Matronics Email Lists Forum Index Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
 
 Get Email Distribution Too!Get Email Distribution Too!    FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

TR-1 Nose Gear

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> KIS-List
View previous topic :: View next topic  
Author Message
bakerocb



Joined: 15 Jan 2006
Posts: 727
Location: FAIRFAX VA

PostPosted: Thu Apr 14, 2016 11:18 am    Post subject: TR-1 Nose Gear Reply with quote

4/14/2016

Hello Mark, Thanks for weighing in on this subject. You wrote:

1) “I am sorry to say the secrets of the nose gear spring were only known by Vance.”

The KIS family lost a true friend when he passed. I wonder if any one in his family could help. I’ll try an email address from his web site. http://www.oocities.org/vjaqua/

2) “I do have an engineer who has access to test equipment that can determine the parameters of the spring.”

That is one approach. Another is to assume that: a) the spring was a standard catalog item (maybe from McMaster Carr?); b) that same catalog item is still available; and c) by just using the spring dimensions Lyle would be able to identify and order a duplicate spring. A picture of the top of the spring which is installed in my plane is attached.

3) “If I can get somebody to take their TR-1 nose gear apart and send me the spring I can send it to the engineer and he will test it.”

Or, if somebody could just remove their KIS TR-1 nose gear coil spring (hopefully from a non flying airplane) and provide some accurate dimensions we could identify it that way. See my related and redacted April 09, 2016 9:55 AM email copied below.

OC

=================================


From: Mark Trickel (marktrickel(at)gmail.com)
Sent: Thursday, April 14, 2016 8:51 AM
To: Owen Baker (bakerocb(at)cox.net)
Cc: HENDRICKS LYLE (lyle(at)hendricksmfg.com) ; ERSTAD HANS CHRISTIAN (hans.erstad(at)gmail.com) ; MILLER KEITH (Keith.Miller(at)esa.int) ; Kettering Mark (mantafs(at)earthlink.net) ; Melyon Solly (sollymelyon(at)yahoo.com)
Subject: Re: Fw: TR-1 Nose Gear


KIS TR-1 nose gear spring

I am sorry to say the secrets of the nose gear spring were only known by Vance. I do have an engineer who has access to test equipment that can determine the parameters of the spring. He has already do so for the TR-4 spring set (this gear uses two different springs one heavy duty and one medium duty. If I can get somebody to take their TR-1 nose gear apart and send me the spring I can send it to the engineer and he will test it. I have sent an email to him to make sure he will do this for us.

Regards,
Mark Trickel

=====================================

From: Owen Baker
Sent: Saturday, April 09, 2016 9:55 AM
To: HENDRICKS LYLE
Subject: UK TR-1 Nose Gear

4/9/2016

Hello Lyle, I went out to the hangar yesterday, partially disassembled my
airplane and took some
nose gear related photos and measurements. I'd like to take another stab at
answering your original
April 06, 2016 12:49 PM email (copied below). You wrote:

1) "My question to you is re: the upper spring."

Selecting the McMaster Carr coil spring that matches the one in my airplane
is not as explicit as I would like.
First off, my previous estimate of the uncompressed spring length of 12
inches, based on appearance in the
attached 429 KB photo, was wrong. The measured length on my nose gear coil
spring (as installed) is
very near 8 inches.

The measured outside diameter of my coil spring (using a C clamp as a
micrometer) is very close to 2 inches. There
are two 8 inch long coil springs in the McM C catalog that nearly fit that 2
inch OD dimension: 96485K164 at 2.187 inches OD
and 96485K386 at 1.917 inches OD. So I can not discriminate between those
two P/N solely on OD. See here:

http://www.mcmaster.com/#compression-springs/=11wlo5u

Wire diameter does not appear to be a good discriminator for two reasons: a)
the wire in my spring is not round, but
is flattened on the top and bottom; and b) accurate wire diameter
measurement access to my spring is difficult. For both of those
reasons an accurate wire diameter measurement is difficult. In the catalog
P/N 164 has a wire diameter of 0.25 and P/N 386 has
a wire diameter of 0.312. My estimate favors P/N 164.

Regarding max load: P/N 164 has a max load of 274 pounds and P/N 386 has a
max load of 597 pounds. My plane has an
empty weight of 242 pounds on the nose gear so a max load rating of 274
seems a bit marginal to me, but then I don't know
what the criteria for max load is (fully compress the spring or ???). 597
pounds seems very stiff to me.

Maybe you can discriminate between the two P/N's by which spring will best
fit over the compression rod. P/N 164 should have a
calculated inner diameter of 1.687 inches and P/N 386 should have an inner
diameter of 1.293 inches.

My choice between the two McM C springs would be P/N 164.


xxxxxxxxxxxxxxxxxxx BIG SKIP xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx


OC

==============================================

From: Lyle Hendricks
Sent: Wednesday, April 06, 2016 12:49 PM
To: bakerocb(at)cox.net (bakerocb(at)cox.net)
Subject: TR-1 Nose Gear

Hello OC, How have you been? I'm currently working on a TR-1 nose gear project for a gentleman who has suffered a failure of the original design. With approval from the UK LAA, we hope to get him and his plane back in the air. My question to you is re: the upper spring. I know Rich used McMaster Carr as a supplier for the spring, however, I am unable to identify the part number of the spring. As I recall, you may have had to purchase one of these springs when we made a new nose gear assy for you a while back. Any info about the spring and the rubber washers/bushings which surround it would be greatly appreciated as I am attempting to supply a complete, ready to install unit to his mechanic. I’d also like to confirm the length of the upper tube (7.875”) and the overall length of the compression rod including threaded portion (18.093”) if you have the means to do so without too much trouble. Do you recall having any adjustment or modification issues while installing your nose gear?

Thank you for your help,

Lyle Hendricks

Hendricks Mfg., Inc.

[url=tel:208-476-7740]208-476-7740[/url]

http://www.HendricksMfg.com


- The Matronics KIS-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?KIS-List



4-9-16_CAMERA_001.JPG
 Description:
 Filesize:  747 KB
 Viewed:  3148 Time(s)

4-9-16_CAMERA_001.JPG


Back to top
View user's profile Send private message
aeromomentum(at)yahoo.com
Guest





PostPosted: Thu Apr 14, 2016 11:59 am    Post subject: TR-1 Nose Gear Reply with quote

These are standard die springs from McMaster and follow the Raymond die springs color code.

http://www.mcmaster.com/#standard-die-springs/=11zcvvg but check the size!

--------------------------------------------
On Thu, 4/14/16, Owen Baker <bakerocb(at)cox.net> wrote:

Subject: Re: TR-1 Nose Gear
To: "Mark Trickel" <marktrickel(at)gmail.com>, "KIS-LIST MATRONICS" <kis-list(at)matronics.com>, hagerson(at)pacbell.net
Date: Thursday, April 14, 2016, 3:17 PM





4/14/2016
 
Hello Mark, Thanks for weighing in on this subject. You
wrote:
 
1) “I am sorry to say the secrets of the nose gear
spring were only known
by Vance.”
 
The KIS family lost a true friend when he passed. I
wonder if any one in
his family could help. I’ll try an email address from his
web site. http://www.oocities.org/vjaqua/
 
2) “I do have an engineer who has access to test
equipment that can
determine the parameters of the spring.”
 
That is one approach. Another is to assume that: a) the
spring was a
standard catalog item (maybe from McMaster Carr?); b) that
same catalog item is
still available; and c) by just using the spring dimensions
Lyle would be able
to identify and order a duplicate spring. A picture of the
top of the spring
which is installed in my plane is attached.
 
3) “If I can get somebody to take their TR-1 nose
gear apart and send me
the spring I can send it to the engineer and he will test
it.”
 
Or, if somebody could just remove their KIS TR-1 nose
gear coil spring
(hopefully from a non flying airplane) and provide some
accurate dimensions we
could identify it that way. See my related and redacted
April 09, 2016 9:55 AM
email copied below.
 
OC
 
=================================
 


 

From: Mark
Trickel
Sent: Thursday, April 14, 2016 8:51 AM
To: Owen
Baker
Cc: HENDRICKS
LYLE ; ERSTAD HANS
CHRISTIAN ; MILLER
KEITH ; Kettering
Mark ; Melyon
Solly
Subject: Re: Fw: TR-1 Nose
Gear
 


KIS TR-1 nose gear spring
 
I am sorry to say the secrets of the nose gear spring
were only known by
Vance. I do have an engineer who has access to test
equipment that can determine
the parameters of the spring. He has already do so for the
TR-4 spring set (this
gear uses two different springs one heavy duty and one
medium duty. If I can get
somebody to take their TR-1 nose gear apart and send me the
spring I can send it
to the engineer and he will test it. I have sent an email to
him to make sure he
will do this for us.
 
Regards,
Mark Trickel
 
=====================================
 
From: Owen Baker 
Sent: Saturday, April 09, 2016 9:55 AM
To: HENDRICKS LYLE
Subject: UK TR-1 Nose Gear
 
4/9/2016
 
Hello Lyle, I went out to the hangar yesterday,
partially disassembled my

airplane and took some
nose gear related photos and measurements. I'd like
to take another stab at

answering your original
April 06, 2016 12:49 PM email (copied below). You
wrote:
 
1) "My question to you is re: the upper
spring."
 
Selecting the McMaster Carr coil spring that matches
the one in my airplane

is not as explicit as I would like.
First off, my previous estimate of the uncompressed
spring length of 12

inches, based on appearance in the
attached 429 KB photo, was wrong. The measured length
on my nose gear coil

spring (as installed) is
very near 8 inches.
 
The measured outside diameter of my coil spring (using
a C clamp as a

micrometer) is very close to 2 inches. There
are two 8 inch long coil springs in the McM C catalog
that nearly fit that
2
inch OD dimension: 96485K164 at 2.187 inches OD
and 96485K386 at 1.917 inches OD. So I can not
discriminate between those

two P/N solely on OD. See here:
 
http://www.mcmaster.com/#compression-springs/=11wlo5u
 
Wire diameter does not appear to be a good
discriminator for two reasons:
a)
the wire in my spring is not round, but
is flattened on the top and bottom; and b) accurate
wire diameter
measurement access to my spring is difficult. For both
of those
reasons an accurate wire diameter measurement is
difficult. In the catalog

P/N 164 has a wire diameter of 0.25 and P/N 386
has
a wire diameter of 0.312. My estimate favors P/N
164.
 
Regarding max load: P/N 164 has a max load of 274
pounds and P/N 386 has a

max load of 597 pounds. My plane has an
empty weight of 242 pounds on the nose gear so a max
load rating of 274

seems a bit marginal to me, but then I don't
know
what the criteria for max load is (fully compress the
spring or ???). 597

pounds seems very stiff to me.
 
Maybe you can discriminate between the two P/N's by
which spring will best

fit over the compression rod. P/N 164 should have
a
calculated inner diameter of 1.687 inches and P/N 386
should have an inner

diameter of 1.293 inches.
 
My choice between the two McM C springs would be P/N
164.
 
 
xxxxxxxxxxxxxxxxxxx   BIG SKIP 
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
 
 
OC
 
==============================================

From: Lyle
Hendricks
Sent: Wednesday, April 06, 2016 12:49 PM
To: bakerocb(at)cox.net
Subject:
TR-1 Nose Gear

Hello OC, How have you been? I'm currently working on a
TR-1 nose gear project for a gentleman who has suffered a
failure of the
original design. With approval from the UK LAA, we hope to
get him and his plane
back in the air. My question to you is re: the upper spring.
I know Rich used
McMaster Carr as a supplier for the spring, however, I am
unable to identify the
part number of the spring. As I recall, you may have had to
purchase one of
these springs when we made a new nose gear assy for you a
while back. Any info
about the spring and the rubber washers/bushings which
surround it would be
greatly appreciated as I am attempting to supply a complete,
ready to install
unit to his mechanic. I’d also like to confirm the length
of the upper tube
(7.875”) and the overall length of the compression rod
including threaded
portion (18.093”) if you have the means to do so without
too much trouble. Do
you recall having any adjustment or modification issues
while installing your
nose gear?

Thank you for your help,

Lyle
Hendricks

Hendricks Mfg., Inc.

208-476-7740

http://www.HendricksMfg.com



 


- The Matronics KIS-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?KIS-List
Back to top
jerzy_krasinski(at)sbcglo
Guest





PostPosted: Thu Apr 14, 2016 1:15 pm    Post subject: TR-1 Nose Gear Reply with quote

Hello,
I have in my barn the old style steerable front gear for KIS Cruiser with the springs.
I hope its not rusted, I have to check it.
If anybody has an interest in that gear or just the springs please let me know.


Jerzy Krasinski jerzy_krasinski(at)sbcglobal.net

On Thursday, April 14, 2016 2:17 PM, Owen Baker <bakerocb(at)cox.net> wrote:



4/14/2016

Hello Mark, Thanks for weighing in on this subject. You wrote:

1) “I am sorry to say the secrets of the nose gear spring were only known by Vance.”

The KIS family lost a true friend when he passed. I wonder if any one in his family could help. I’ll try an email address from his web site. http://www.oocities.org/vjaqua/

2) “I do have an engineer who has access to test equipment that can determine the parameters of the spring.”

That is one approach. Another is to assume that: a) the spring was a standard catalog item (maybe from McMaster Carr?); b) that same catalog item is still available; and c) by just using the spring dimensions Lyle would be able to identify and order a duplicate spring. A picture of the top of the spring which is installed in my plane is attached.

3) “If I can get somebody to take their TR-1 nose gear apart and send me the spring I can send it to the engineer and he will test it.”

Or, if somebody could just remove their KIS TR-1 nose gear coil spring (hopefully from a non flying airplane) and provide some accurate dimensions we could identify it that way. See my related and redacted April 09, 2016 9:55 AM email copied below.

OC

=================================


From: Mark Trickel (marktrickel(at)gmail.com)
Sent: Thursday, April 14, 2016 8:51 AM
To: Owen Baker (bakerocb(at)cox.net)
Cc: HENDRICKS LYLE (lyle(at)hendricksmfg.com) ; ERSTAD HANS CHRISTIAN (hans.erstad(at)gmail.com) ; MILLER KEITH (Keith.Miller(at)esa.int) ; Kettering Mark (mantafs(at)earthlink.net) ; Melyon Solly (sollymelyon(at)yahoo.com)
Subject: Re: Fw: TR-1 Nose Gear


KIS TR-1 nose gear spring

I am sorry to say the secrets of the nose gear spring were only known by Vance. I do have an engineer who has access to test equipment that can determine the parameters of the spring. He has already do so for the TR-4 spring set (this gear uses two different springs one heavy duty and one medium duty. If I can get somebody to take their TR-1 nose gear apart and send me the spring I can send it to the engineer and he will test it. I have sent an email to him to make sure he will do this for us.

Regards,
Mark Trickel

=====================================

From: Owen Baker
Sent: Saturday, April 09, 2016 9:55 AM
To: HENDRICKS LYLE
Subject: UK TR-1 Nose Gear

4/9/2016

Hello Lyle, I went out to the hangar yesterday, partially disassembled my
airplane and took some
nose gear related photos and measurements. I'd like to take another stab at
answering your original
April 06, 2016 12:49 PM email (copied below). You wrote:

1) "My question to you is re: the upper spring."

Selecting the McMaster Carr coil spring that matches the one in my airplane
is not as explicit as I would like.
First off, my previous estimate of the uncompressed spring length of 12
inches, based on appearance in the
attached 429 KB photo, was wrong. The measured length on my nose gear coil
spring (as installed) is
very near 8 inches.

The measured outside diameter of my coil spring (using a C clamp as a
micrometer) is very close to 2 inches. There
are two 8 inch long coil springs in the McM C catalog that nearly fit that 2
inch OD dimension: 96485K164 at 2.187 inches OD
and 96485K386 at 1.917 inches OD. So I can not discriminate between those
two P/N solely on OD. See here:

http://www.mcmaster.com/#compression-springs/=11wlo5u

Wire diameter does not appear to be a good discriminator for two reasons: a)
the wire in my spring is not round, but
is flattened on the top and bottom; and b) accurate wire diameter
measurement access to my spring is difficult. For both of those
reasons an accurate wire diameter measurement is difficult. In the catalog
P/N 164 has a wire diameter of 0.25 and P/N 386 has
a wire diameter of 0.312. My estimate favors P/N 164.

Regarding max load: P/N 164 has a max load of 274 pounds and P/N 386 has a
max load of 597 pounds. My plane has an
empty weight of 242 pounds on the nose gear so a max load rating of 274
seems a bit marginal to me, but then I don't know
what the criteria for max load is (fully compress the spring or ???). 597
pounds seems very stiff to me.

Maybe you can discriminate between the two P/N's by which spring will best
fit over the compression rod. P/N 164 should have a
calculated inner diameter of 1.687 inches and P/N 386 should have an inner
diameter of 1.293 inches.

My choice between the two McM C springs would be P/N 164.


xxxxxxxxxxxxxxxxxxx BIG SKIP xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx


OC

==============================================

From: Lyle Hendricks
Sent: Wednesday, April 06, 2016 12:49 PM
To: bakerocb(at)cox.net (bakerocb(at)cox.net)
Subject: TR-1 Nose Gear

Hello OC, How have you been? I'm currently working on a TR-1 nose gear project for a gentleman who has suffered a failure of the original design. With approval from the UK LAA, we hope to get him and his plane back in the air. My question to you is re: the upper spring. I know Rich used McMaster Carr as a supplier for the spring, however, I am unable to identify the part number of the spring. As I recall, you may have had to purchase one of these springs when we made a new nose gear assy for you a while back. Any info about the spring and the rubber washers/bushings which surround it would be greatly appreciated as I am attempting to supply a complete, ready to install unit to his mechanic. I’d also like to confirm the length of the upper tube (7.875”) and the overall length of the compression rod including threaded portion (18.093”) if you have the means to do so without too much trouble. Do you recall having any adjustment or modification issues while installing your nose gear?

Thank you for your help,

Lyle Hendricks

Hendricks Mfg., Inc.

[url=]208-476-7740[/url]

http://www.HendricksMfg.com


- The Matronics KIS-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?KIS-List
Back to top
gbrighton(at)skymesh.com.
Guest





PostPosted: Thu Apr 14, 2016 1:56 pm    Post subject: TR-1 Nose Gear Reply with quote

Hi Guys,
My TR1 Nose gear Leg is disassembled and is at the Hanger .... I'll try to get there tomorrow and check physical Dimensions and report back ..,
Cheers
Graham .


- The Matronics KIS-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?KIS-List
Back to top
aeromomentum(at)yahoo.com
Guest





PostPosted: Thu Apr 14, 2016 6:56 pm    Post subject: TR-1 Nose Gear Reply with quote

Quote:
From my old calculations for the TR-1 nose gear it looks like the desired spring rate is 329.7 lbs/in. The McMaster part number 9584K99,
http://www.mcmaster.com/#9584k99/=11zi7a8 looks like it meets this number nicely, the size OC provided and the color in the picture OC provided. It also meets the color and size on my TR-1 nose gear.


Mark K

--------------------------------------------
On Thu, 4/14/16, jerzy krasinski <jerzy_krasinski(at)sbcglobal.net> wrote:

Subject: Re: Re: TR-1 Nose Gear
To: "kis-list(at)matronics.com" <kis-list(at)matronics.com>
Date: Thursday, April 14, 2016, 5:15 PM

Hello,
I
have in my barn the old style steerable front gear for KIS
Cruiser with the springs.I
hope its not rusted, I have to check it.If
anybody has an interest in that gear or just the springs
please let me know.

Jerzy
Krasinski     jerzy_krasinski(at)sbcglobal.net



On Thursday, April
14, 2016 2:17 PM, Owen Baker <bakerocb(at)cox.net>
wrote:






4/14/2016
 
Hello Mark, Thanks for weighing in on this subject. You
wrote:
 
1) “I am sorry to say the secrets of the nose gear
spring were only known
by Vance.”
 
The KIS family lost a true friend when he passed. I
wonder if any one in
his family could help. I’ll try an email address from his
web site. http://www.oocities.org/vjaqua/
 
2) “I do have an engineer who has access to test
equipment that can
determine the parameters of the spring.”
 
That is one approach. Another is to assume that: a) the
spring was a
standard catalog item (maybe from McMaster Carr?); b) that
same catalog item is
still available; and c) by just using the spring dimensions
Lyle would be able
to identify and order a duplicate spring. A picture of the
top of the spring
which is installed in my plane is attached.
 
3) “If I can get somebody to take their TR-1 nose
gear apart and send me
the spring I can send it to the engineer and he will test
it.”
 
Or, if somebody could just remove their KIS TR-1 nose
gear coil spring
(hopefully from a non flying airplane) and provide some
accurate dimensions we
could identify it that way. See my related and redacted
April 09, 2016 9:55 AM
email copied below.
 
OC
 
=================================
 


 

From: Mark
Trickel
Sent: Thursday, April 14, 2016 8:51 AM
To: Owen
Baker
Cc: HENDRICKS
LYLE ; ERSTAD HANS
CHRISTIAN ; MILLER
KEITH ; Kettering
Mark ; Melyon
Solly
Subject: Re: Fw: TR-1 Nose
Gear
 


KIS TR-1 nose gear spring
 
I am sorry to say the secrets of the nose gear spring
were only known by
Vance. I do have an engineer who has access to test
equipment that can determine
the parameters of the spring. He has already do so for the
TR-4 spring set (this
gear uses two different springs one heavy duty and one
medium duty. If I can get
somebody to take their TR-1 nose gear apart and send me the
spring I can send it
to the engineer and he will test it. I have sent an email to
him to make sure he
will do this for us.
 
Regards,
Mark Trickel
 
=====================================
 
From: Owen Baker 
Sent: Saturday, April 09, 2016 9:55 AM
To: HENDRICKS LYLE
Subject: UK TR-1 Nose Gear
 
4/9/2016
 
Hello Lyle, I went out to the hangar yesterday,
partially disassembled my

airplane and took some
nose gear related photos and measurements. I'd like
to take another stab at

answering your original
April 06, 2016 12:49 PM email (copied below). You
wrote:
 
1) "My question to you is re: the upper
spring."
 
Selecting the McMaster Carr coil spring that matches
the one in my airplane

is not as explicit as I would like.
First off, my previous estimate of the uncompressed
spring length of 12

inches, based on appearance in the
attached 429 KB photo, was wrong. The measured length
on my nose gear coil

spring (as installed) is
very near 8 inches.
 
The measured outside diameter of my coil spring (using
a C clamp as a

micrometer) is very close to 2 inches. There
are two 8 inch long coil springs in the McM C catalog
that nearly fit that
2
inch OD dimension: 96485K164 at 2.187 inches OD
and 96485K386 at 1.917 inches OD. So I can not
discriminate between those

two P/N solely on OD. See here:
 
http://www.mcmaster.com/#compression-springs/=11wlo5u
 
Wire diameter does not appear to be a good
discriminator for two reasons:
a)
the wire in my spring is not round, but
is flattened on the top and bottom; and b) accurate
wire diameter
measurement access to my spring is difficult. For both
of those
reasons an accurate wire diameter measurement is
difficult. In the catalog

P/N 164 has a wire diameter of 0.25 and P/N 386
has
a wire diameter of 0.312. My estimate favors P/N
164.
 
Regarding max load: P/N 164 has a max load of 274
pounds and P/N 386 has a

max load of 597 pounds. My plane has an
empty weight of 242 pounds on the nose gear so a max
load rating of 274

seems a bit marginal to me, but then I don't
know
what the criteria for max load is (fully compress the
spring or ???). 597

pounds seems very stiff to me.
 
Maybe you can discriminate between the two P/N's by
which spring will best

fit over the compression rod. P/N 164 should have
a
calculated inner diameter of 1.687 inches and P/N 386
should have an inner

diameter of 1.293 inches.
 
My choice between the two McM C springs would be P/N
164.
 
 
xxxxxxxxxxxxxxxxxxx   BIG SKIP 
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
 
 
OC
 
==============================================

From: Lyle
Hendricks
Sent: Wednesday, April 06, 2016
12:49 PM
To: bakerocb(at)cox.net
Subject:
TR-1 Nose Gear

Hello OC,
How have you been? I'm currently working on a
TR-1 nose gear project for a gentleman who has suffered a
failure of the
original design. With approval from the UK LAA, we hope to
get him and his plane
back in the air. My question to you is re: the upper spring.
I know Rich used
McMaster Carr as a supplier for the spring, however, I am
unable to identify the
part number of the spring. As I recall, you may have had to
purchase one of
these springs when we made a new nose gear assy for you a
while back. Any info
about the spring and the rubber washers/bushings which
surround it would be
greatly appreciated as I am attempting to supply a complete,
ready to install
unit to his mechanic. I’d also like to confirm the length
of the upper tube
(7.875”) and the overall length of the compression rod
including threaded
portion (18.093”) if you have the means to do so without
too much trouble. Do
you recall having any adjustment or modification issues
while installing your
nose gear?

Thank you for
your help,

Lyle
Hendricks

Hendricks Mfg.,
Inc.

208-476-7740

http://www.HendricksMfg.com



 


- The Matronics KIS-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?KIS-List
Back to top
bakerocb



Joined: 15 Jan 2006
Posts: 727
Location: FAIRFAX VA

PostPosted: Thu Apr 14, 2016 7:06 pm    Post subject: TR-1 Nose Gear Reply with quote

4/14/2016

Hello Graham, Thanks for the quick response. A picture or two would be great also.

OC

PS: We are also very curious as to how long the threaded portion at the bottom of the lower vertical stub is and how the threaded portion is attached to the larger diameter stub material immediately above the threaded portion. Please see the attached picture.

bakerocb at cox.net

===========================================


From: Graham Brighton (gbrighton(at)skymesh.com.au)
Sent: Thursday, April 14, 2016 5:55 PM
To: kis-list(at)matronics.com (kis-list(at)matronics.com)
Subject: Re: Re: TR-1 Nose Gear


Hi Guys,
My TR1 Nose gear Leg is disassembled and is at the Hanger .... I'll try to get there tomorrow and check physical Dimensions and report back .,
Cheers
Graham .
============================================.

From: Owen Baker (bakerocb(at)cox.net)
Sent: Friday, April 15, 2016 5:17 AM
To: Mark Trickel (marktrickel(at)gmail.com) ; KIS-LIST MATRONICS (kis-list(at)matronics.com) ; hagerson(at)pacbell.net (hagerson(at)pacbell.net)
Subject: Re: TR-1 Nose Gear

4/14/2016

Hello Mark, Thanks for weighing in on this subject. You wrote:

1) “I am sorry to say the secrets of the nose gear spring were only known by Vance.”

The KIS family lost a true friend when he passed. I wonder if any one in his family could help. I’ll try an email address from his web site. http://www.oocities.org/vjaqua/

2) “I do have an engineer who has access to test equipment that can determine the parameters of the spring.”

That is one approach. Another is to assume that: a) the spring was a standard catalog item (maybe from McMaster Carr?); b) that same catalog item is still available; and c) by just using the spring dimensions Lyle would be able to identify and order a duplicate spring. A picture of the top of the spring which is installed in my plane is attached.

3) “If I can get somebody to take their TR-1 nose gear apart and send me the spring I can send it to the engineer and he will test it.”

Or, if somebody could just remove their KIS TR-1 nose gear coil spring (hopefully from a non flying airplane) and provide some accurate dimensions we could identify it that way. See my related and redacted April 09, 2016 9:55 AM email copied below.

OC


- The Matronics KIS-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?KIS-List



4-9-16_CAMERA_003.JPG
 Description:
 Filesize:  638.4 KB
 Viewed:  3142 Time(s)

4-9-16_CAMERA_003.JPG


Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> KIS-List All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group