Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.physics.electromag > #20065

Re: Question about power capacity of electrical motors.

From jimp@specsol.spam.sux.com
Newsgroups sci.physics.electromag, sci.electronics.design, sci.physics
Subject Re: Question about power capacity of electrical motors.
Date 2017-07-22 00:22 +0000
Organization A noiseless patient Spider
Message-ID <qeia4e-luq.ln1@mail.specsol.com> (permalink)
References (10 earlier) <oktj5s$b76$1@dont-email.me> <9b1a4e-a8p.ln1@mail.specsol.com> <oktrk1$76v$1@dont-email.me> <0paa4e-95q.ln1@mail.specsol.com> <oku12h$paj$2@dont-email.me>

Cross-posted to 3 groups.

Show all headers | View raw

In sci.physics.electromag rickman <gnuarm@gmail.com> wrote:
> jimp@specsol.spam.sux.com wrote on 7/21/2017 6:11 PM:
>> In sci.physics.electromag rickman <gnuarm@gmail.com> wrote:
>>> jimp@specsol.spam.sux.com wrote on 7/21/2017 3:30 PM:
>>>> In sci.physics.electromag rickman <gnuarm@gmail.com> wrote:
>>>>> jimp@specsol.spam.sux.com wrote on 7/21/2017 2:05 PM:
>>>>>> In sci.physics.electromag rickman <gnuarm@gmail.com> wrote:
>>>>>>> jimp@specsol.spam.sux.com wrote on 7/21/2017 1:07 PM:
>>>>>>>> In sci.physics.electromag rickman <gnuarm@gmail.com> wrote:
>>>>>>>>> jimp@specsol.spam.sux.com wrote on 7/21/2017 11:24 AM:
>>>>>>>>>> In sci.physics.electromag rickman <gnuarm@gmail.com> wrote:
>>>>>>>>>>> jimp@specsol.spam.sux.com wrote on 7/15/2017 3:19 PM:
>>>>>>>>>>>> In sci.physics.electromag Piglet <erichpwagner@hotmail.com> wrote:
>>>>>>>>>>>>> On 15/07/2017 19:31, jimp@specsol.spam.sux.com wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> The problem with electric airplanes is the lack of a power source that is
>>>>>>>>>>>>>> comparable to gasoline or jet fuel not the weight of electric motors.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> Solar cells work so long as you stay above the cloud and keep to the lit
>>>>>>>>>>>>> hemisphere!
>>>>>>>>>>>>>
>>>>>>>>>>>>> piglet
>>>>>>>>>>>>
>>>>>>>>>>>> Only for powered sailplanes otherwise the area available to collect energy
>>>>>>>>>>>> is too small to meet power requirements.
>>>>>>>>>>>
>>>>>>>>>>> So you are saying the only aircraft that can be powered by solar cells are
>>>>>>>>>>> the ones that can be powered by solar cells?
>>>>>>>>>>>
>>>>>>>>>>> What point are you trying to make?
>>>>>>>>>>
>>>>>>>>>> If you would read the post for understanding, you would know that I am
>>>>>>>>>> saying only sailplanes have enough surface area to collect enough energy
>>>>>>>>>> to keep themselves in the air.
>>>>>>>>>>
>>>>>>>>>> For the vast majority of airplanes the available surface area is too small
>>>>>>>>>> to provide the energy the airplace requires to remain airborne.
>>>>>>>>>>
>>>>>>>>>> You do know that the amount of solar energy available is limited by the
>>>>>>>>>> solar irradiance, which is apporximately 1 kM/m^2 at noon on a clear
>>>>>>>>>> day, don't you?
>>>>>>>>>
>>>>>>>>> I know that a sailplane is a glider which the solar powered planes are *not*.
>>>>>>>>
>>>>>>>> There are powered sailplanes, also known as motor gliders.
>>>>>>>>
>>>>>>>> https://en.wikipedia.org/wiki/Motor_glider
>>>>>>>>
>>>>>>>>> I know that you haven't made a point about the solar powered plane.  It is
>>>>>>>>> constructed like a glider, so what?  Have you seen pictures of the Wright
>>>>>>>>> brothers plane?
>>>>>>>>
>>>>>>>> You still don't get it do you, or are you being dense on purpose just to argue?
>>>>>>>
>>>>>>> Just waiting for you to actually *say* something.
>>>>>>
>>>>>> Yeah, right.
>>>>>>
>>>>>>>> There is some minimum amount of power required to keep an airplane flying.
>>>>>>>>
>>>>>>>> Powered sailplanes require very little power to keep flying and have wings
>>>>>>>> with a very large surface area, therefore it is practical to have a solar
>>>>>>>> powered sailplane.
>>>>>>>>
>>>>>>>> A common airplane such as a Cessna 172 does not have enough wing area to
>>>>>>>> collect enough energy to fly, therefore it is not practical to have a
>>>>>>>> solar powered Cessna 172.
>>>>>>>
>>>>>>> So???  I'm still waiting for you to say something significant about this.
>>>>>>> It's also not practical to launch a Cessna 172 to the moon.  SO WHAT?
>>>>>>
>>>>>> So solar powered airplanes other than motor gliders are not practical.
>>>>>>
>>>>>> Attempts to drag in red herrings about the Wright Brothers and the Moon
>>>>>> noted.
>>>>>>
>>>>>>> Solar powered planes exist and have flown around the world.  Unlike gas
>>>>>>> powered or jet engines they can stay up for days as they don't need to be
>>>>>>> refueled after six hours or so.  They fly well above the weather and collect
>>>>>>> sun all day and continue to fly at night using batteries and altitude
>>>>>>> accumulated during the day.
>>>>>>
>>>>>> All of those are motor gliders, thus proving my point.
>>>>>
>>>>> I've never disputed these planes are like gliders.  I'm asking why this is
>>>>> significant???
>>>>
>>>> As has been said many times now, because gliders require very little power
>>>> to remain airborne.
>>>>
>>>> And that is very little in both relative and absolute terms.
>>>
>>> I still don't see the relevance.  Why should anyone care about this fact?
>>
>> Because someone with at least a small amount of sense is capable of
>> understanding that airplanes, other than sailplanes, do not have enough
>> surface area to be able to capture enough solar energy to supply their
>> energy rquirements to remain airborne.
> 
> You keep saying the same simple fact over and over.  I have no idea why you 
> feel this is so important.  I'm done asking you to explain.

And I am done trying to explain it to you as either you are the dumbest
nob on the planet or a troll pretending not to understand something
so simple.

-- 
Jim Pennino

Back to sci.physics.electromag | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Question about power capacity of electrical motors. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-15 13:43 -0400
  Re: Question about power capacity of electrical motors. Cursitor Doom <curd@notformail.com> - 2017-07-15 18:39 +0000
  Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-15 18:31 +0000
    Re: Question about power capacity of electrical motors. Piglet <erichpwagner@hotmail.com> - 2017-07-15 20:09 +0100
      Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-15 19:19 +0000
        Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 05:44 -0400
          Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 15:24 +0000
            Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 12:17 -0400
              Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 17:07 +0000
                Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 13:42 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 18:05 +0000
                Re: Question about power capacity of electrical motors. John S <Sophi.2@invalid.org> - 2017-07-21 13:46 -0500
                Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 15:07 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 19:30 +0000
                Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 17:31 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 22:11 +0000
                Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 19:04 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-22 00:22 +0000
    Re: Question about power capacity of electrical motors. krw@notreal.com - 2017-07-15 18:46 -0400
      Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-16 02:00 +0000
        Re: Question about power capacity of electrical motors. krw@notreal.com - 2017-07-15 22:38 -0400
          Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-16 03:07 +0000
            Re: Question about power capacity of electrical motors. Jos Bergervoet <jos.bergervoet@xs4all.nl> - 2017-07-16 09:20 +0200
    Re: Question about power capacity of electrical motors. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-15 21:46 -0400
      Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-16 02:13 +0000
        Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 05:49 -0400
          Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 15:26 +0000
            Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 12:45 -0400
              Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-21 12:08 -0500
              Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 17:10 +0000
                Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 13:43 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 18:07 +0000
                Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 15:10 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 19:32 +0000
                Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 17:32 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 22:11 +0000
              Re: Question about power capacity of electrical motors. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-22 10:51 -0400
                Re: Question about power capacity of electrical motors. Lofty Goat <rlwatkins@gmail.com> - 2017-07-22 17:55 -0500
                Re: Question about power capacity of electrical motors. Lofty Goat <rlwatkins@gmail.com> - 2017-07-22 17:58 -0500
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-22 18:56 -0500
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-22 21:25 -0400
                Re: Question about power capacity of electrical motors. Lofty Goat <rlwatkins@gmail.com> - 2017-07-23 20:01 -0500
                Re: Question about power capacity of electrical motors. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-24 05:35 -0400
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-24 08:39 -0500
                Re: Question about power capacity of electrical motors. Lofty Goat <rlwatkins@gmail.com> - 2017-07-24 20:15 -0500
                Re: Question about power capacity of electrical motors. Jos Bergervoet <jos.bergervoet@xs4all.nl> - 2017-07-25 11:56 +0200
                Re: Question about power capacity of electrical motors. Lofty Goat <rlwatkins@gmail.com> - 2017-07-25 20:23 -0500
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-26 20:28 -0500
                Re: Question about power capacity of electrical motors. Lofty Goat <rlwatkins@gmail.com> - 2017-07-29 18:47 -0500
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-29 21:18 -0400
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-29 23:59 -0500
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-31 17:05 -0400
                Re: Question about power capacity of electrical motors. Lofty Goat <rlwatkins@gmail.com> - 2017-07-24 20:13 -0500
    Re: Question about power capacity of electrical motors. David Lesher <wb8foz@panix.com> - 2017-07-17 22:29 +0000
    Re: Question about power capacity of electrical motors. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-21 04:18 -0400
      Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 15:29 +0000
  Re: Question about power capacity of electrical motors. John Larkin <jjlarkin@highlandtechnology.com> - 2017-07-15 12:51 -0700
    Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-15 23:47 -0500
      Re: Question about power capacity of electrical motors. benj <nobody@gmail.com> - 2017-07-16 00:58 -0400
        Re: Question about power capacity of electrical motors. Jos Bergervoet <jos.bergervoet@xs4all.nl> - 2017-07-16 09:22 +0200
          Re: Question about power capacity of electrical motors. benj <nobody@gmail.com> - 2017-07-17 01:13 -0400
            Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-17 08:46 -0500
      Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 06:26 -0400
        Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 15:32 +0000
          Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-21 11:09 -0500
            Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-21 21:44 -0400
              Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-21 22:17 -0500
                Re: Question about power capacity of electrical motors. benj <nobody@yahoo.com> - 2017-07-22 02:16 -0400
                Re: Question about power capacity of electrical motors. Jos Bergervoet <jos.bergervoet@xs4all.nl> - 2017-07-23 10:33 +0200
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-23 16:34 -0500
                Re: Question about power capacity of electrical motors. Jos Bergervoet <jos.bergervoet@xs4all.nl> - 2017-07-24 12:10 +0200
                Re: Question about power capacity of electrical motors. John S <Sophi.2@invalid.org> - 2017-07-24 05:19 -0500
                Re: Question about power capacity of electrical motors. Jos Bergervoet <jos.bergervoet@xs4all.nl> - 2017-07-24 12:32 +0200
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-24 08:52 -0500
                Re: Question about power capacity of electrical motors. Jos Bergervoet <jos.bergervoet@xs4all.nl> - 2017-07-24 16:56 +0200
                Re: Question about power capacity of electrical motors. Serg io <invaalid@invalid.com> - 2017-07-24 12:02 -0500
                Re: Question about power capacity of electrical motors. Jos Bergervoet <jos.bergervoet@xs4all.nl> - 2017-07-24 23:51 +0200
                Re: Question about power capacity of electrical motors. John S <Sophi.2@invalid.org> - 2017-07-24 17:16 -0500
                Re: Question about power capacity of electrical motors. Jos Bergervoet <jos.bergervoet@xs4all.nl> - 2017-07-25 01:12 +0200
                Re: Question about power capacity of electrical motors. John S <Sophi.2@invalid.org> - 2017-07-24 18:25 -0500
                Re: Question about power capacity of electrical motors. Jos Bergervoet <jos.bergervoet@xs4all.nl> - 2017-07-25 11:54 +0200
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-24 17:19 -0400
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-24 17:10 -0400
                Re: Question about power capacity of electrical motors. Jos Bergervoet <jos.bergervoet@xs4all.nl> - 2017-07-24 23:33 +0200
                Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-24 21:02 -0400
          Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 13:12 -0400
            Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 17:25 +0000
              Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 13:45 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-21 18:08 +0000
              Re: Question about power capacity of electrical motors. benj <benj@nobody.net> - 2017-07-21 18:53 -0400
                Re: Question about power capacity of electrical motors. jimp@specsol.spam.sux.com - 2017-07-22 00:23 +0000
    Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 06:00 -0400
      Re: Question about power capacity of electrical motors. Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2017-07-21 09:48 -0400
        Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 13:30 -0400
      Re: Question about power capacity of electrical motors. Jos Bergervoet <jos.bergervoet@xs4all.nl> - 2017-07-21 17:30 +0200
        Re: Question about power capacity of electrical motors. rickman <gnuarm@gmail.com> - 2017-07-21 13:34 -0400
          Re: Question about power capacity of electrical motors. John S <Sophi.2@invalid.org> - 2017-07-21 13:08 -0500
  Re: Question about power capacity of electrical motors. "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-07-15 19:51 -0500
    Re: Question about power capacity of electrical motors. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-21 06:05 -0400
      Re: Question about power capacity of electrical motors. "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-07-21 19:36 -0500
        Re: Question about power capacity of electrical motors. Jos Bergervoet <jos.bergervoet@xs4all.nl> - 2017-07-22 10:39 +0200
          Re: Question about power capacity of electrical motors. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-22 12:47 -0400
            Re: Question about power capacity of electrical motors. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-26 18:18 -0400
              Re: Question about power capacity of electrical motors. "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-07-26 18:27 -0500
        Re: Question about power capacity of electrical motors. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-22 11:40 -0400
          Re: Question about power capacity of electrical motors. "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-07-23 14:32 -0500

csiph-web