Fuel dip tube for Piper Warrior?

In article ,
wrote:
Years ago we wanted a fuel dipstick for our Cherokee 140. One thing we
quickly found out is that dip indications are very sensitive to the angle of
the dipstick. Tilt it a bit and reading can be off by a few gallons,
especially when below half full.

It's operating on the same principle as the paint stirrer, so they both
need to be inserted consistently into the tank. I use the back edge of
the fuel filler neck as a reference. What the dip sticks DO suffer from
that a paint stirrer doesn't is "bounce". If you dip the tube in and slap
your thumb over it quick it will not have had time to fill. If you wait
a second it will overshoot and then bounce back down. It happens no matter
what the level of the tank but it's hard to see when the tank is half full.
I wait a full five count after dip before putting my thumb on the end.

--
Ben Jackson

http://www.ben.com/

Dave Butler wrote:
xyzzy wrote:

Dave Butler wrote:


Tried but you're over your hotmail storage limit. Clean out your
mailbox and repost.


That's odd. Shouldn't be. It *is* cleaned out. Did you remove the
letters S-H-I-R-T from my return address? Sorry for the trouble. Please
try again.

Dave
Remove SHIRT to reply directly.


Just tried again. Got this:

The user is over his storage limit. This mail has not
been sent to the recipient(s). Please remove this recipient to send the
message to other recipients.

(I elided your address but I'm pretty sure I followed the despamming
instructions correctly)

That happened while sending to you from hotmail. I'll try to send to
you from yahoo.

John Kunkel wrote:

"TTA Cherokee Driver" wrote in message
...

Is there a fuel dip tube available for the Piper Warrior II
(specifically, pa28-161)?


Here's the data I used to make my dipstick (wood paint stirring stick) for
24 gallon tanks:

do you really mean 25 gallon (24 usuable) tanks?


Thanks for the info.

4= 0"
5= 1"
10= 2 1/4"
15= 4"
20= 5 3/4"
24= 7 1/4"

On Sat, 24 Apr 2004 17:55:04 GMT, "John Kunkel"
wrote:


"TTA Cherokee Driver" wrote in message
...
Is there a fuel dip tube available for the Piper Warrior II
(specifically, pa28-161)?

Here's the data I used to make my dipstick (wood paint stirring stick) for
24 gallon tanks:

4= 0"
5= 1"
10= 2 1/4"
15= 4"
20= 5 3/4"
24= 7 1/4"


I use a smooth wooden dowel abut 1/4" diameter and fitted a soft
elastic tube over the the end to stop any chance of damaging the tank.
The top has a small string loop to ensure it's not dropped into the
tank (one of our group had the pleasure of removing and refitting a
tank after dropping a calibrated tube inside!). Calibration is with a
fine 'permanent' marker pen. Occasionally it needs re-marking but
works well.

Both tanks were calibrated by adding fuel, in increments, to our
PA28-161, Warrior II. There was a slight discrepancy between tanks but
not sufficient to cause any serious errors.

It's nice to see some similarity with the poster above. I use the
following which is from fuel added, measured then interpolated from
calibration in litres. It is not on a linear scale. Dipped with stick
approx. in middle of filler hole and on level ground:

Inches USG
============
8.0 24.7
7.0 23.5
6.0 21.8
5.0 19.4
TAB 17.5
4.0 16.6
3.0 13.3
2.0 9.3
1.0 6.3
0.0 4.3


David

Piper Warrior G-BHJO
Scotland, UK

E-mail (Remove Space after pilot): pilot

Any speculation on the corresponding data for Hershey-bar wing Cherokees?
We drive a 74 Archer. Same tank capacity as Warriors and 28-181 Archers,
but the airfoil is presumably different, and therefore the tank sections are
probably different. Anyone know if this is the case? Thanks.

--
Bob (Chief Pilot, White Knuckle Airways)

I don't have to like Bush and Cheney to love America
wrote in message
...
On Sat, 24 Apr 2004 17:55:04 GMT, "John Kunkel"
wrote:


"TTA Cherokee Driver" wrote in message
...
Is there a fuel dip tube available for the Piper Warrior II
(specifically, pa28-161)?

Here's the data I used to make my dipstick (wood paint stirring stick)
for
24 gallon tanks:

4= 0"
5= 1"
10= 2 1/4"
15= 4"
20= 5 3/4"
24= 7 1/4"


I use a smooth wooden dowel abut 1/4" diameter and fitted a soft
elastic tube over the the end to stop any chance of damaging the tank.
The top has a small string loop to ensure it's not dropped into the
tank (one of our group had the pleasure of removing and refitting a
tank after dropping a calibrated tube inside!). Calibration is with a
fine 'permanent' marker pen. Occasionally it needs re-marking but
works well.

Both tanks were calibrated by adding fuel, in increments, to our
PA28-161, Warrior II. There was a slight discrepancy between tanks but
not sufficient to cause any serious errors.

It's nice to see some similarity with the poster above. I use the
following which is from fuel added, measured then interpolated from
calibration in litres. It is not on a linear scale. Dipped with stick
approx. in middle of filler hole and on level ground:

Inches USG
============
8.0 24.7
7.0 23.5
6.0 21.8
5.0 19.4
TAB 17.5
4.0 16.6
3.0 13.3
2.0 9.3
1.0 6.3
0.0 4.3


David

Piper Warrior G-BHJO
Scotland, UK

E-mail (Remove Space after pilot): pilot

IIRC, the taper-wing Cherokees are only different outboard of the fuel tanks. The inboard chunk of the
wings have the same cross-section and thus the same fuel tank geometry. I'm not sure about the taperwing
Arrows, since I think they're 36 gal each or something, rather than 25.

I had the FBO fill up the tanks 5.0 gal at a time after I had to drain them for some reason. Dipped
with a 1/2" wooden dowel and then scratched a line at each position. Very easy, and accurate to within \pm 1/s
gallon. I'll contribute my measurements if interest merits.

-Cory

Bob Chilcoat wrote: : Any speculation on the corresponding data for Hershey-bar wing
Cherokees? : We drive a 74 Archer. Same tank capacity as Warriors and 28-181 Archers, : but the airfoil is
presumably different, and therefore the tank sections are : probably different. Anyone know if this is the
case? Thanks.

: --
: Bob (Chief Pilot, White Knuckle Airways)

: I don't have to like Bush and Cheney to love America
: wrote in message
: ...
: On Sat, 24 Apr 2004 17:55:04 GMT, "John Kunkel"
: wrote:
:
:
: "TTA Cherokee Driver" wrote in message
: ...
: Is there a fuel dip tube available for the Piper Warrior II
: (specifically, pa28-161)?
:
: Here's the data I used to make my dipstick (wood paint stirring stick)
: for
: 24 gallon tanks:
:
: 4= 0"
: 5= 1"
: 10= 2 1/4"
: 15= 4"
: 20= 5 3/4"
: 24= 7 1/4"
:
:
: I use a smooth wooden dowel abut 1/4" diameter and fitted a soft
: elastic tube over the the end to stop any chance of damaging the tank.
: The top has a small string loop to ensure it's not dropped into the
: tank (one of our group had the pleasure of removing and refitting a
: tank after dropping a calibrated tube inside!). Calibration is with a
: fine 'permanent' marker pen. Occasionally it needs re-marking but
: works well.
:
: Both tanks were calibrated by adding fuel, in increments, to our
: PA28-161, Warrior II. There was a slight discrepancy between tanks but
: not sufficient to cause any serious errors.
:
: It's nice to see some similarity with the poster above. I use the
: following which is from fuel added, measured then interpolated from
: calibration in litres. It is not on a linear scale. Dipped with stick
: approx. in middle of filler hole and on level ground:
:
: Inches USG
: ============
: 8.0 24.7
: 7.0 23.5
: 6.0 21.8
: 5.0 19.4
: TAB 17.5
: 4.0 16.6
: 3.0 13.3
: 2.0 9.3
: 1.0 6.3
: 0.0 4.3
:
:
: David
:
: Piper Warrior G-BHJO
: Scotland, UK
:
: E-mail (Remove Space after pilot): pilot



--
************************************************** ***********************
* The prime directive of Linux: *
* - learn what you don't know, *
* - teach what you do. *
* (Just my 20 USm$) *
************************************************** ***********************

I posted the original query and someone emailed me offline with the
following link:

Aircraft Spruce P/N 12-21255
http://www.aircraftspruce.com/catalo...fuelgauges.php

They only offer one tube for the whole PA-28 line so they seem to think
it's the same.

I ordered it and got it last week. So far it seems to be correct within
two gallons. I haven't drained tanks, but I did measure, predict how
much it would take to top the tanks, and then have them topped.


wrote:
IIRC, the taper-wing Cherokees are only different outboard of the fuel tanks. The inboard chunk of the
wings have the same cross-section and thus the same fuel tank geometry. I'm not sure about the taperwing
Arrows, since I think they're 36 gal each or something, rather than 25.

I had the FBO fill up the tanks 5.0 gal at a time after I had to drain them for some reason. Dipped
with a 1/2" wooden dowel and then scratched a line at each position. Very easy, and accurate to within \pm 1/s
gallon. I'll contribute my measurements if interest merits.

-Cory

Bob Chilcoat wrote: : Any speculation on the corresponding data for Hershey-bar wing
Cherokees? : We drive a 74 Archer. Same tank capacity as Warriors and 28-181 Archers, : but the airfoil is
presumably different, and therefore the tank sections are : probably different. Anyone know if this is the
case? Thanks.

: --
: Bob (Chief Pilot, White Knuckle Airways)

: I don't have to like Bush and Cheney to love America
: wrote in message
: ...
: On Sat, 24 Apr 2004 17:55:04 GMT, "John Kunkel"
: wrote:
:
:
: "TTA Cherokee Driver" wrote in message
: ...
: Is there a fuel dip tube available for the Piper Warrior II
: (specifically, pa28-161)?
:
: Here's the data I used to make my dipstick (wood paint stirring stick)
: for
: 24 gallon tanks:
:
: 4= 0"
: 5= 1"
: 10= 2 1/4"
: 15= 4"
: 20= 5 3/4"
: 24= 7 1/4"
:
:
: I use a smooth wooden dowel abut 1/4" diameter and fitted a soft
: elastic tube over the the end to stop any chance of damaging the tank.
: The top has a small string loop to ensure it's not dropped into the
: tank (one of our group had the pleasure of removing and refitting a
: tank after dropping a calibrated tube inside!). Calibration is with a
: fine 'permanent' marker pen. Occasionally it needs re-marking but
: works well.
:
: Both tanks were calibrated by adding fuel, in increments, to our
: PA28-161, Warrior II. There was a slight discrepancy between tanks but
: not sufficient to cause any serious errors.
:
: It's nice to see some similarity with the poster above. I use the
: following which is from fuel added, measured then interpolated from
: calibration in litres. It is not on a linear scale. Dipped with stick
: approx. in middle of filler hole and on level ground:
:
: Inches USG
: ============
: 8.0 24.7
: 7.0 23.5
: 6.0 21.8
: 5.0 19.4
: TAB 17.5
: 4.0 16.6
: 3.0 13.3
: 2.0 9.3
: 1.0 6.3
: 0.0 4.3
:
:
: David
:
: Piper Warrior G-BHJO
: Scotland, UK
:
: E-mail (Remove Space after pilot): pilot