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Groups > sci.physics > #604835

Re: Ion drive for aircraft imminent.

Subject Re: Ion drive for aircraft imminent.
Newsgroups sci.electronics.design, sci.physics, rec.arts.sf.science, sci.space.policy
References (8 earlier) <MPG.329363c6a6707ebb989862@news.eternal-september.org> <hghWz.176740$2P.173948@fx38.am4> <ptcj2cdisnjtv3tl66er4ahi0a2no4nf5c@4ax.com> <cgjWz.123777$uG.100758@fx30.am4> <2e4k2c1ubtjkmi9304orcea0ur74hji3oh@4ax.com>
From Tom Gardner <spamjunk@blueyonder.co.uk>
Message-ID <_hsWz.199871$IO.151045@fx45.am4> (permalink)
Organization virginmedia.com
Date 2016-11-15 00:04 +0000

Cross-posted to 4 groups.

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On 14/11/16 19:35, Fred J. McCall wrote:
> Tom Gardner <spamjunk@blueyonder.co.uk> wrote:
>
>> On 14/11/16 12:54, Fred J. McCall wrote:
>>> Tom Gardner <spamjunk@blueyonder.co.uk> wrote:
>>>
>>>> On 14/11/16 11:02, Jeff Findley wrote:
>>>>> In article <0g2j2chkqnifba356q8ek0cvesu22mn07i@4ax.com>,
>>>>> fjmccall@gmail.com says...
>>>>>>
>>>>>> Tom Gardner <spamjunk@blueyonder.co.uk> wrote:
>>>>>>
>>>>>>> On 14/11/16 02:21, Fred J. McCall wrote:
>>>>>>>> jimp@specsol.spam.sux.com wrote:
>>>>>>>>
>>>>>>>>>
>>>>>>>>> Aircraft engines don't lift anything.
>>>>>>>>>
>>>>>>>>
>>>>>>>> Of course they do.  It's that whole Lift/Drag thing.  Remove the
>>>>>>>> engines and airplanes don't go up.
>>>>>>>
>>>>>>> Except when they do, and that can be higher than commercial
>>>>>>> airliners :)
>>>>>>> https://en.wikipedia.org/wiki/Flight_altitude_record#Gliders
>>>>>>>
>>>>>>
>>>>>> Gliders aren't airplanes and they don't get up there without something
>>>>>> with an engine.
>>>>>
>>>>> True.  Whether it is a tow plane (like seems common in the US), a motor
>>>>> on a winch for a cable launch (common in Europe, or so I'm told), or
>>>>> even "self tow" (engine or motor and propeller on the glider) a glider
>>>>> would have a hard time getting off the ground without some sort of
>>>>> engine/motor.
>>>>
>>>> False. See my other reply for videos of examples.
>>>>
>>>> (But in Europe winches are more common than tugs, and
>>>> a typical release height is 2kft, but higher is possible.
>>>> A normal tug release height is 2kft, sometimes 3kft)
>>>>
>>>>
>>>>> And before anyone mentions that a glider can stay aloft pretty much "all
>>>>> day" by riding thermals, yes it can.  But, if you're spending all day
>>>>> searching for the best thermals, you're not spending any time going from
>>>>> point A to point B, so they're not terribly useful as transportation.
>>>>
>>>> True, but they are a damn sight more fun :)
>>>>
>>>> (Besides, ISTR sailing ships seem to have been
>>>> used for transportation, even though they were
>>>> sometimes becalmed :) )
>>>>
>>>
>>> 'Becalmed in a glider means you land.  Then you have to figure out how
>>> to get it back up in the air again.  And you'd better have places to
>>> land all along the way.
>>>
>>
>> Standard operating procedure: pick a field, pluck off the wings,
>> put glider in trailer, go home. Also many gliders have "get
>> out of trouble" engines, but they expect not to use them.
>>
>> But the point is not whether gliders are practical means
>> of transport (they aren't), but whether you need engines
>> to go up. (You don't - unless you count the sun as an engine
>> :) )
>>
>
> So the point is irrelevant, since gliders aren't airplanes

airplane noun
1. a heavier-than-air aircraft kept aloft by the upward
thrust exerted by the passing air on its fixed wings and
driven by propellers, jet propulsion, etc.
2. any similar heavier-than-air aircraft, as a
glider or helicopter.
http://www.dictionary.com/browse/airplane


> and they
> practically never get off the ground without an engine.

They go up without an engine, which contradicts
your original statement. I've gone up at 1000ft/min
until reaching cloudbase, pulling 2.5-3G continuously
while doing it. So did the other glider ~300ft away.

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Thread

Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-01 11:09 -0400
  Re: Ion drive for aircraft imminent. John Larkin <jjlarkin@highlandtechnology.com> - 2016-11-01 08:51 -0700
    Re: Ion drive for aircraft imminent. bitrex <bitrex@de.lete.earthlink.net> - 2016-11-01 14:27 -0400
      Re: Ion drive for aircraft imminent. krw <krw@nowhere.com> - 2016-11-01 22:01 -0400
    Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-03 09:16 -0400
      Re: Ion drive for aircraft imminent. John Larkin <jjlarkin@highlandtechnology.com> - 2016-11-03 08:33 -0700
        Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-04 07:29 -0400
          Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-04 07:35 -0400
            Re: Ion drive for aircraft imminent. Fred J. McCall <fjmccall@gmail.com> - 2016-11-04 12:20 -0700
              Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-06 12:23 -0500
                Re: Ion drive for aircraft imminent. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2016-11-06 16:28 -0500
                Re: Ion drive for aircraft imminent. Fred J. McCall <fjmccall@gmail.com> - 2016-11-13 19:13 -0700
        Re: Ion drive for aircraft imminent. noTthaTguY <abu.kuanysh05@gmail.com> - 2016-11-04 11:52 -0700
  Re: Ion drive for aircraft imminent. "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-11-01 10:16 -0700
    Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-01 18:16 +0000
    Re: Ion drive for aircraft imminent. benj <benj@nobody.net> - 2016-11-01 18:44 -0400
    Re: Ion drive for aircraft imminent. Yuri Kreaton <invlaid@invalid.com> - 2016-11-02 22:31 -0500
      Re: Ion drive for aircraft imminent. Yuri Kreaton <invlaid@invalid.com> - 2016-11-03 07:27 -0500
      Re: Ion drive for aircraft imminent. Wally W. <ww84wa@aim.com> - 2016-11-03 09:26 -0400
        Re: Ion drive for aircraft imminent. Yuri Kreaton <invlaid@invalid.com> - 2016-11-03 12:04 -0500
      Re: Ion drive for aircraft imminent. Mahipal <mahipal7638@gmail.com> - 2016-11-03 18:03 -0700
    Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-04 15:28 -0400
      Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-04 21:03 +0000
  Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-01 18:19 +0000
    Re: Ion drive for aircraft imminent. John Larkin <jjlarkin@highlandtechnology.com> - 2016-11-01 14:13 -0700
      Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-02 00:00 +0000
        Re: Ion drive for aircraft imminent. krw <krw@nowhere.com> - 2016-11-01 22:05 -0400
          Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-02 02:54 +0000
            Re: Ion drive for aircraft imminent. krw <krw@nowhere.com> - 2016-11-02 20:20 -0400
              Re: Ion drive for aircraft imminent. Sjouke Burry <burrynulnulfour@ppllaanneett.nnll> - 2016-11-03 02:24 +0100
              Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-03 02:02 +0000
              Re: Ion drive for aircraft imminent. "Sea Wasp (Ryk E. Spoor)" <seawasp@sgeinc.invalid.com> - 2016-11-03 07:41 -0400
      Re: Ion drive for aircraft imminent. Yuri Kreaton <invlaid@invalid.com> - 2016-11-01 19:10 -0500
        Re: Ion drive for aircraft imminent. krw <krw@nowhere.com> - 2016-11-01 22:06 -0400
        Re: Ion drive for aircraft imminent. Jeff Liebermann <jeffl@cruzio.com> - 2016-11-01 19:12 -0700
        Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-02 02:57 +0000
  Re: Ion drive for aircraft imminent. Gutless Umbrella Carrying Sissy <taustinca@gmail.com> - 2016-11-01 14:24 -0700
    Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-03 10:35 -0400
      Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-03 17:39 +0000
        Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-06 13:12 -0500
          Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-06 19:54 +0000
      Re: Ion drive for aircraft imminent. Gutless Umbrella Carrying Sissy <taustinca@gmail.com> - 2016-11-03 11:37 -0700
  Re: Ion drive for aircraft imminent. Yuri Kreaton <invlaid@invalid.com> - 2016-11-01 19:08 -0500
  Re: Ion drive for aircraft imminent. Robert Baer <robertbaer@localnet.com> - 2016-11-02 00:33 -0800
    Re: Ion drive for aircraft imminent. mike <ham789@netzero.net> - 2016-11-03 01:05 -0700
      Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-03 17:43 +0000
    Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-04 15:38 -0400
  Re: Ion drive for aircraft imminent. Bill Martin <wwm@wwmartin.net> - 2016-11-02 11:47 -0700
  Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-03 09:28 -0400
  Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-03 09:48 -0400
    Re: Ion drive for aircraft imminent. John Larkin <jjlarkin@highlandtechnology.com> - 2016-11-03 08:41 -0700
      Re: Ion drive for aircraft imminent. Yuri Kreaton <invlaid@invalid.com> - 2016-11-03 12:22 -0500
        Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-04 16:09 -0400
          Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-04 21:09 +0000
      Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-07 07:29 -0500
        Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-07 18:37 +0000
          Re: Ion drive for aircraft imminent. Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2016-11-07 15:31 -0500
            Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-07 21:46 +0000
              Re: Ion drive for aircraft imminent. mike <ham789@netzero.net> - 2016-11-07 18:18 -0800
                Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-08 03:39 +0000
                Re: Ion drive for aircraft imminent. mike <ham789@netzero.net> - 2016-11-07 20:51 -0800
                Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-08 07:13 +0000
                Re: Ion drive for aircraft imminent. krw <krw@nowhere.com> - 2016-11-08 12:28 -0500
                Re: Ion drive for aircraft imminent. mike <ham789@netzero.net> - 2016-11-08 13:33 -0800
                Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-08 22:05 +0000
                Re: Ion drive for aircraft imminent. krw <krw@somewhere.com> - 2016-11-08 18:45 -0500
                Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-09 00:13 +0000
                Re: Ion drive for aircraft imminent. krw <krw@somewhere.com> - 2016-11-08 19:46 -0500
                Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-09 01:05 +0000
                Re: Ion drive for aircraft imminent. Rick Jones <rick.jones2@hpe.com> - 2016-11-09 18:26 +0000
                Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-09 20:03 +0000
                Re: Ion drive for aircraft imminent. Fred J. McCall <fjmccall@gmail.com> - 2016-11-13 19:21 -0700
                Re: Ion drive for aircraft imminent. Tom Gardner <spamjunk@blueyonder.co.uk> - 2016-11-14 08:40 +0000
                Re: Ion drive for aircraft imminent. Fred J. McCall <fjmccall@gmail.com> - 2016-11-14 02:55 -0700
                Re: Ion drive for aircraft imminent. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2016-11-14 06:02 -0500
                Re: Ion drive for aircraft imminent. Tom Gardner <spamjunk@blueyonder.co.uk> - 2016-11-14 11:31 +0000
                Re: Ion drive for aircraft imminent. Fred J. McCall <fjmccall@gmail.com> - 2016-11-14 05:54 -0700
                Re: Ion drive for aircraft imminent. Tom Gardner <spamjunk@blueyonder.co.uk> - 2016-11-14 13:47 +0000
                Re: Ion drive for aircraft imminent. Fred J. McCall <fjmccall@gmail.com> - 2016-11-14 12:35 -0700
                Re: Ion drive for aircraft imminent. Tom Gardner <spamjunk@blueyonder.co.uk> - 2016-11-15 00:04 +0000
                Re: Ion drive for aircraft imminent. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2016-11-14 13:37 -0500
                Re: Ion drive for aircraft imminent. Tom Gardner <spamjunk@blueyonder.co.uk> - 2016-11-14 18:52 +0000
                Re: Ion drive for aircraft imminent. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2016-11-14 14:56 -0500
                Re: Ion drive for aircraft imminent. Gutless Umbrella Carrying Sissy <taustinca@gmail.com> - 2016-11-14 13:17 -0700
                Re: Ion drive for aircraft imminent. Yuri Kreaton <invlaid@invalid.com> - 2016-11-14 12:53 -0600
                Re: Ion drive for aircraft imminent. Tom Gardner <spamjunk@blueyonder.co.uk> - 2016-11-14 19:19 +0000
                Re: Ion drive for aircraft imminent. Tom Gardner <spamjunk@blueyonder.co.uk> - 2016-11-14 18:57 +0000
                Re: Ion drive for aircraft imminent. Tom Gardner <spamjunk@blueyonder.co.uk> - 2016-11-14 11:27 +0000
                Re: Ion drive for aircraft imminent. Fred J. McCall <fjmccall@gmail.com> - 2016-11-14 05:52 -0700
                Re: Ion drive for aircraft imminent. Tom Gardner <spamjunk@blueyonder.co.uk> - 2016-11-14 13:56 +0000
                Re: Ion drive for aircraft imminent. Fred J. McCall <fjmccall@gmail.com> - 2016-11-14 12:47 -0700
                Re: Ion drive for aircraft imminent. Tom Gardner <spamjunk@blueyonder.co.uk> - 2016-11-14 23:58 +0000
                Re: Ion drive for aircraft imminent. Fred J. McCall <fjmccall@gmail.com> - 2016-11-14 22:07 -0700
                Re: Ion drive for aircraft imminent. Alain Fournier <alain245@videotron.ca> - 2016-11-15 20:34 -0500
                Re: Ion drive for aircraft imminent. Fred J. McCall <fjmccall@gmail.com> - 2016-11-15 21:42 -0700
                Re: Ion drive for aircraft imminent. Tom Gardner <spamjunk@blueyonder.co.uk> - 2016-11-16 09:05 +0000
                Re: Ion drive for aircraft imminent. Fred J. McCall <fjmccall@gmail.com> - 2016-11-16 02:13 -0700
                Re: Ion drive for aircraft imminent. krw <krw@somewhere.com> - 2016-11-16 20:32 -0500
                Re: Ion drive for aircraft imminent. noTthaTguY <abu.kuanysh05@gmail.com> - 2016-11-13 16:37 -0800
    Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-03 17:49 +0000
  Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-03 10:00 -0400
    Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-03 17:51 +0000
    Re: Ion drive for aircraft imminent. Yuri Kreaton <invlaid@invalid.com> - 2016-11-06 16:37 -0600
      Re: Ion drive for aircraft imminent. Sjouke Burry <burrynulnulfour@ppllaanneett.nnll> - 2016-11-07 02:28 +0100
      Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-08 11:03 -0500
        Re: Ion drive for aircraft imminent. Yuri Kreaton <invlaid@invalid.com> - 2016-11-08 11:17 -0600
          Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-08 17:53 +0000
          Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-13 12:09 -0500
            Re: Ion drive for aircraft imminent. Yuri Kreaton <invlaid@invalid.com> - 2016-11-13 12:04 -0600
              Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-13 20:34 -0500
                Re: Ion drive for aircraft imminent. Yuri Kreaton <invlaid@invalid.com> - 2016-11-13 20:12 -0600
        Re: Ion drive for aircraft imminent. jimp@specsol.spam.sux.com - 2016-11-08 17:37 +0000
          Re: Ion drive for aircraft imminent. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2016-11-13 10:53 -0500
            Re: Ion drive for aircraft imminent. Yuri Kreaton <invlaid@invalid.com> - 2016-11-13 12:09 -0600

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