Tailwheel Steering

How to keep the Cessna 170 flying and airworthy.

Moderators: GAHorn, Karl Towle, Bruce Fenstermacher

User avatar
Curtis Brown
Posts: 273
Joined: Tue Apr 23, 2002 3:47 pm

Post by Curtis Brown »

It makes me curious about how it is getting bent also. I do not think my chains are too tight, they are about like George describes. The chains are just taut and there is no noticeable tension on the springs when on the ground. It is really only the right side that has bent upwards too far. We bent it back down only to notice it to return bent again. I do not want to bent it back and forth as that may weaken it even more.
What is the different in compression and tension springs and how do I tell which I have.
Curtis
1950 A model 1256D
User avatar
N2255D
Posts: 489
Joined: Wed Apr 24, 2002 3:42 am

Post by N2255D »

Walt Weaver
Spencer Airport (NC35)
User avatar
GAHorn
Posts: 21302
Joined: Fri Apr 12, 2002 8:45 pm

Post by GAHorn »

I take issue with the advertising which accompanies the compression spring display: "Original tension type springs keep rudder post under continuous tension which wears the hinges. Compression type springs keep rudder neutral - no tension on post."

Since BOTH systems should be adjusted to provide slight tension....then BOTH systems will also apply equal pressure to any "rudder post". In fact, any movement or tendency to tighten the chains ....will increase the pressures of the compression springs upon the system even greater than the original tension springs. (By the way, the tension springs shown at Spruce is also not original. They are a "lightweight" kit,....smaller diameter than the original springs. The original types are (I believe) known as the "heavy duty" tension spring kit, ....not displayed...but available from Spruce as PN 06-00008... for about $20.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
User avatar
N2255D
Posts: 489
Joined: Wed Apr 24, 2002 3:42 am

Post by N2255D »

Sorry George. I was just trying to give a look at what the differences were. This seemed like the quickest and easiest way. I tried to just cut and past the picture but couldn't get that to work. I suppose I could have gone back and researched how to do that but was being lazy.
Walt Weaver
Spencer Airport (NC35)
User avatar
GAHorn
Posts: 21302
Joined: Fri Apr 12, 2002 8:45 pm

Post by GAHorn »

N2255D wrote:Sorry George. I was just trying to give a look at what the differences were. This seemed like the quickest and easiest way. I tried to just cut and past the picture but couldn't get that to work. I suppose I could have gone back and researched how to do that but was being lazy.
What are you apologizing for, Walt? I think it was pretty nice and helpful of you to do it! No complaints here. Thanks!
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
User avatar
Curtis Brown
Posts: 273
Joined: Tue Apr 23, 2002 3:47 pm

Post by Curtis Brown »

I also think that was pretty nice... thanks.
Looks like I have compression springs.
Curtis
1950 A model 1256D
Post Reply
Cessna® is a registered trademark of Textron Aviation, Inc. The International Cessna® 170 Association is an independent owners/operators association dedicated to C170 aircraft and early O-300-powered C172s. We are not affiliated with Cessna® or Textron Aviation, Inc. in any way.