A aviation & planes forum. AviationBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » AviationBanter forum » rec.aviation newsgroups » Soaring
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Rudder pedal S-tubes



 
 
Thread Tools Display Modes
  #11  
Old May 16th 19, 05:48 PM posted to rec.aviation.soaring
Jj
external usenet poster
 
Posts: 7
Default Rudder pedal S-tubes

Changing the length of cables is far from questioning the manufacturers design. It is altering it without acceptable or approved data.
Ads
  #12  
Old May 16th 19, 07:44 PM posted to rec.aviation.soaring
[email protected]
external usenet poster
 
Posts: 262
Default Rudder pedal S-tubes

Hmmmm.....is there another JJ out there?
The original JJ has been flying around with rudder pedals that match the angle of his feet when seated in a reclined position for close to 50 years now and I know a whole bunch of other pilots that are doing the same. I did mention to check for full rudder deflection after adjusting pedal angle and this should be done with the pedals in their full forward position, also. As a mater of fact, I found I was unable to get full rudder deflection in my Genesis-2, after installing a nose water tank..........hmmmmm, yes Jj, I added a nose tank to counter balance the wing water. I hear you saying, “you shouldn’t be adding anything to any sailplane, and you got that backwards, anyway! Well, you see, the allowable CG range on the Genesis is zero to 5.25” aft of the root rib , but the wing water tank is about 12” deep, so when wing water goes in, the CG shifts aft, sense the need for a nose tank. The esteemed designers told me to fix this little problem by installing lead weights in the nose, but that left me flying around with a forward CG, after I dumbed the wing water. Oh, one more little problem, the Genesis refuses to climb unless the CG is at least 4.75” aft of datum!
Back to the problem of the rudder pedals hitting my nose water tank............I blocked off the forward hole, so that I can’t move the rudder pedals all the way forward..........problem solved!
The original JJ
  #13  
Old May 16th 19, 10:08 PM posted to rec.aviation.soaring
[email protected]
external usenet poster
 
Posts: 1,849
Default Rudder pedal S-tubes

On Thursday, May 16, 2019 at 12:48:55 PM UTC-4, Jj wrote:
Changing the length of cables is far from questioning the manufacturers design. It is altering it without acceptable or approved data.


It's actually not all that critical in this type of installation. Many ships have provisions for such an adjustment. Cable tension, which is part of the flutter prevention element, is done by the springs that pull directly on the pedals.
FWIW
UH
  #14  
Old May 17th 19, 06:06 PM posted to rec.aviation.soaring
JS[_5_]
external usenet poster
 
Posts: 453
Default Rudder pedal S-tubes

On Thursday, May 16, 2019 at 2:08:10 PM UTC-7, wrote:
On Thursday, May 16, 2019 at 12:48:55 PM UTC-4, Jj wrote:
Changing the length of cables is far from questioning the manufacturers design. It is altering it without acceptable or approved data.


It's actually not all that critical in this type of installation. Many ships have provisions for such an adjustment. Cable tension, which is part of the flutter prevention element, is done by the springs that pull directly on the pedals.
FWIW
UH


Looked at this while inspecting the Duo (original, same fuselage as Janus Ce) rudder cables in the shop. It would definitely make the back seat more comfortable.
Full rudder deflection and "feet off" cable tension would be unaffected, but the tension springs may rub on the composite spring covers after adding a link.
Jim
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Antares rudder pedal dimensions sisu1a Soaring 1 March 22nd 18 04:38 PM
Discus Rudder Pedal Adjustment [email protected] Soaring 3 February 26th 16 05:11 PM
rudder pedal springs Dick[_1_] Home Built 6 May 20th 08 07:23 PM
Need Grob 103 Twin II left front rudder pedal Mike McCarron Soaring 1 May 15th 06 02:16 PM
Piper Rudder Pedal Pads Mike Spera Owning 1 November 4th 05 03:31 AM


All times are GMT +1. The time now is 12:07 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Copyright 2004-2019 AviationBanter.
The comments are property of their posters.