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OT Don't quite see how this'll work???
On Wednesday, 29 November 2017 16:54:32 UTC, harry wrote:
https://www.express.co.uk/finance/ci...-Royce-Siemens Well if drone can fly by battery power why can't planes eventually run on batteries. |
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harry explained :
https://www.express.co.uk/finance/ci...-Royce-Siemens A long (very) extension lead? |
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I have not read it but to my knowledge Airbus have had an electric light
aircraft flying for some years. it had a somewhat limited range though so was only for research into battery tech. Brian -- ----- - This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please! "harry" wrote in message ... https://www.express.co.uk/finance/ci...-Royce-Siemens |
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On 29/11/17 16:54, harry wrote:
https://www.express.co.uk/finance/ci...-Royce-Siemens Well, as far as I can tell, the Outlander PHEV generates electricity and uses it to power electric motors when the batteries are 'flat'. Yes, I know, at first it seems inefficient but going by the consumption I'm getting on long trips- when the distance travelled on battery is tiny fraction of the trip or I've not been able to 'plug in', it seems remarkably good compared to a comparable petrol 4x4 which is actually lighter (but admittedly older). You can also charge the batteries from the engine. |
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"whisky-dave" wrote in message ... On Wednesday, 29 November 2017 16:54:32 UTC, harry wrote: https://www.express.co.uk/finance/ci...-Royce-Siemens Well if drone can fly by battery power why can't planes eventually run on batteries. If stupid, spineless May has her way we'll all be thin and light enough for battery powered flight. 50 billion is half of what steptoe would borrow, ludicrous. Dave, I told you way back down the road, Brexit will never happen. Don't worry yourself. |
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On 29-Nov-17 4:54 PM, harry wrote:
https://www.express.co.uk/finance/ci...-Royce-Siemens Why not? You need a lot less power to stay in the air than to get off the ground in the first place. -- -- Colin Bignell |
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On Wed, 29 Nov 2017 08:54:28 -0800 (PST), harry
coalesced the vapors of human experience into a viable and meaningful comprehension... https://www.express.co.uk/finance/ci...-Royce-Siemens The images don't match the copy, they relate to different stories, albeit Airbus related. -- Graham. %Profound_observation% |
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On 29/11/17 17:02, whisky-dave wrote:
On Wednesday, 29 November 2017 16:54:32 UTC, harry wrote: https://www.express.co.uk/finance/ci...-Royce-Siemens Well if drone can fly by battery power why can't planes eventually run on batteries. They already can. Just not for very long -- In todays liberal progressive conflict-free education system, everyone gets full Marx. |
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On 29/11/17 18:19, Nightjar wrote:
On 29-Nov-17 4:54 PM, harry wrote: https://www.express.co.uk/finance/ci...-Royce-Siemens Why not? You need a lot less power to stay in the air than to get off the ground in the first place. Indeed. criusie power on an efficient airframe is the same as the glide slope in terms of ft lb per second descent..but to gain altudude you need a lot more. You calcualate 1000fpm and turn that into watts per lb... -- If you tell a lie big enough and keep repeating it, people will eventually come to believe it. The lie can be maintained only for such time as the State can shield the people from the political, economic and/or military consequences of the lie. It thus becomes vitally important for the State to use all of its powers to repress dissent, for the truth is the mortal enemy of the lie, and thus by extension, the truth is the greatest enemy of the State. Joseph Goebbels |
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Graham. explained on 29/11/2017 :
The images don't match the copy, they relate to different stories, albeit Airbus related. The trick is that all of the passenger seats will be equipped with pedals, connected to generators, which then keep the batteries charged. |
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"whisky-dave" wrote in message ... On Wednesday, 29 November 2017 16:54:32 UTC, harry wrote: https://www.express.co.uk/finance/ci...-Royce-Siemens Well if drone can fly by battery power why can't planes eventually run on batteries. They tend to be a tad larger and fly rather further. |
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Rod Speed has brought this to us :
They tend to be a tad larger and fly rather further. ...and much faster. |
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In message , Brian Reay writes
Well, as far as I can tell, the Outlander PHEV generates electricity and uses it to power electric motors when the batteries are 'flat'. Yes, I know, at first it seems inefficient but going by the consumption I'm getting on long trips- when the distance travelled on battery is tiny fraction of the trip or I've not been able to 'plug in', it seems remarkably good compared to a comparable petrol 4x4 which is actually lighter (but admittedly older). You can also charge the batteries from the engine. Just for interest, because there's no way I can afford one, why are these relatively heavy hybrid 4 x 4's so lacking in towing performance compared with a petrol or diesel vehicle? The diesel Outlander is lighter, but can tow much more. -- Bill |
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On 29/11/2017 18:16, bm wrote:
"whisky-dave" wrote in message ... On Wednesday, 29 November 2017 16:54:32 UTC, harry wrote: https://www.express.co.uk/finance/ci...-Royce-Siemens Well if drone can fly by battery power why can't planes eventually run on batteries. If stupid, spineless May has her way we'll all be thin and light enough for battery powered flight. 50 billion is half of what steptoe would borrow, ludicrous. Dave, I told you way back down the road, Brexit will never happen. Don't worry yourself. Its not May that is costing us 50 billion its people like you! Just remember that when the suffering starts. |
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On 29/11/2017 19:20, Harry Bloomfield wrote:
Graham. explained on 29/11/2017 : The images don't match the copy, they relate to different stories, albeit Airbus related. The trick is that all of the passenger seats will be equipped with pedals, connected to generators, which then keep the batteries charged. Nah, there will be a fancy gym with all sorts of treadmills, rowing machines, etc |
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"dennis@home" wrote in message eb.com... On 29/11/2017 18:16, bm wrote: "whisky-dave" wrote in message ... On Wednesday, 29 November 2017 16:54:32 UTC, harry wrote: https://www.express.co.uk/finance/ci...-Royce-Siemens Well if drone can fly by battery power why can't planes eventually run on batteries. If stupid, spineless May has her way we'll all be thin and light enough for battery powered flight. 50 billion is half of what steptoe would borrow, ludicrous. Dave, I told you way back down the road, Brexit will never happen. Don't worry yourself. Its not May that is costing us 50 billion its people like you! Just remember that when the suffering starts. Have you actually heard of the schoolkid tripe coming from the EU? You wanna continue to be governed by those arseholes? At least (even without a backbone) our guvmint are OUR arseholes (some of 'em). Did you have a look at FCO 30/1048 or did you convince yourself it was ********? |
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On 30/11/2017 09:23, bm wrote:
"dennis@home" wrote in message eb.com... On 29/11/2017 18:16, bm wrote: "whisky-dave" wrote in message ... On Wednesday, 29 November 2017 16:54:32 UTC, harry wrote: https://www.express.co.uk/finance/ci...-Royce-Siemens Well if drone can fly by battery power why can't planes eventually run on batteries. If stupid, spineless May has her way we'll all be thin and light enough for battery powered flight. 50 billion is half of what steptoe would borrow, ludicrous. Dave, I told you way back down the road, Brexit will never happen. Don't worry yourself. Its not May that is costing us 50 billion its people like you! Just remember that when the suffering starts. Have you actually heard of the schoolkid tripe coming from the EU? You wanna continue to be governed by those arseholes? At least (even without a backbone) our guvmint are OUR arseholes (some of 'em). Did you have a look at FCO 30/1048 or did you convince yourself it was ********? Everything you say is ********. |
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"dennis@home" wrote in message eb.com... On 29/11/2017 18:16, bm wrote: "whisky-dave" wrote in message ... On Wednesday, 29 November 2017 16:54:32 UTC, harry wrote: https://www.express.co.uk/finance/ci...-Royce-Siemens Well if drone can fly by battery power why can't planes eventually run on batteries. If stupid, spineless May has her way we'll all be thin and light enough for battery powered flight. 50 billion is half of what steptoe would borrow, ludicrous. Dave, I told you way back down the road, Brexit will never happen. Don't worry yourself. Its not May that is costing us 50 billion Corse it is. Davis should be telling the EU to go and **** themselves and that Article 50 says nothing about any exit fee and neither does the Lisbon treaty. its people like you! Just another of your bare faced remoaner lies. Just remember that when the suffering starts. It wont, you watch. |
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"dennis@home" wrote in message eb.com... On 30/11/2017 09:23, bm wrote: "dennis@home" wrote in message eb.com... On 29/11/2017 18:16, bm wrote: "whisky-dave" wrote in message ... On Wednesday, 29 November 2017 16:54:32 UTC, harry wrote: https://www.express.co.uk/finance/ci...-Royce-Siemens Well if drone can fly by battery power why can't planes eventually run on batteries. If stupid, spineless May has her way we'll all be thin and light enough for battery powered flight. 50 billion is half of what steptoe would borrow, ludicrous. Dave, I told you way back down the road, Brexit will never happen. Don't worry yourself. Its not May that is costing us 50 billion its people like you! Just remember that when the suffering starts. Have you actually heard of the schoolkid tripe coming from the EU? You wanna continue to be governed by those arseholes? At least (even without a backbone) our guvmint are OUR arseholes (some of 'em). Did you have a look at FCO 30/1048 or did you convince yourself it was ********? Everything you say is ********. Terrific response Den. LMFAO. |
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In article ,
Bill wrote: Just for interest, because there's no way I can afford one, why are these relatively heavy hybrid 4 x 4's so lacking in towing performance compared with a petrol or diesel vehicle? The diesel Outlander is lighter, but can tow much more. Because towing can require a fairly constant power output. A hybrid can provide bursts of high power, but not sustained. They are basically town vehicles. I well remember hiring an early Prius. MPG around town was amazing. But on a long journey with a full load trying to keep up with motorway speeds, MPG was abysmal - far worse than an equivalent performance petrol car. let alone diesel. -- *Just give me chocolate and nobody gets hurt Dave Plowman London SW To e-mail, change noise into sound. |
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In article . com,
bm wrote: Its not May that is costing us 50 billion its people like you! Just remember that when the suffering starts. Have you actually heard of the schoolkid tripe coming from the EU? You wanna continue to be governed by those arseholes? At least (even without a backbone) our guvmint are OUR arseholes (some of 'em). Did you have a look at FCO 30/1048 or did you convince yourself it was ********? Wonder what your real agenda is by wanting to bring the country down - as would happen if we leave the EU without a trade agreement, and nothing to replace it in force? Apart from the wild assumptions from the likes of you that it will be easy to set up new trade agreements with other countries - despite all the evidence to the contrary. Seems to me just a hope of an old man to go back to when things were better for him, remembered through distinctly rose tinted specs. -- *Women who seek to be equal to men lack ambition. Dave Plowman London SW To e-mail, change noise into sound. |
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On Wednesday, 29 November 2017 18:48:26 UTC, The Natural Philosopher wrote:
On 29/11/17 17:02, whisky-dave wrote: On Wednesday, 29 November 2017 16:54:32 UTC, harry wrote: https://www.express.co.uk/finance/ci...-Royce-Siemens Well if drone can fly by battery power why can't planes eventually run on batteries. They already can. Just not for very long Solar Impulse 2, did OK |
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On 29-Nov-17 7:20 PM, Harry Bloomfield wrote:
Graham. explained on 29/11/2017 : The images don't match the copy, they relate to different stories, albeit Airbus related. The trick is that all of the passenger seats will be equipped with pedals, connected to generators, which then keep the batteries charged. A good way to avoid DVT :-) -- -- Colin Bignell |
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In article ,
Jethro_uk wrote: On Wed, 29 Nov 2017 18:52:19 +0000, The Natural Philosopher wrote: On 29/11/17 18:19, Nightjar wrote: On 29-Nov-17 4:54 PM, harry wrote: https://www.express.co.uk/finance/ci...brid-electric- engine-Rolls-Royce-Siemens Why not? You need a lot less power to stay in the air than to get off the ground in the first place. Indeed. criusie power on an efficient airframe is the same as the glide slope in terms of ft lb per second descent..but to gain altudude you need a lot more. This is where engineering and population spectacularly fail to intersect. Given the location of most busy airports, a rapid ascent is essential in the event of a problem developing (as the film "Sully" demonstrates). Now if airports were much more coastal (given the one thing the UK has is a practically infinite coastline) then it would make sense. There's always Sumburgh. Both end of the runway have the sea! But it's interesting that the UK has tended to site it's big cities markedly inland. perhaps because people drink fresh water? -- from KT24 in Surrey, England |
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"Dave Plowman (News)" wrote in message ... In article . com, bm wrote: Its not May that is costing us 50 billion its people like you! Just remember that when the suffering starts. Have you actually heard of the schoolkid tripe coming from the EU? You wanna continue to be governed by those arseholes? At least (even without a backbone) our guvmint are OUR arseholes (some of 'em). Did you have a look at FCO 30/1048 or did you convince yourself it was ********? Wonder what your real agenda is by wanting to bring the country down - as would happen if we leave the EU without a trade agreement, and nothing to replace it in force? Apart from the wild assumptions from the likes of you that it will be easy to set up new trade agreements with other countries - despite all the evidence to the contrary. Seems to me just a hope of an old man to go back to when things were better for him, remembered through distinctly rose tinted specs. Listen old man, it's the anti-Brit remoaners who are doing for us instead of getting behind the country. We need to grow some balls and stand on our own two feet. You and your ilk seem to be scared ****less. In any case it'll never happen, Dave. We don't have a democracy. Your stash of cash will see you through, whatever happens. |
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In article om,
bm wrote: Seems to me just a hope of an old man to go back to when things were better for him, remembered through distinctly rose tinted specs. Listen old man, it's the anti-Brit remoaners who are doing for us instead of getting behind the country. We need to grow some balls and stand on our own two feet. Telling others what they must do again, eh? To get you out of the **** you've brought about? You'd make an ideal General. Sending others to their deaths from the comfort of your London office. You and your like got us in this mess. Through not being able to reason through the likelihood of events if we left. Despite being told often enough. You and your ilk seem to be scared ****less. In any case it'll never happen, Dave. We don't have a democracy. Your stash of cash will see you through, whatever happens. Your jealousy doesn't get less, then? -- *White with a hint of M42* Dave Plowman London SW To e-mail, change noise into sound. |
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On Thursday, 30 November 2017 13:20:34 UTC, bm wrote:
We need to grow some balls and stand on our own two feet. You and your ilk seem to be scared ****less. I would be if it were the other way round. |
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"Dave Plowman (News)" wrote in message ... In article om, bm wrote: Seems to me just a hope of an old man to go back to when things were better for him, remembered through distinctly rose tinted specs. Listen old man, it's the anti-Brit remoaners who are doing for us instead of getting behind the country. We need to grow some balls and stand on our own two feet. Telling others what they must do again, eh? To get you out of the **** you've brought about? If you could bother to read, I suggested what we NEED to do. You'd make an ideal General. Sending others to their deaths from the comfort of your London office. You and your like got us in this mess. Through not being able to reason through the likelihood of events if we left. Despite being told often enough. It wouldn't be a mess if subservient anti-Brits like you would support YOUR country instead of continually trembling and talking it down. You and your ilk seem to be scared ****less. In any case it'll never happen, Dave. We don't have a democracy. Your stash of cash will see you through, whatever happens. Your jealousy doesn't get less, then? You really are the big jumped-up ego tripster. Don't worry about me old son, my stash is fine even if steptoe gets in. |
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On 30/11/2017 10:30, bm wrote:
8 Everything you say is ********. Terrific response Den. LMFAO. See, more ********. |
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On 30/11/2017 13:20, bm wrote:
"Dave Plowman (News)" wrote in message ... In article . com, bm wrote: Its not May that is costing us 50 billion its people like you! Just remember that when the suffering starts. Have you actually heard of the schoolkid tripe coming from the EU? You wanna continue to be governed by those arseholes? At least (even without a backbone) our guvmint are OUR arseholes (some of 'em). Did you have a look at FCO 30/1048 or did you convince yourself it was ********? Wonder what your real agenda is by wanting to bring the country down - as would happen if we leave the EU without a trade agreement, and nothing to replace it in force? Apart from the wild assumptions from the likes of you that it will be easy to set up new trade agreements with other countries - despite all the evidence to the contrary. Seems to me just a hope of an old man to go back to when things were better for him, remembered through distinctly rose tinted specs. Listen old man, it's the anti-Brit remoaners who are doing for us instead of getting behind the country. We are behind the country unlike brex****eers who put their own interests first and don't care what happens to others. We need to grow some balls and stand on our own two feet. You and your ilk seem to be scared ****less. So scared that we still say you talk ********. You are wrong and are so scared of being found out you have to lie about everything. In any case it'll never happen, Dave. We don't have a democracy. Your stash of cash will see you through, whatever happens. Mine will but I probably won't leave much for the kids, much like brexit won't. |
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"dennis@home" wrote in message web.com... On 30/11/2017 13:20, bm wrote: "Dave Plowman (News)" wrote in message ... In article . com, bm wrote: Its not May that is costing us 50 billion its people like you! Just remember that when the suffering starts. Have you actually heard of the schoolkid tripe coming from the EU? You wanna continue to be governed by those arseholes? At least (even without a backbone) our guvmint are OUR arseholes (some of 'em). Did you have a look at FCO 30/1048 or did you convince yourself it was ********? Wonder what your real agenda is by wanting to bring the country down - as would happen if we leave the EU without a trade agreement, and nothing to replace it in force? Apart from the wild assumptions from the likes of you that it will be easy to set up new trade agreements with other countries - despite all the evidence to the contrary. Seems to me just a hope of an old man to go back to when things were better for him, remembered through distinctly rose tinted specs. Listen old man, it's the anti-Brit remoaners who are doing for us instead of getting behind the country. We are behind the country unlike brex****eers who put their own interests first and don't care what happens to others. We need to grow some balls and stand on our own two feet. You and your ilk seem to be scared ****less. So scared that we still say you talk ********. You are wrong and are so scared of being found out you have to lie about everything. In any case it'll never happen, Dave. We don't have a democracy. Your stash of cash will see you through, whatever happens. Mine will but I probably won't leave much for the kids, much like brexit won't. Hey Dennis, grow some. You're another one subservient to your precious EU. If anyone talks ********, they do. |
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"Dave Plowman (News)" wrote in message ... In article . com, bm wrote: Its not May that is costing us 50 billion its people like you! Just remember that when the suffering starts. Have you actually heard of the schoolkid tripe coming from the EU? You wanna continue to be governed by those arseholes? At least (even without a backbone) our guvmint are OUR arseholes (some of 'em). Did you have a look at FCO 30/1048 or did you convince yourself it was ********? Wonder what your real agenda is by wanting to bring the country down - as would happen if we leave the EU without a trade agreement, Even sillier than you usually manage, and that’s saying something. How odd that all of Australia, NZ, USA, India, Japan, Korea etc etc etc manage fine outside the EU without a trade agreement. Are you seriously trying to claim that Britain is so ****ing hopeless economically that it wouldn’t be able to do fine too ? and nothing to replace it in force? There is always the WTO to replace it and that remains in force. Apart from the wild assumptions from the likes of you that it will be easy to set up new trade agreements with other countries - Corse it will and isnt necessary anyway, Britain is free to trade under the WTO rules, just like it already does now with all but the EU. despite all the evidence to the contrary. Not a shred of evidence to the contrary, just remoaner lies. Seems to me just a hope of an old man to go back to when things were better for him, remembered through distinctly rose tinted specs. Then you need to get your seems machinery seen to, BAD. |
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"whisky-dave" wrote in message ... On Wednesday, 29 November 2017 18:48:26 UTC, The Natural Philosopher wrote: On 29/11/17 17:02, whisky-dave wrote: On Wednesday, 29 November 2017 16:54:32 UTC, harry wrote: https://www.express.co.uk/finance/ci...-Royce-Siemens Well if drone can fly by battery power why can't planes eventually run on batteries. They already can. Just not for very long Solar Impulse 2, did OK Pity about the number of pax it can carry. Like none, zero, nada, ziltch. |
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In article om,
bm wrote: "Dave Plowman (News)" wrote in message ... In article om, bm wrote: Seems to me just a hope of an old man to go back to when things were better for him, remembered through distinctly rose tinted specs. Listen old man, it's the anti-Brit remoaners who are doing for us instead of getting behind the country. We need to grow some balls and stand on our own two feet. Telling others what they must do again, eh? To get you out of the **** you've brought about? If you could bother to read, I suggested what we NEED to do. Speaking for others again. Which is just my point below. You'd make an ideal General. Sending others to their deaths from the comfort of your London office. You and your like got us in this mess. Through not being able to reason through the likelihood of events if we left. Despite being told often enough. It wouldn't be a mess if subservient anti-Brits like you would support YOUR country instead of continually trembling and talking it down. That's certainly more assumptions than even you usually manage. But I'll tell you something. I believe in improving the lot of the whole country - not just the select few like you wannabe Tories. You and your ilk seem to be scared ****less. In any case it'll never happen, Dave. We don't have a democracy. Your stash of cash will see you through, whatever happens. Your jealousy doesn't get less, then? You really are the big jumped-up ego tripster. Given how often you mention what you think are my circumstances, jealousy is the only reasonable conclusion. Don't worry about me old son, my stash is fine even if steptoe gets in. That character is ficticious and the actor who played him long since dead. Is your 'stash' the same? -- *It ain't the size, it's... er... no, it IS ..the size. Dave Plowman London SW To e-mail, change noise into sound. |
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"Dave Plowman (News)" wrote in message ... snip That's certainly more assumptions than even you usually manage. But I'll tell you something. I believe in improving the lot of the whole country - not just the select few like you wannabe Tories. Then why the hell do you support steptoe? Do you use a white stick? Told you before, i'm no wannabe Tory OR Labour. I'll vote for who I believe can do the job at the time. As it happens, none of them can. You and your ilk seem to be scared ****less. In any case it'll never happen, Dave. We don't have a democracy. Your stash of cash will see you through, whatever happens. Your jealousy doesn't get less, then? You really are the big jumped-up ego tripster. Given how often you mention what you think are my circumstances, jealousy is the only reasonable conclusion. No Dave, I NEVER comment on what your circumstances might be. Your crystal ball comments on mine though. I just take the **** out of what you believe yourself to be. I.e, a sound engineer, just one step down from the monarchy. Don't worry about me old son, my stash is fine even if steptoe gets in. That character is ficticious and the actor who played him long since dead. He's resurrected and leader of Liebor. Is your 'stash' the same? Don't you worry about my stash, it's fine thanks. Pulease don't start with the "i've got more money than you" crap. Seems you're heading that way. |
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On 30/11/2017 12:08, whisky-dave wrote:
On Wednesday, 29 November 2017 18:48:26 UTC, The Natural Philosopher wrote: On 29/11/17 17:02, whisky-dave wrote: On Wednesday, 29 November 2017 16:54:32 UTC, harry wrote: https://www.express.co.uk/finance/ci...-Royce-Siemens Well if drone can fly by battery power why can't planes eventually run on batteries. They already can. Just not for very long Solar Impulse 2, did OK You do know why it flew in the direction it did? You won't see a return journey from it. Hot air balloons did it quicker with more passengers. |
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In message , "Dave Plowman (News)"
writes In article , Bill wrote: Just for interest, because there's no way I can afford one, why are these relatively heavy hybrid 4 x 4's so lacking in towing performance compared with a petrol or diesel vehicle? The diesel Outlander is lighter, but can tow much more. Because towing can require a fairly constant power output. A hybrid can provide bursts of high power, but not sustained. They are basically town vehicles. I well remember hiring an early Prius. MPG around town was amazing. But on a long journey with a full load trying to keep up with motorway speeds, MPG was abysmal - far worse than an equivalent performance petrol car. let alone diesel. OK, but my first LR 110 with its ancient, low powered but utterly reliable 2.25 petrol engine could barely reach motorway speeds on its own, let alone keep up. It was rated for towing 3.5 tons and we towed lower weights with it fine. I always thought that the towing rating was based on structural strength and weight of the towing vehicle rather than power. A heavy hybrid 4 x 4 might not be for me, it seems. -- Bill |
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On Thursday, 30 November 2017 21:04:53 UTC, Rod Speed wrote:
"whisky-dave" wrote in message ... On Wednesday, 29 November 2017 18:48:26 UTC, The Natural Philosopher wrote: On 29/11/17 17:02, whisky-dave wrote: On Wednesday, 29 November 2017 16:54:32 UTC, harry wrote: https://www.express.co.uk/finance/ci...-Royce-Siemens Well if drone can fly by battery power why can't planes eventually run on batteries. They already can. Just not for very long Solar Impulse 2, did OK Pity about the number of pax it can carry. Like none, zero, nada, ziltch. How many pax could the wright brothers plane carry ? |
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On Friday, 1 December 2017 09:20:05 UTC, dennis@home wrote:
On 30/11/2017 12:08, whisky-dave wrote: On Wednesday, 29 November 2017 18:48:26 UTC, The Natural Philosopher wrote: On 29/11/17 17:02, whisky-dave wrote: On Wednesday, 29 November 2017 16:54:32 UTC, harry wrote: https://www.express.co.uk/finance/ci...-Royce-Siemens Well if drone can fly by battery power why can't planes eventually run on batteries. They already can. Just not for very long Solar Impulse 2, did OK You do know why it flew in the direction it did? You won't see a return journey from it. Hot air balloons did it quicker with more passengers. You do know why planes follow the routes they do don't you ? |
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