Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dk01.r1000.mx.aol.com (Internet Inbound) with ESMTP id 4ECC038000212; Thu, 22 Sep 2011 16:38:46 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1R6pxi-0002tN-4n for rs_out_1@blacksheep.org; Thu, 22 Sep 2011 21:33:38 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1R6pxh-0002tE-K8 for rsgb_lf_group@blacksheep.org; Thu, 22 Sep 2011 21:33:37 +0100 Received: from smtp6.freeserve.com ([193.252.22.191]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1R6pxf-00084u-3Q for rsgb_lf_group@blacksheep.org; Thu, 22 Sep 2011 21:33:37 +0100 Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3618.me.freeserve.com (SMTP Server) with ESMTP id 345CB7000090 for ; Thu, 22 Sep 2011 22:33:29 +0200 (CEST) Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3618.me.freeserve.com (SMTP Server) with ESMTP id 24AE27000094 for ; Thu, 22 Sep 2011 22:33:29 +0200 (CEST) Received: from AGB (unknown [2.26.28.155]) by mwinf3618.me.freeserve.com (SMTP Server) with SMTP id E71637000090 for ; Thu, 22 Sep 2011 22:33:28 +0200 (CEST) X-ME-UUID: 20110922203328946.E71637000090@mwinf3618.me.freeserve.com Message-ID: From: "Graham" To: References: <000a01cc7942$09fbef90$0401a8c0@xphd97xgq27nyf><433A1E6B2B1A4FA895223B81346E0F1C@HughLaptop> In-Reply-To: Date: Thu, 22 Sep 2011 21:33:28 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 X-Antivirus: avast! (VPS 110922-1, 22/09/2011), Outbound message X-Antivirus-Status: Clean X-Spam-Score: 0.2 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,RCVD_ILLEGAL_IP=0.234 Subject: Re: LF: Re: Turbine magnets Content-Type: multipart/alternative; boundary="----=_NextPart_000_0206_01CC796F.448417A0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=HTML_30_40,HTML_MESSAGE, MISSING_OUTLOOK_NAME autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:481344928:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1db4054e7b9cd5034a X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_0206_01CC796F.448417A0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I think there are some problems with walking in Scotland using = magnetic compasses , due to the rocks ??=20 From: Andy Talbot=20 Sent: Thursday, September 22, 2011 9:15 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: Re: Turbine magnets Surely if the magnetic field leaked that much, the generators would = suffer efficiency. =20 They are designed as closed magnetic circuits, with all the field lines = closely confined in iron, with small air gaps Andy 'jnt =20 On 22 September 2011 21:07, Hugh M0WYE wrote: Seems unlikely that the magnetism would reach that far to me - the = magnetic field would be no different to any other large generating set - = they are just an ordinary alternator driven through a gearbox. If they did affect magnetic compasses you would have thought that the = place you would really notice it would be around the coast, with small = boats sailing in amongst them. Although they look as if they are turning slowly, they can't do many = rpm before the tips of the blades go supersonic, as the blades are many = 10s of metres long. Over what distance did you notice the magnetic effect? perhaps I could = get down to the ones on Romney Marsh, here in Kent and see if they have = any effect on a compass needle. The moving blades can affect radio reception for people living nearby, = although I've not noticed this myself. 73 Hugh M0WYE ----- Original Message -----=20 From: mal hamilton=20 To: rsgb=20 Sent: Thursday, September 22, 2011 5:09 PM Subject: LF: Turbine magnets Great for LF!!!!!!!!!!!!! Experience Driving to Gleneagles in Scotland last weekend my car magnetic = compass was reading backwards and erratic and I wondered why. The hills es mountain tops are covered with WIND TURBINES, hugh = beasts and only turning slowly, cannot be producing much electric. however thinking about it I have concluded that the strong MAGNETS = in the turbines must effect a magnetic compass, possible aeroplanes as = well except they are flying very high, might also have an influence on = GPS frequencies and navigation in these areas I must say these hugh Monsters strewn all across the Scottish = mountain tops and countryside spoils the scenery. de Mal/G3KEV ------=_NextPart_000_0206_01CC796F.448417A0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
I think  there  are  = some=20 problems  with  walking  in Scotland  = using  =20 magnetic  compasses  , due to the  rocks ??

Sent: Thursday, September 22, 2011 9:15 PM
Subject: Re: LF: Re: Turbine magnets

Surely if the magnetic field leaked that much, the generators would = suffer=20 efficiency.  
They are designed as closed magnetic circuits, with all the field = lines=20 closely confined in iron, with small air gaps
 
Andy
'jnt


 
On 22 September 2011 21:07, Hugh M0WYE <m0wye@radiouk.com>=20 wrote:
Seems unlikely that the magnetism = would reach=20 that far to me - the magnetic field would be no different to any other = large=20 generating set - they are just an ordinary alternator driven through a = gearbox.
If they did affect magnetic compasses = you would=20 have thought that the place you would really notice it would be around = the=20 coast, with small boats sailing in amongst them.
Although they look as if they are = turning slowly,=20 they can't do many rpm before the tips of the blades go supersonic, as = the=20 blades are many 10s of metres long.
Over what distance did you notice the = magnetic effect? perhaps I could get down to the ones on Romney = Marsh,=20 here in Kent and see if they have any effect on a compass=20 needle.
 
The moving blades can affect radio = reception for=20 people living nearby, although I've not noticed this = myself.
 
73
Hugh M0WYE
----- Original Message -----
To: rsgb
Sent: Thursday, September 22, = 2011 5:09=20 PM
Subject: LF: Turbine = magnets

Great for LF!!!!!!!!!!!!!
 
Experience
 
Driving to Gleneagles in Scotland last = weekend my car=20 magnetic compass was reading backwards and erratic and I wondered=20 why.
The hills es mountain tops are covered with = WIND=20 TURBINES,  hugh beasts and only turning slowly, cannot be = producing=20 much electric.
however thinking about it I have concluded = that the=20 strong MAGNETS in the turbines must effect a magnetic = compass,  possible aeroplanes as well except they are flying=20 very high, might also have an influence on GPS frequencies = and=20 navigation in these areas
I must say these hugh Monsters strewn all = across the=20 Scottish mountain tops and countryside spoils the = scenery.
 de Mal/G3KEV
 

=
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