.E. "Doc" Smith,. . .author of the sci-fi book series, " Gray Lensman" and "Children of the Lens" and other similar titles,. . .but he was REALLY away with the fairies,. . .and none of his sci -fi was based upon anything in particular. . . . Phil. . . just having a muse. . . . 2
Phil Perry Posted May 9, 2015 Posted May 9, 2015 Er,. . .Nev,. . . If you consider an evacuated room ( Vacuum ) on Earth,. . . the "Small Force" would still apply. ie, Earth's gravity would and could not be affected by the lack of atmospheric pressure. . .I must have mis-read the thrust of your point on that. If you dropped a feather, and a lump of steel from some height in the aforementioned evacuated chamber, they would fall, in line with the small force, at exactly the same velocity towards the centre of the Earth,. . . irespective of weight, as there would be no air resistance to impede either item. . . . ( Seen that one on the telly, so it MUST be true. . .! ) In interstellar space,. . . If there is no celestial body nearby to exert a large or small force gravitational influence upon a given item,. . . BUT,. . . a rapid change of direction, according to Newtonian physics,. . .OUGHT to produce a force of some form,. . . . This is getting too heavy for my brain ( well, you started it Phil. . .No I didn't . . .it was Marty and Nev,. . .No it wasn't . . . [ . . .is this the five minute argument ?,. . .or the full half hour ? ? ? ] . . . )
Jaba-who Posted May 9, 2015 Posted May 9, 2015 Leaving the esoterica aside and getting back to the flying cars etc. We have often talked about them and played the various videos at our aeroclub on a Friday night over drinks and the general consensus has been they are not a very good idea. The main ones being: They are always a compromise and are usually either or both a poor car and a poor plane. Cost is always so high that you could afford a good plane and a good car for way less than the cost of the aircraft If you are travelling you could fly in good plane , hire a good car or get the landlord of the hotel to pick you up. Our club does weeklong round australia somewhere flights with anywhere up to 25 people most years and we get buses, tour companies etc to do the ferrying, hire minibuses etc - there's always some way of getting transport for often a few dollars a head. Take your aircraft on the road and basically the slightest ding, even a scratch in the local shopping centre car park, and you are grounded. Potentially many many kms from home. Good chance you would spend many flying trips driving home. 3
facthunter Posted May 10, 2015 Posted May 10, 2015 Pretty good summary. I want an aeroplane to fly well even, if it looks crook. It's a very specialised sort of craft operating in three dimensions and not on rails or a string (skyhook) just relying on reaction to airflow. Any thing that compromises that in the design, doesn't belong there. A plane should spend minimum time on the ground. It's designed to fly and the air is it's element. Nev 1
palexxxx Posted May 10, 2015 Posted May 10, 2015 Hmm,. . . . prob too much BV product last night, I forgot to mention Maglev trains, or rather, Magnetic Repulsive Technology trains,. . .but I guess they dropped the repulsive bit, . . .just in case someone didn't like the sound of it, . . .but they are, in reality "Captive" RMT trains,. .as they can't work unless they are still hovering over a rail. . . .mono or otherwise. . . And I invented the Gravitational Diversity System many years ago, whilst still corresponding regularly with Isaac Asimov, ( seriously ) I said,, ,.all you need is a simple (! ) system whereby you are able to "Tilt" the gravitational effect forward to accellerate your car, and then reverse this effect in good and proportionate time to decellearate. . . . .I regret that we didn't discuss this with reference to flying appliances. . . . Regrettably, Isaac died before I could get to that . . . . He also used to write to my mate John Whalley, ( now sadly deceased ) who lived in Mansfield, Brissy, and Isaac reckoned that there must be summat in the Brisbane water supply which created blokes like us. . . . .He told me that I was a lot more silly than HE was. . . . . but we both agreed that it was a terrible day when the Deane ( sort of Perpetual Motion ) Drive was disproved,. . .but,. . .That's another story. . . .mentioned and similarly bemoaned previously herein and upon this forum the day and year first hereinbefore written and forgotten. . . . . . Another of my regular correspondents was Sir Patrick Moore, of the BBC series "The Sky at Night". . . . . ( Before he was benighted and became the Sky at KNIGHT ) another really friendly bloke of bountiful astronomical wisdom, always willing to connect with his public. . . whom I miss quite a lot. His show has now been strangled and made politically correct with a Black lady co-presenter. . . .and has been dumbed down and reduced to one half hour show per month. . . .I just Lurve the BBC. . . . Got no more celebrities to write to nowadays. . . . . I exchanged letters with E.E. "Doc" Smith,. . .author of the sci-fi book series, " Gray Lensman" and "Children of the Lens" and other similar titles,. . .but he was REALLY away with the fairies,. . .and none of his sci -fi was based upon anything in particular. . . . Phil. . . just having a muse. . . . Hmm, seems like you're a dangerous person to correspond with. Everyone you write to ends up dying. 1
facthunter Posted May 10, 2015 Posted May 10, 2015 Everyone I know of will end up dying. None of us are getting out of this alive. Nev
palexxxx Posted May 10, 2015 Posted May 10, 2015 Everyone I know of will end up dying. None of us are getting out of this alive. Nev Yes .... hence my tongue in cheek comment.
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