VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics


Go Back   VAF Forums > Model Specific > RV-8/8A
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 04-18-2018, 09:21 AM
donaziza's Avatar
donaziza donaziza is offline
 
Join Date: Jun 2007
Location: Atlanta
Posts: 543
Question Too much slack in tailwheel chains?

There's another post about using or not using flaps in cross wind landings. Let me throw a new wrinkle in this discussion. I "think" I've got too much slack in my tailwheel chains, making it take longer when I hit the rudder pedals for the rudder/tailwheel to react in strong crosswinds. What say the rest of you guys? Do you have your chains really tight, ie, no slack? Slightly loose? Or really loose?

I think I need to take a link or 2 out of my tailwheel chains---but I'd like to get some input first.

Last edited by donaziza : 04-18-2018 at 09:22 AM. Reason: spelling
Reply With Quote
  #2  
Old 04-18-2018, 09:30 AM
Mike S's Avatar
Mike S Mike S is offline
Senior Curmudgeon
 
Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 14,181
Default

Do you have springs in the chains?

In a prior life, I flew a 48 Stinson, when I got it there were no springs in the chains and it was a bear to control. Added springs and took out most of the slack and it tamed the beast.

Compression springs like these are what I used.



I suspect tension type springs are not a good choice.

__________________
Mike Starkey
VAF 909

Rv-10, N210LM.

Flying as of 12/4/2010

Phase 1 done, 2/4/2011

Sold after 240+ wonderful hours of flight.

"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
Reply With Quote
  #3  
Old 04-18-2018, 09:38 AM
Mel's Avatar
Mel Mel is offline
 
Join Date: Mar 2005
Location: Dallas area
Posts: 9,968
Default

I agree with Mike. Compression springs minimal slack.
__________________
Mel Asberry..DAR since last century
A&P/EAA Tech Counselor/Flight Advisor
Specializing in Amateur-Built and Light-Sport Aircraft
<rvmel(at)icloud.com>
North Texas (8TA5)
RV-6 Flying since 1993, 172hp O-320, 3-Blade Catto (since 2003)
Legend Cub purchased 12/2017
FRIEND of the RV-1
Eagle's Nest Mentor
Reply With Quote
  #4  
Old 04-18-2018, 10:01 AM
donaziza's Avatar
donaziza donaziza is offline
 
Join Date: Jun 2007
Location: Atlanta
Posts: 543
Default

Yes, I do have springs---like the ones in Mike's first picture.

Last edited by donaziza : 04-18-2018 at 10:08 AM.
Reply With Quote
  #5  
Old 04-18-2018, 10:16 AM
Ironflight's Avatar
Ironflight Ironflight is offline
VAF Moderator / Line Boy
 
Join Date: Jan 2005
Location: Dayton, NV
Posts: 11,646
Default

Tight chains vs slack in chains is a religious argument that I believe started between Wilbur and Orville.....I have great friends who are great (and we’ll respected)pilots on both sides of the argument. Both obviously work. Personally, I like tailwheel links, but I fly lots of planes with chains - loose and tight -and I just adapt.
__________________
Paul F. Dye
Editor in Chief - KITPLANES Magazine
RV-8 - N188PD - "Valkyrie"
RV-6 (By Marriage) - N164MS - "Mikey"
RV-3B - N13PL - "Tsamsiyu"
A&P, EAA Tech Counselor/Flight Advisor
Dayton Valley Airpark (A34)
http://Ironflight.com
Reply With Quote
  #6  
Old 04-18-2018, 10:20 AM
JonJay's Avatar
JonJay JonJay is offline
 
Join Date: Jan 2007
Location: Battleground
Posts: 3,856
Default

I refuse to believe that one or the other, slack or not, makes that much difference. However, there have been more than one runway departure caused by "pilot induced" oscillation theorized to be caused by too tight of chains/link. I know of two, both low time pilots who over-controlled per their own admission. One changed his set up (looser) until he got more hours, then went back to the tighter set up (link). A very experienced transition trainer will caution against too tight of chains for a tailwheel newbie for these reasons.
I keep my "chains" on the looser side, but that is just personal preference, and not for any other reason as I do not feel it makes that much of a difference in a cross wind. You should already be slipping to keep the airplane from drifting and your slack should be gone. If your slack isn't gone, it isn't that much of a crosswind to worry about.
__________________
Smart People do Stupid things all the time. I know, I've seen me do'em.

RV6 - Builder/Flying
Bucker Jungmann
Fiat G.46 -(restoration in progress, if I have enough life left in me)
RV1 - Proud Pilot.
Reply With Quote
  #7  
Old 04-18-2018, 10:45 AM
rvsxer rvsxer is offline
 
Join Date: May 2007
Location: Inver Grove Hgts, MN
Posts: 286
Default

I still have the old style, non-swiveling tailwheel(!). Tight chains limit rudder travel, even with springs, due to the geometry of the two control horns. I'd rather have the rudder so my chains are slack. Most Pitts Specials I've seen have a full-swivel locking tailwheel (the Haigh was a good one I'm told) with no link to the rudder. I think if you are down to depending on the tailwheel to stop a groundloop you are already too far gone.
__________________
Mike Hilger
RV-6 N207AM w/G3X, 1,500 hours +
South St. Paul, MN (KSGS)
Manager - Panel Design, SteinAir, Inc.
A&P, EAA Tech Counselor

We're all here because we're not all there...
Reply With Quote
  #8  
Old 04-18-2018, 11:11 AM
flyinga flyinga is offline
 
Join Date: Dec 2007
Location: Fredericksburg, TX
Posts: 510
Default

I too started out with lose chains/springs (stock settup). I didn't like it and switched to the Rocket Link which I like much better. As previously mentioned, I think it's "personal preference."
__________________
Jim Averett
RV-8
TS36 - Silver Wings
Fredericksburg, TX
Reply With Quote
  #9  
Old 04-18-2018, 11:31 AM
cajunwings cajunwings is offline
 
Join Date: Jun 2007
Location: new iberia la
Posts: 564
Default Springs

Is there a problem with tension springs?

Don B
Reply With Quote
  #10  
Old 04-18-2018, 12:12 PM
Mel's Avatar
Mel Mel is offline
 
Join Date: Mar 2005
Location: Dallas area
Posts: 9,968
Default

Quote:
Originally Posted by cajunwings View Post
Is there a problem with tension springs?
Don B
Tension springs are fine up to a point. Compression springs have a limiting factor in that they stop when completely compressed. Tension springs don't have that feature, so they can continue to stretch until they eventually loose a portion of their tension.
__________________
Mel Asberry..DAR since last century
A&P/EAA Tech Counselor/Flight Advisor
Specializing in Amateur-Built and Light-Sport Aircraft
<rvmel(at)icloud.com>
North Texas (8TA5)
RV-6 Flying since 1993, 172hp O-320, 3-Blade Catto (since 2003)
Legend Cub purchased 12/2017
FRIEND of the RV-1
Eagle's Nest Mentor
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


All times are GMT -6. The time now is 04:36 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.