Do you want this big green box to go away? Well here's how...

Click here for full update

Wildcat! photo archives restored.

Click here for full update

Donors can now disable ads.

Click here for instructions

Add yourself to the user map.

Click here for instructions

Amphib Suspension

Converted from Wildcat! database. (read only)
Locked
Bob Fisher

Amphib Suspension

Post by Bob Fisher » Sat Feb 18, 2012 10:31 am

Hi gang -- for any of you who are not happy with your urethane
suspension, like myself, I have some good news.

Today , for the first time, I can actually jump up and down in the
float, watch the wheel go up and down, properly.

I installed die springs in place of urethane. 3.5 in by 1.5 in by .75
in ID Green or extra heavy duty. I did the calculations and figured I
needed this spring. Thats 1750 lbs when fully compressed. I machined
the aluminum washers so they had a .75 boss on them to center the
springs and to get the correct preload-- about .200 in. The springs fit
right in place.They support the plane right at the top of the slot in a
static postion but when you are taxing or landing you can see and feel
them move much more than before.

Besides that it was a great day for flying period and the bay was
smooth.

bob fisher rebel 342 amphib









-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Wayne G. O'Shea

Amphib Suspension

Post by Wayne G. O'Shea » Sat Feb 18, 2012 10:31 am

Sounds good Bob...not that I know anything about die springs.... LOL! Give
us an update after a month or two of "pounding" to see if things are holding
up well.... with no detrimental effects. Turn that "slot" bolt once in
awhile to make sure it hasn't got bent. If you bottom the spring it won't be
as forgiving as the urethane was.

Got my floats attached with spreader bars today and cross braced, ready for
installation to the airplane. Just have a logistics problem right now with
CYP's engine hanging from one of the block and tackles I need to lift the
airplane....and no CYP in site...nor can I get ahold of the (*%$%(!#( that
is painting it. Not a good sign and I don't need this horse rooster right
now!

Wayne

----- Original Message -----
From: "Bob Fisher" <rgfisher@zeuter.com>
To: "rebel builders" <rebel-builders@dcsol.com>
Sent: Sunday, May 08, 2005 7:23 PM
Subject: Amphib Suspension

Hi gang -- for any of you who are not happy with your urethane
suspension, like myself, I have some good news.

Today , for the first time, I can actually jump up and down in the
float, watch the wheel go up and down, properly.

I installed die springs in place of urethane. 3.5 in by 1.5 in by .75
in ID Green or extra heavy duty. I did the calculations and figured I
needed this spring. Thats 1750 lbs when fully compressed. I machined
the aluminum washers so they had a .75 boss on them to center the
springs and to get the correct preload-- about .200 in. The springs fit
right in place.They support the plane right at the top of the slot in a
static postion but when you are taxing or landing you can see and feel
them move much more than before.

Besides that it was a great day for flying period and the bay was
smooth.

bob fisher rebel 342 amphib









-----------------------------------------------------------------
List archives located at: https://www.dcsol.com/login
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------






-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Phil Stubley

Amphib Suspension

Post by Phil Stubley » Sat Feb 18, 2012 10:31 am

Hi Bob,

SUre didn't take you long to turn into a 'builder' even tho you didn't build
the plane or the floats to start.

Congratulations!!

Phil.

----- Original Message -----
From: "Bob Fisher" <rgfisher@zeuter.com>
To: "rebel builders" <rebel-builders@dcsol.com>
Sent: Sunday, May 08, 2005 7:23 PM
Subject: Amphib Suspension

Hi gang -- for any of you who are not happy with your urethane
suspension, like myself, I have some good news.

Today , for the first time, I can actually jump up and down in the
float, watch the wheel go up and down, properly.

I installed die springs in place of urethane. 3.5 in by 1.5 in by .75
in ID Green or extra heavy duty. I did the calculations and figured I
needed this spring. Thats 1750 lbs when fully compressed. I machined
the aluminum washers so they had a .75 boss on them to center the
springs and to get the correct preload-- about .200 in. The springs fit
right in place.They support the plane right at the top of the slot in a
static postion but when you are taxing or landing you can see and feel
them move much more than before.

Besides that it was a great day for flying period and the bay was
smooth.

bob fisher rebel 342 amphib









-----------------------------------------------------------------
List archives located at: https://www.dcsol.com/login
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------





-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Jesse Jenks

Amphib Suspension

Post by Jesse Jenks » Sat Feb 18, 2012 10:31 am

I don't know anything about how the amphib gear works, but could you put a
couple of the doughnuts in with the die springs? That way you would have
bottom-out protection as well.
Jesse
From: "Wayne G. O'Shea" <oifa@irishfield.on.ca>
Reply-To: <rebel-builders@dcsol.com>
To: <rebel-builders@dcsol.com>
Subject: Re: Amphib Suspension
Date: Sun, 8 May 2005 20:13:43 -0400

Sounds good Bob...not that I know anything about die springs.... LOL! Give
us an update after a month or two of "pounding" to see if things are
holding
up well.... with no detrimental effects. Turn that "slot" bolt once in
awhile to make sure it hasn't got bent. If you bottom the spring it won't
be
as forgiving as the urethane was.

Got my floats attached with spreader bars today and cross braced, ready for
installation to the airplane. Just have a logistics problem right now with
CYP's engine hanging from one of the block and tackles I need to lift the
airplane....and no CYP in site...nor can I get ahold of the (*%$%(!#( that
is painting it. Not a good sign and I don't need this horse rooster right
now!

Wayne

----- Original Message -----
From: "Bob Fisher" <rgfisher@zeuter.com>
To: "rebel builders" <rebel-builders@dcsol.com>
Sent: Sunday, May 08, 2005 7:23 PM
Subject: Amphib Suspension

Hi gang -- for any of you who are not happy with your urethane
suspension, like myself, I have some good news.

Today , for the first time, I can actually jump up and down in the
float, watch the wheel go up and down, properly.

I installed die springs in place of urethane. 3.5 in by 1.5 in by .75
in ID Green or extra heavy duty. I did the calculations and figured I
needed this spring. Thats 1750 lbs when fully compressed. I machined
the aluminum washers so they had a .75 boss on them to center the
springs and to get the correct preload-- about .200 in. The springs fit
right in place.They support the plane right at the top of the slot in a
static postion but when you are taxing or landing you can see and feel
them move much more than before.

Besides that it was a great day for flying period and the bay was
smooth.

bob fisher rebel 342 amphib









-----------------------------------------------------------------
List archives located at: https://www.dcsol.com/login
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------






-----------------------------------------------------------------
List archives located at: https://www.dcsol.com/login
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------





-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Bob Fisher

Amphib Suspension

Post by Bob Fisher » Sat Feb 18, 2012 10:31 am

hi jesse actually the first thing that bottoms, now , as before, is the
rod impacting with the lower part of the shock. the spring will not coil
bind by about .025"

they rest gets taken by the tire!

thanks fish


----- Original Message -----
From: "Jesse Jenks" <jessejenks@hotmail.com>
To: <rebel-builders@dcsol.com>
Sent: Monday, May 09, 2005 11:42 AM
Subject: Re: Amphib Suspension

I don't know anything about how the amphib gear works, but could you put a
couple of the doughnuts in with the die springs? That way you would have
bottom-out protection as well.
Jesse
From: "Wayne G. O'Shea" <oifa@irishfield.on.ca>
Reply-To: <rebel-builders@dcsol.com>
To: <rebel-builders@dcsol.com>
Subject: Re: Amphib Suspension
Date: Sun, 8 May 2005 20:13:43 -0400

Sounds good Bob...not that I know anything about die springs.... LOL!
Give
us an update after a month or two of "pounding" to see if things are
holding
up well.... with no detrimental effects. Turn that "slot" bolt once in
awhile to make sure it hasn't got bent. If you bottom the spring it won't
be
as forgiving as the urethane was.

Got my floats attached with spreader bars today and cross braced, ready
for
installation to the airplane. Just have a logistics problem right now
with
CYP's engine hanging from one of the block and tackles I need to lift the
airplane....and no CYP in site...nor can I get ahold of the (*%$%(!#(
that
is painting it. Not a good sign and I don't need this horse rooster right
now!

Wayne

----- Original Message -----
From: "Bob Fisher" <rgfisher@zeuter.com>
To: "rebel builders" <rebel-builders@dcsol.com>
Sent: Sunday, May 08, 2005 7:23 PM
Subject: Amphib Suspension

Hi gang -- for any of you who are not happy with your urethane
suspension, like myself, I have some good news.

Today , for the first time, I can actually jump up and down in the
float, watch the wheel go up and down, properly.

I installed die springs in place of urethane. 3.5 in by 1.5 in by .75
in ID Green or extra heavy duty. I did the calculations and figured
I
needed this spring. Thats 1750 lbs when fully compressed. I machined
the aluminum washers so they had a .75 boss on them to center the
springs and to get the correct preload-- about .200 in. The springs
fit
right in place.They support the plane right at the top of the slot in
a
static postion but when you are taxing or landing you can see and feel
them move much more than before.

Besides that it was a great day for flying period and the bay was
smooth.

bob fisher rebel 342 amphib









-----------------------------------------------------------------
List archives located at: https://www.dcsol.com/login
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------






-----------------------------------------------------------------
List archives located at: https://www.dcsol.com/login
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------





-----------------------------------------------------------------
List archives located at: https://www.dcsol.com/login
username "rebel" password "builder"
Subscription services located at:
https://www.dcsol.com/public/code/html-subscribe.htm
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------




-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------


Locked