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Rectangular LRI Indicator anyone?

 
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moorecomp(at)yahoo.com
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PostPosted: Wed Jun 14, 2006 9:14 am    Post subject: Rectangular LRI Indicator anyone? Reply with quote

All,

Talk recently on the list re LRI's. Some have
previously made comments about the odd size of the
Dwyer minihelic gauge that is specified in the plans
at ch601.org. Out of curiosity, I found a rectangular
0-2" differential pressure gauge. The model I found
that would be best suited for use is the DG87841-1C in
the 500Pa range (500Pa = 2" wc). It is more expensive
than the Dwyer gauge, but some may want/prefer the
rectangle shape. The price quote I received from the
distributor was $96.50 ea. It is available in vertical
or horizontal mounting. The DG87841 is vertical and
the DG87641 is horizontal. There is also a nearly
identical unit available from Manostar, but it was
quoted at $120. I am trying the picture attachment
feature so you can see my iteration of its use.

Contact info: http://fukuda.online411.net/contact.html

Best regards,

Craig Moore A&P
701 builder wannabe

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DG87_Dimensions.JPG
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Vertical_LRI.JPG
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davids601xl(at)yahoo.com
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PostPosted: Fri Jun 16, 2006 9:35 am    Post subject: Rectangular LRI Indicator anyone? Reply with quote

That rectangular guage looks like it would work great
Craig. I myself wanted to have the LRI above the
Instrument panel so I could watch it AND the view over
the nose. I am using a Dwyer magnihelic (4 inch face)
and recessing the bottom half into the sheet over the
IP. I got one brand new in the box off ebay for $5.
(hard to beat) I am also going to lean it away from
the pilot so some degree and make a fairing to cover
the top of it. It will be large and as close to the
horizon as I can get any instrument.

That is my rationale. If I were going to install in
the IP then the rectangular guage looks great!
David

--- Craig Moore <moorecomp(at)yahoo.com> wrote:

Quote:
All,

Talk recently on the list re LRI's. Some have
previously made comments about the odd size of the
Dwyer minihelic gauge that is specified in the plans
at ch601.org. Out of curiosity, I found a
______________________________

David Barth
601 XL Plansbuilder 15% done?
Working on Wings
www.ch601.org

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