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Shark Fin Antenna

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moe-rosspistons(at)hotmai
Guest

Posted: Thu Feb 26, 2009 6:34 am Post subject: Shark Fin Antenna

Fellow Commander  Drivers:

  

 Typically which radio is connected to the  "Shark Fin Antenna"  I seem to be having a senior moment and can't  remember.

  

 Thanx!

  

 Moe Mills

 N680RR

 Proud Holder of The Golden Pedal  Award

  



  From: Russell Legg (rlegg(at)austarnet.com.au) 

 Sent: Thursday, February 26, 2009 4:42 AM

 To: commander-list(at)matronics.com (commander-list(at)matronics.com)  

 Subject: Re: Flying with doors  removed.

 



Hi Bill,



Last week I managed to track down the  research for the arrangements that the Department of Civil Aviation put in  place, here in Australia back in 1962. At the time they were operating 2 560Es  and 2 680Es.



They conducted significant air testing of a 560E with both  the baggage door removed and the emergency exit window removed. Their aim was to  enable operations in a Search & Rescue environment.



Their conclusion  was simple: Baggage door-off or window removed or both were permitted  provided a 10% reduction in AUW was achieved for take-off, and across the  operational envelope.



Hope this helps...



Cheers from  Oz



Russell



On 20/2/09 5:48 PM, "BillLeff1(at)aol.com"  <BillLeff1(at)aol.com> wrote:



  	  Quote: 	
		  Bert, that    information would be very helpful if you can send it. I am also wanting to fly    with the baggage door removed.

 

Thanks

 

Bill    Leff



      A Good Credit Score is 1201267884/aol?redir=[url=http:%2F%2Fwww.freecreditreport.com%2Fpm%2Fdefault.aspx%3Fsc%3D668072%26hmpgID%3D62%26bcd%3DfebemailfooterNO62]http:%2F%2Fwww.freecreditreport.com%2Fpm%2Fdefault.aspx%3Fsc%3D668072%26hmpgID%3D62%26bcd%3DfebemailfooterNO62[/url]">    See yours in just 2 easy steps!





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BobsV35B(at)aol.com
Guest

Posted: Thu Feb 26, 2009 6:46 am Post subject: Shark Fin Antenna

Good Morning Moe,

  

 Most often a shark fin is a high speed communication antenna. They create  relatively low drag and handle ice very well.  

  

 The dual "shark fins" that are occasionally installed as a pair and  oriented horizontally are generally called Blade Antennas. They are used to  receive VHF Navigation and glideslope signals

  

 Happy  Skies



Old Bob

AKA

Bob Siegfried

Ancient Aviator

628 West 86th  Street

Downers Grove, IL 60516

630 985-8502 

Stearman  N3977A

Brookeridge Air Park LL22   

  In a message dated 2/26/2009 8:35:01 A.M. Central Standard Time,  moe-rosspistons(at)hotmail.com writes:

  	  Quote: 	
		     Fellow Commander    Drivers:

    

   Typically which radio is connected to    the "Shark Fin Antenna"  I seem to be having a senior moment and can't    remember.

    

   Thanx!

    

   Moe Mills

   N680RR

   Proud Holder of The Golden Pedal    Award

      



      From: Russell Legg (rlegg(at)austarnet.com.au) 

   Sent: Thursday, February 26, 2009 4:42 AM

   To: commander-list(at)matronics.com (commander-list(at)matronics.com)    

   Subject: Re: Flying with doors    removed.

   



Hi Bill,



Last week I managed to track down the    research for the arrangements that the Department of Civil Aviation put in    place, here in Australia back in 1962. At the time they were operating 2 560Es    and 2 680Es.



They conducted significant air testing of a 560E with both    the baggage door removed and the emergency exit window removed. Their aim was    to enable operations in a Search & Rescue environment.



Their    conclusion was simple: Baggage door-off or window removed or both were    permitted provided a 10% reduction in AUW was achieved for take-off, and    across the operational envelope.



Hope this    helps...



Cheers from Oz



Russell



On 20/2/09 5:48    PM, "BillLeff1(at)aol.com" <BillLeff1(at)aol.com> wrote:



    	  Quote: 	
		  Bert, that      information would be very helpful if you can send it. I am also wanting to      fly with the baggage door removed.

 

Thanks

 

Bill      Leff



          A Good Credit Score is 1201267884/aol?redir=[url=http:%2F%2Fwww.freecreditreport.com%2Fpm%2Fdefault.aspx%3Fsc%3D668072%26hmpgID%3D62%26bcd%3DfebemailfooterNO62]http:%2F%2Fwww.freecreditreport.com%2Fpm%2Fdefault.aspx%3Fsc%3D668072%26hmpgID%3D62%26bcd%3DfebemailfooterNO62[/url]">      See yours in just 2 easy steps!





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r-List">http://www.matronics.com/Navigator?Commander-List

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BertBerry1(at)aol.com
Guest

Posted: Thu Feb 26, 2009 9:47 am Post subject: Shark Fin Antenna

Does anyone have a photo of a commander with the role up door installed?Bert

Sent via BlackBerry by AT&T

From:  BobsV35B(at)aol.com

Date: Thu, 26 Feb 2009 09:45:43 EST

To: <commander-list(at)matronics.com>

Subject: Re: Commander-List: Shark Fin Antenna

Good Morning Moe,

Most often a shark fin is a high speed communication antenna. They create  relatively low drag and handle ice very well.  

The dual "shark fins" that are occasionally installed as a pair and  oriented horizontally are generally called Blade Antennas. They are used to  receive VHF Navigation and glideslope signals

Happy  Skies

Old Bob

AKA

Bob Siegfried

Ancient Aviator

628 West 86th  Street

Downers Grove, IL 60516

630 985-8502 

Stearman  N3977A

Brookeridge Air Park LL22  

In a message dated 2/26/2009 8:35:01 A.M. Central Standard Time,  moe-rosspistons(at)hotmail.com writes:

 	  Quote: 	
		     Fellow Commander    Drivers:

   Typically which radio is connected to    the "Shark Fin Antenna"  I seem to be having a senior moment and can't    remember.

   Thanx!

   Moe Mills

   N680RR

   Proud Holder of The Golden Pedal    Award

      From: Russell Legg (rlegg(at)austarnet.com.au) 

   Sent: Thursday, February 26, 2009 4:42 AM

   To: commander-list(at)matronics.com (commander-list(at)matronics.com)    

   Subject: Re: Commander-List: Flying with doors    removed.

Hi Bill,

Last week I managed to track down the    research for the arrangements that the Department of Civil Aviation put in    place, here in Australia back in 1962. At the time they were operating 2 560Es    and 2 680Es.

They conducted significant air testing of a 560E with both    the baggage door removed and the emergency exit window removed. Their aim was    to enable operations in a Search & Rescue environment.

Their    conclusion was simple: Baggage door-off or window removed or both were    permitted provided a 10% reduction in AUW was achieved for take-off, and    across the operational envelope.

Hope this    helps...

Cheers from Oz

Russell

On 20/2/09 5:48    PM, "BillLeff1(at)aol.com" <BillLeff1(at)aol.com> wrote:

    	  Quote: 	
		  Bert, that      information would be very helpful if you can send it. I am also wanting to      fly with the baggage door removed.

Thanks

Bill      Leff

          A Good Credit Score is 1201267884/aol?redir=[url=http:%2F%2Fwww.freecreditreport.com%2Fpm%2Fdefault.aspx%3Fsc%3D668072%26hmpgID%3D62%26bcd%3DfebemailfooterNO62]http:%2F%2Fwww.freecreditreport.com%2Fpm%2Fdefault.aspx%3Fsc%3D668072%26hmpgID%3D62%26bcd%3DfebemailfooterNO62[/url]">      See yours in just 2 easy steps!

ist Email Forum      -

r-List">http://www.matronics.com/Navigator?Commander-List

;  -      MATRONICS WEB FORUMS -

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;- List Contribution Web Site      -

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 	  Quote: 	
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steve2(at)sover.net
Guest

Posted: Sat Feb 28, 2009 5:31 am Post subject: Shark Fin Antenna

Pretty sure both our transponders are now using the short fins.

  

 One of them is a Garmin unit receiving data.......

  

 Steve

 [quote]   ---

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BobsV35B(at)aol.com
Guest

Posted: Sat Feb 28, 2009 6:20 am Post subject: Shark Fin Antenna

Good Morning Steve,

  

 You are probably correct!

  

 I had forgotten about those itty bitty "shark fin" antennas. 

  

 They are generally mounted on the belly and are used to receive data for  the transponder or DME. Some anti collision units use an additional one mounted  on the top of the fuselage.  

  

 They handle the same job as do those short (two to three inches long) wire  antennas that are so easy to break off when washing the airplane.

  

 Happy  Skies



Old Bob

AKA

Bob Siegfried

Ancient Aviator

628 West 86th  Street

Downers Grove, IL 60516

630 985-8502 

Stearman  N3977A

Brookeridge Air Park LL22   

  In a message dated 2/28/2009 7:32:36 A.M. Central Standard Time,  steve2(at)sover.net writes:

  	  Quote: 	
		     Pretty sure both our transponders are now using the short fins.

    

   One of them is a Garmin unit receiving data.......

    

   Steve

	




 A Good Credit Score is 700 or Above.  See yours in just 2 easy steps!

- The Matronics Commander-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Commander-List

steve2(at)sover.net
Guest

Posted: Sat Feb 28, 2009 5:12 pm Post subject: Shark Fin Antenna

Hi Old Bob..... Right now we've got a Mode-S transponder running with TIS-B  traffic snooping. Its completely dependent on a data uplink from the ground.....  And if I've got it right, it's using one of the little fins to recieve that  data.

  

 ADS-B I'm a guessin' we'd have another antenna on top to cover the air to  air exchange of data we don't have now. So far TIS-B has been a nice pair of  extra eyes in the cockpit with us when working, and covers most of the busier  places we fly.

  

 P.S. I think those little shark fins break off even easier than the little  whips do. Be careful dragging a preheater tube under the aircraft. (That one  wasn't my fault for once!)

  

 Steve

 [quote]   ---

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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BillLeff1(at)aol.com
Guest

Posted: Fri Mar 06, 2009 8:26 pm Post subject: Shark Fin Antenna

Russel, can you point me to that data for flying with the doors  removed.

  

 Thanks

  

 Bill Leff

  

 BillLeff(at)aol.com

 A Good Credit Sc957551x1201325337/aol?redir=http:%2F%2Fwww.freecreditreport.com%2Fpm%2Fdefault.aspx%3Fsc%3D668072%26hmpgID%3D62%26bcd%3DfebemailfooterNO62"> See yours in just 2 easy steps!

  [quote][b]

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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