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Tailwheel steering

 
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douweblumberg(at)earthlin
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PostPosted: Wed Jul 02, 2014 4:20 am    Post subject: Tailwheel steering Reply with quote

Andy

I personally like a separate set of cables to steer the tailwheel and have been happy with it. I set it up just like bill rewey did.

One often overlooked issue is steering ratio. To avoid an overly squirrelly steering response the wheel should turn the same ratio (or even less IMHO) than the rudder. This requires the wheel steering horns be the same length as on the rudder

I used a 3" wheel to keep weight down and everyone told me it wouldn't have steering authority and it would wear out real quick but it's working great. I just bought ten at the same time thinking I'd change it each season and haven't changed it after about 75hrs

I just don't think we really need these big honkin' wheels back there

$.02

Douwe

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braywood



Joined: 29 Sep 2012
Posts: 17
Location: Northern Ireland

PostPosted: Sat Feb 24, 2018 4:03 am    Post subject: Re: Tailwheel steering Reply with quote

This is not a reply, but discussion on the same topic.
Recently saw article about the Superstol, and it has a free-castoring, lockable tail wheel.
How would this principle work on the Piet? Simpler design....?
Comments please!


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steven.d.dortch(at)gmail.
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PostPosted: Sat Feb 24, 2018 5:47 am    Post subject: Tailwheel steering Reply with quote

While the wheel is free castering your only control is prop blast over the rudder or differential braking. Your brakes must be strong and effective. You may look like you are drunk when you taxi. 

Once you are lined up you will have to get the plane exactly straight with the runway. When you lock the tail wheel, that is where you are going until the wheel comes up. 
It will require more attention to taxi and takeoff.
The pietenpol setup is not complex. 
On Feb 24, 2018 6:05 AM, "braywood" <braywood(at)hotmail.com (braywood(at)hotmail.com)> wrote:
Quote:
--> Pietenpol-List message posted by: "braywood" <braywood(at)hotmail.com (braywood(at)hotmail.com)>

This is not a reply, but discussion on the same topic.
Recently saw article about the Superstol, and it has a free-castoring, lockable tail wheel.
How would this principle work on the Piet? Simpler design....?
Comments please!




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=478223#478223






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steven.d.dortch(at)gmail.
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PostPosted: Sat Feb 24, 2018 7:44 am    Post subject: Tailwheel steering Reply with quote

My memory of a buddy describing his free castering, locking tailwheel. He said the dang thing would not lock up straight when you wanted it to and would not castor when you wanted it to. They do work well on a C47 because of the twin engines giving differential thrust for steering. 
Of course it is called Experimental aviation and people have used them sucessfully. 
Blue Skies,
Steve D
 
On Sat, Feb 24, 2018 at 7:40 AM, Steven Dortch <steven.d.dortch(at)gmail.com (steven.d.dortch(at)gmail.com)> wrote:
Quote:
While the wheel is free castering your only control is prop blast over the rudder or differential braking. Your brakes must be strong and effective. You may look like you are drunk when you taxi. 

Once you are lined up you will have to get the plane exactly straight with the runway. When you lock the tail wheel, that is where you are going until the wheel comes up. 
It will require more attention to taxi and takeoff.
The pietenpol setup is not complex. 
On Feb 24, 2018 6:05 AM, "braywood" <braywood(at)hotmail.com (braywood(at)hotmail.com)> wrote:
Quote:
--> Pietenpol-List message posted by: "braywood" <braywood(at)hotmail.com (braywood(at)hotmail.com)>

This is not a reply, but discussion on the same topic.
Recently saw article about the Superstol, and it has a free-castoring, lockable tail wheel.
How would this principle work on the Piet? Simpler design....?
Comments please!




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=478223#478223






====================================
br> enpol-List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List
====================================
FORUMS -
eferrer" target="_blank">http://forums.matronics.com
====================================
WIKI -
errer" target="_blank">http://wiki.matronics.com
====================================
b Site -
          -Matt Dralle, List Admin.
rel="noreferrer" target="_blank">http://www.matronics.com/contribution
====================================









--
Blue Skies,

Steve D


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taildrags



Joined: 29 Dec 2009
Posts: 1609
Location: Medford, OR

PostPosted: Sun Feb 25, 2018 1:15 pm    Post subject: Re: Tailwheel steering Reply with quote

Some years ago I changed out the worn-out Scott tailwheel on my airplane for a Matco. It's a nice tailwheel but the free-castoring operation of the two is quite different and the Matco has taken some getting used to. The Matco breaks over from steerable to free-castoring just fine, but requires 'encouragement' to go back to steerable mode. The time when I notice this most is after I've broken it over to swing the nose into the wind to perform a runup and systems check before takeoff. When the runup and preflight checks are complete and I'm ready to roll over to the end of the runway for departure, adding power with the rudder pedals neutralized will surprise me by the airplane wanting to turn back down the taxiway instead of over to the runway. I have to consciously kick opposite rudder and get rolling before the tailwheel will re-engage in steering mode and go where I want it to go. Differential braking is very positive and always available on my airplane, but I'm used to using tailwheel steering on the ground.

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Air Camper NX41CC "Scout"
A75 power, 72x36 Culver prop
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