Matronics Email Lists :: View topic

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

Tailplane Retention.

Matronics Email Lists Forum Index -> Europa-List

View previous topic :: View next topic

Author Message

mikenjulie.parkin(at)btin
Guest

Posted: Fri Jul 13, 2007 10:00 am Post subject: Tailplane Retention.

Well it looks like this problem is not going to be  over anytime soon.  I'm domestically grounded, having been flooded out in  the June rains - I suspect it will be 2008 before G-JULZ flies again.  It  seems to me that Mod 73 is a 'sticking plaster' solution while they find  something better.  For once I totally support the PFA while they try and  make our aircraft a safer machine.

  

 Here is an idea that might be fairly easy to   implement.

  

 How about threaded bar going right through the  torque shaft.  Some nicely glassed reinforced recesses in the tip of each  tailplane, a couple of nuts and some neat covers to hide it all.

  

 Just thinking out of the box.......  Anyone  got any better ideas.

  

 regards,

  

 Mike

  

   [quote][b]

- The Matronics Europa-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?Europa-List

kheindl(at)msn.com
Guest

Posted: Fri Jul 13, 2007 2:07 pm Post subject: Tailplane Retention.

Hi Mike,



I guess you guys in the UK haven't got much choice on the matter. I 

certainly won't be rushing into yet another mod, apart from the ovalizing. 

All my fittings are completely tight, and the pin cannot possibly move 

sideways in my recess, and it cannot come out, because the lid is a marine 

brass drain plug fitting.

My idea would have been to replace TP5 and TP6 with a one-piece tube, lets 

call it TP56. I think there is a simple way to remove the TP6 without 

damaging the foam, and the TP56 would be bedded in plenty of floxed redux. 

Just how strong does this have to be ?

We still don't know anything about the damaged components in the accident 

plane. In order for the tailplanes to come off, both TP6 must have been 

loose, and the pip pin recesses must have been quite large to allow enough 

sideways movement. Just speculating.



Karl





 	  Quote: 	
		  From: "Mike Parkin" <mikenjulie.parkin(at)btinternet.com>

Reply-To: europa-list(at)matronics.com

To: "Europa-List(at)Matronics.Com" <europa-list(at)matronics.com>

Subject: Tailplane Retention.

Date: Fri, 13 Jul 2007 18:59:07 +0100



Well it looks like this problem is not going to be over anytime soon.  I'm 

domestically grounded, having been flooded out in the June rains - I 

suspect it will be 2008 before G-JULZ flies again.  It seems to me that Mod 

73 is a 'sticking plaster' solution while they find something better.  For 

once I totally support the PFA while they try and make our aircraft a safer 

machine.



Here is an idea that might be fairly easy to  implement.



How about threaded bar going right through the torque shaft.  Some nicely 

glassed reinforced recesses in the tip of each tailplane, a couple of nuts 

and some neat covers to hide it all.



Just thinking out of the box.......  Anyone got any better ideas.



regards,



Mike


	


_________________________________________________________________

Tell MSN about your most memorable emails!  http://www.emailbritain.co.uk/

- The Matronics Europa-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?Europa-List

ptag.dev(at)tiscali.co.uk
Guest

Posted: Fri Jul 13, 2007 4:02 pm Post subject: Tailplane Retention.

Hi! Mike …..the threaded rod would need to “negotiate” past the central drive pins.  

What has happened to Stabilator retention mod. which I saw which has spring levers which drop behind the drive plates when rigging?  

Regards  

Bob Harrison.  

     

Robt.C.Harrison  

  

   

-----Original Message-----

 From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Mike Parkin

 Sent: 13 July 2007 18:59

 To: Europa-List(at)Matronics.Com

 Subject: Tailplane Retention.  

     

Well it looks like this problem is not going to be over anytime soon.  I'm domestically grounded, having been flooded out in the June rains - I suspect it will be 2008 before G-JULZ flies again.  It seems to me that Mod 73 is a 'sticking plaster' solution while they find something better.  For once I totally support the PFA while they try and make our aircraft a safer machine.  

    

   

    

Here is an idea that might be fairly easy to  implement.  

    

   

    

How about threaded bar going right through the torque shaft.  Some nicely glassed reinforced recesses in the tip of each tailplane, a couple of nuts and some neat covers to hide it all.  

    

   

    

Just thinking out of the box.......  Anyone got any better ideas.  

    

   

    

regards,  

    

   

    

Mike  

    

   

  [quote]            - The Europa-List Email Forum -   --> http://www.matronics.com/Navigator?Europa-List              - NEW MATRONICS WEB FORUMS -   --> http://forums.matronics.com [b]

- The Matronics Europa-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?Europa-List

mikenjulie.parkin(at)btin
Guest

Posted: Fri Jul 13, 2007 8:47 pm Post subject: Tailplane Retention.

That is true Bob, but the rod would not have to be  in the centre of the tube to be effective.

  

 regards,

  

 Mike

  

 [quote]   ---

- The Matronics Europa-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?Europa-List

fklein(at)orcasonline.com
Guest

Posted: Fri Jul 13, 2007 9:26 pm Post subject: Tailplane Retention.

Very nice "outside the box" thinking Mike...



Fred



On Friday, July 13, 2007, at 09:46  PM, Mike Parkin wrote:



 	  Quote: 	
		   That is true Bob, but the rod would not have to be in the centre of 

 the tube to be effective.

  

 regards,

  

 Mike




	


[quote] --

- The Matronics Europa-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?Europa-List

carl(at)flyers.freeserve.
Guest

Posted: Sun Jul 15, 2007 1:29 am Post subject: Tailplane Retention.

Im not sure if we are thinking along the same lines  - I mentioned this idea before but nobody picked  up on it.

  

 A very simple solution would be to drop a  long pin (9" long by about 1/4" DIA) through the top of the rib root closeout,  behind the TP 12 drive plate and through the bottom closeout. This could be  secured at the bottom with a sprung split pin and would prevent any outward  movement of the tailplanes.

  

 The pin might need to be made of a hardened  material rather than mild steel (to resist bending) - the TP12 drive plates  would provide a degree of support.

  

 The pin would not need to pass through the TP4  torque tube itself but could be either forward or aft of it or both - 2 pins  (IHMO excessive !!). Through the centre of the torque tube might be better but  this could weaken the torque tube - Europa/ PFA would need to look into  this.

  

 It would probably be necessary to drill  holes through the TP4 flanges (which face inboard) but I cant see this  weakening the drive plates to any significant degree.

  

 To ensure the pin didnt pull through the glass  closeout, small plates could be bonded and riveted to the undersides of the  tailplane closeouts where the pin passes through it.

  

 IHMO this would be a relatively cheap  alternative and about as failsafe as one could wish for. Installation time  less than one hour.

  

 Possibly a tad unsightly with the pin head  protruding above the tailplane surface (this could be recessed) but 100%  effective.

  

 Carl Pattinson

 G-LABS

 [quote]   ---

- The Matronics Europa-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?Europa-List

Display posts from previous:

	Matronics Email Lists Forum Index -> Europa-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum