Go Back  RCU Forums > RC Airplanes > RC Jets
 Uneven braking >

Uneven braking

Community
Search
Notices
RC Jets Discuss RC jets in this forum plus rc turbines and ducted fan power systems

Uneven braking

Thread Tools
 
Search this Thread
 
Old 11-05-2009 | 10:36 AM
  #1  
Thread Starter
 
Joined: Nov 2006
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
From:
Default Uneven braking

I have a problem with uneven braking on a new jet. One wheel locks up way before the other does. I have tried reducing pressure, but it has to be ridiculously low to avoid wheel lock. I have already ruined two tires.

I appreciate any ideas what to do about it.
Old 11-05-2009 | 10:48 AM
  #2  
Senior Member
 
Joined: Sep 2005
Posts: 369
Likes: 0
Received 0 Likes on 0 Posts
From: Newark-On-Trent, UNITED KINGDOM
Default RE: Uneven braking

If it is of the type of brake that uses an expanding O'ring, then you can use an O'ring lubricant, B.V.M. can sell you one.

This usually improves things and and helps to prevent the wheels locking under braking.

Ensure the brake lines to both wheels are the same length
Old 11-05-2009 | 12:21 PM
  #3  
grbaker's Avatar
My Feedback: (29)
 
Joined: Dec 2001
Posts: 3,577
Received 33 Likes on 24 Posts
From: La Porte TX
Default RE: Uneven braking

Like Thomas said, you need to lube the o-rings in the brakes, but go to a store that sells pool supplies and buy a small tube or bottle of silicone o-ring lube.

If you lube the o-rings and still have a problem (and everything else in the system is OK), you can try placing an airline restrictor in the airline to both brakes (1 on each side). I usually place the restrictors just a couple of inches from the brake hub. This slows the activation of the brakes but does still allow full air pressure to them.

Old 11-05-2009 | 12:53 PM
  #4  
ravill's Avatar
My Feedback: (11)
 
Joined: Jan 2003
Posts: 5,720
Received 94 Likes on 76 Posts
From: Granite Bay, Ca
Default RE: Uneven braking


ORIGINAL: grbaker

Like Thomas said, you need to lube the o-rings in the brakes, but go to a store that sells pool supplies and buy a small tube or bottle of silicone o-ring lube.

If you lube the o-rings and still have a problem (and everything else in the system is OK), you can try placing an airline restrictor in the airline to both brakes (1 on each side). I usually place the restrictors just a couple of inches from the brake hub. This slows the activation of the brakes but does still allow full air pressure to them.

I was going to suggest these two as well.

Also, how about 1. a proportional braking system as well (most electronic ones are) and 2. manually "pumping" the brakes to slow the jet down instead of just hitting the brakes and letting them stay on. A gyro will help keep the jet straight even with uneven braking.

Raf
Old 11-05-2009 | 01:09 PM
  #5  
DelGatoGrande's Avatar
My Feedback: (23)
 
Joined: Mar 2004
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
From: ATHENS, , GREECE
Default RE: Uneven braking

stearing gyro

even lenth of airline from brake valve to both brakes

same michanical setup in both brakes

lube as discribed above


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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.