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l.morris(at)tx.rr.com
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 Posted: Sun May 20, 2007 11:13 am Post subject: pitot tube |
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You mentioned you have a pitot tube from Spruce...pn 15135.I have the pitot/static tube from Spruce which is similar but has the double tube.You said you glued a piece of wood to the capstrip to mount the flange.Did you drill thru the capstrip to run the tube thru or to run the screws thru or did you mount the entire assembly to the piece of wood you glued to the capstrip?Did you mount it so the flange is on the inside or outside of the wing?Did you bend the tube back and if so did you have any problems with that?/also,did you use a wood glue or epoxy to attach the wood to the capstrip?Thanks for all your help...Leon....Leon Morris/Classic4 Sptr/1994/50%/Flower Mound,TX
---- Lynn Matteson <lynnmatt(at)jps.net> wrote:
| Quote: |
So that glacier is finally melting, eh?
Seriously, I have always felt that the dealer (or Sensenich) might
have over-propped the engine. In cruise, it seems to be about 2-300
rpm short of redline (3300 rpm), and I don't know whether this is a
good thing or not. I know I'm never gonna over-rev it, as long as I
don't head downhill, but I'd like to see it pull a little better on
the climbs. As my background has always been race cars, maybe I just
don't know the parameters surrounding rpms desired in aircraft
engines. Strike that...* KNOW * I don't know what I should know about
props, rpm, etc.
Lynn Matteson
Grass Lake, Michigan
Kitfox IV Speedster w/Jabiru 2200
flying w/275+ hrs
do not archive
On May 19, 2007, at 10:57 PM, Noel Loveys wrote:
> Under powered or over propped ... Doesn't sound like your Jab....
>
> Perhaps you just have good brakes.... that's my best bet.
>
> No brakes on my floats, which should be getting wet any day now!
>
> Noel Loveys, RPP, AME intern
> Campbellton, Newfoundland,
> Canada
> Kitfox Mod III-A, 582, B box, Ivo IFA
> Aerocet 1100s
> noelloveys(at)yahoo.ca
>
>
> Do not archive
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Lynn Matteson
Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan
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| Posted: Sun May 20, 2007 1:22 pm Post subject: pitot tube |
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Leon-
I glued a piece of wood to the capstrip and to the rib. I cut the
piece I used so it fit right up under the capstrip, and extended out
about 3/4" beyond the capstrip. I cut a shoulder on this piece, so
that where it comes out from under the capstrip, it goes up flush
with the edge of the capstrip, and then goes out laterally from
there, being flush with the top of the capstrip. The piece of wood is
semi-round when you look down on it, and thus provides a nice look
when covered with fabric. Because the flange of the p/n 15135 pitot
tube is round, and 1-1/2" in diameter, the 3/4" that goes out beyond
the edge of the 1" wide capstrip provides an area that is 1-3/4" wide
to mount the 1-1/2" flange...still with me? It's actually a lot
simpler than I'm making it sound. Once the whole block of wood is
glued in...can't recall if I used epoxy glue or wood glue, but I did
epoxy varnish the whole shebang when it was all done...after the
flange was test mounted, that is. The glue holds the block of wood in
place, and the screws pull up on the block, against the capstrip, so
really the type of glue is not all that important. Yes, I drilled
through the capstrip and the block of wood right alongside of the
rib, so that the inside end of the pitot tube could lay flat to the
rib. I probably drilled the hole oversize or gouged out the path
where the tube must be inserted through it, to clear the bend in the
tubing. I also put an inspection ring on the covering so that I could
access the pitot tube-to-flex hose connection if need be later on. I
might have even put another block of wood on the other side of the
rib, so the screws (4 of them in all) would have something to bite
into other than the 1/8" capstrip, but I can't recall, and it is not
apparent on that side like it is on the side where the "round" block
is...apparent through the covering that is. Once you start looking at
it, it will make sense what you have to do.
Flange goes on the outside...you must be able to access it if damage
ever occurs. No bending was necessary on the single tube. I have a
static port on the fuselage...two of 'em, actually.
Lynn Matteson
Grass Lake, Michigan
Kitfox IV Speedster w/Jabiru 2200
flying w/293+ hrs
On May 20, 2007, at 3:13 PM, <l.morris(at)tx.rr.com>
<l.morris(at)tx.rr.com> wrote:
| Quote: |
You mentioned you have a pitot tube from Spruce...pn 15135.I have
the pitot/static tube from Spruce which is similar but has the
double tube.You said you glued a piece of wood to the capstrip to
mount the flange.Did you drill thru the capstrip to run the tube
thru or to run the screws thru or did you mount the entire assembly
to the piece of wood you glued to the capstrip?Did you mount it so
the flange is on the inside or outside of the wing?Did you bend the
tube back and if so did you have any problems with that?/also,did
you use a wood glue or epoxy to attach the wood to the capstrip?
Thanks for all your help...Leon....Leon Morris/Classic4 Sptr/
1994/50%/Flower Mound,TX
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_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM |
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