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

hydraulic disk brake upgrade



 
 
Thread Tools Display Modes
  #1  
Old June 26th 13, 11:25 PM posted to rec.aviation.soaring
shkdriver shkdriver is offline
Member
 
First recorded activity by AviationBanter: Aug 2008
Posts: 70
Default hydraulic disk brake upgrade

Hello,
Has anyone done a disc brake replacement of an original drum brake?
I have reverse engineered a replacement 400x4 wheel for my SHK-1 which uses a hydraulic disk and caliper, and a beringer stick mounted lever master cylinder all employing dot 4 brake fluid, (EPDM seals throughout)
The original axle, and retractable landing gear are not modified and are retained, the new components all weigh within 2 lbs of the original (Zundapp motorcycle) wheel. The new wheel required fabrication of spacers and the construction of a new torque arm using existing gear leg anchor "lug".
My glider is not identified in any Schempp-Hirth supplemental TC's for a disk brake modification, however, the tost disk brake conversions are all termed "minor alterations" in the Easa documentation for Discus-Ventus etc.
Further, Schempp-Hirth has informed me that they no longer support the SHK, due to resource management considerations.

I am mostly interested in fellow glider owners who would be willing to supply a copy of any 337's, or logbook entries concerning the installation of a disk brake, and or a beringer lever master cylinder into a standard type certificated glider. My A&P AI would be performing the installation, and is interested in how others have documented these installations.
If other Owners were only willing to share their experience (and Tail number), I could get copies of the 337 from the FAA.
This is essentially an installation of owner produced parts, not to be sold..

I guess I should also put in here that I have read most of the prior threads about Vintage brake, arcing pads, the kobold/hydraulic/cable kit, Modifying the drum shoes to be "self energizing" and just living with an ineffective factory brake.
So, Thanks for reading, and here's to a safe and fun season!

Good Lift,
Scott W.


Ads
  #2  
Old June 26th 13, 11:30 PM posted to rec.aviation.soaring
Martin Gregorie[_5_]
external usenet poster
 
Posts: 1,234
Default hydraulic disk brake upgrade

On Wed, 26 Jun 2013 15:25:17 -0700, shkdriver wrote:

Hello,
Has anyone done a disc brake replacement of an original drum brake?

Ask Rick Mayes at Williams Soaring.

Back in 2001 I flew their SZD Junior, which they'd converted to a
hydraulic brake (I can't remember if it was disk or drum, sorry. It
worked much better than the usual factory-fitted Junior brake which is
digital - it either binds but stops the glider or doesn't bind and
doesn't stop it. They no longer have a Junior, but I'd be surprised if
they can't help.


--
[email protected] | Martin Gregorie
gregorie. | Essex, UK
org |
  #3  
Old June 27th 13, 05:41 PM posted to rec.aviation.soaring
Dave Nadler
external usenet poster
 
Posts: 1,296
Default hydraulic disk brake upgrade

On Wednesday, June 26, 2013 4:25:17 PM UTC-6, shkdriver wrote:
I am mostly interested in...
a beringer lever master cylinder into a standard type certificated glider.


The Beringer master cylinder is used in all Antares
and IIRC current SH gliders with Beringer wheels.

Hope that helps,
Best Regards, Dave "YO electric"

PS: The Beringer brake system is fabulous !
A real, reliable, light, super-effective wheel-brake !
 




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
Tost 5“Penta disk brake wheel Mod for Duo Discus Mike I Green Soaring 0 February 6th 12 09:38 PM
Hydraulic Brake Problems Mystery! John Sullivan Soaring 6 March 31st 11 03:00 PM
Hydraulic brake problems Dick[_3_] Soaring 15 March 29th 11 06:31 AM
hydraulic brake actuation Brad[_2_] Soaring 15 January 9th 09 05:46 AM
Tost Disk Brake rebuild? Paul Cordell Soaring 10 April 17th 08 07:20 AM


All times are GMT +1. The time now is 12:56 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright ©2004-2018 AviationBanter.
The comments are property of their posters.