Lift Reserve Indicator

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Lift Reserve Indicator

Postby Darick » Mon Jan 06, 2014 1:32 pm

I'm strongly considering a lift reserve indicator from Value Engineering. It's basically a pressure differential gage with an appropriate face and an outside probe. It appears to be a very economical set-up, especially when compared to other similar products. Would anybody using this particular model, recommend the plastic or aluminum probe?
Thanks for your input.
Darick
Sonex #1646
TD, CS, AeroVee
Darick Gundy
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N417DG
Taildragger, Aerovee, center stick, Prince P-Tip Prop
MGL E1, F2, V6 radio, Sandia Xponder, Reserve lift indicator (AOA), iFly 520
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Re: Lift Reserve Indicator

Postby kmacht » Mon Jan 06, 2014 1:46 pm

Do you have a link? I tried a quick search for value engineering and didn't come up with anything. I plan on replacing a backup airspeed indicator I have in my panel with a LRI or AOA indicator after I do a number of flights in the plane and am comfortable that the primary airspeed indicator is working and accurate. If you haven't seen it already take a look at Jeff Schutz website. He has some details on building your own LRI in there. If you want to go analog the gage is only about $30 and the probe is pretty simple to make. I never understood why some companies are selling the electronic gages for $1000+. I have a friend helping me put one together with a $15 pressure differntial sensor hooked to an arduino.

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Re: Lift Reserve Indicator

Postby Darick » Mon Jan 06, 2014 2:28 pm

https://sites.google.com/site/lrikit/
I'm not sure how I ever got to this site. The gentleman's name is Kelly and you can email him at Kelly@meiste.com. I could probably make up my own with some trial and error engineering, but I'd rather not re-invent something already available for what I think is a reasonable price.
Just my .02.
Darick
Darick Gundy
Sonex #1646
N417DG
Taildragger, Aerovee, center stick, Prince P-Tip Prop
MGL E1, F2, V6 radio, Sandia Xponder, Reserve lift indicator (AOA), iFly 520
First flight! 10/21/2017
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Re: Lift Reserve Indicator

Postby radfordc » Mon Jan 06, 2014 3:17 pm

Dale Williams likes his. You can see it work here: http://youtu.be/WjA7JDJVKeQ

Here is an article on building it: http://sonexfoundation.com/uploads/Culv ... icator.pdf
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Re: Lift Reserve Indicator

Postby fastj22 » Mon Jan 06, 2014 9:14 pm

I purchased and installed this since my MGL xTremes don't support AOA.
http://www.liftreserve.com
$450.
the website is pretty primitive but the product is top notch.
I now use it exclusively for my approaches.

John Gillis
SEL Private, Comm Glider, Tow pilot (Pawnee Driver)
Waiex N116YX, Jabiru 3300, Tail dragger,
First flight, 3/16/2013. 403 hours and climbing.
Home: CO15. KOSH x 5
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Lift Reserve Indicator

Postby Sonex1517 » Mon Jan 06, 2014 9:46 pm

I wrote an article on this for the Sonex Builders and Pilots Foundation

http://sonexfoundation.com/Lift_Reserve_Indicator.html

May want to read through it....

Robbie

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Re: Lift Reserve Indicator

Postby rizzz » Mon Jan 06, 2014 9:47 pm

This builder installed the same system:
http://www.kansasflying.com/sonex1017/s ... nglog.html

There are quite detailed pictures on his website of the installation.
Michael
Sonex #145 from scratch (mostly)
Taildragger, 2.4L VW engine, AeroInjector, Prince 54x48 P-Tip
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Lift Reserve Indicator

Postby Sonex1517 » Mon Jan 06, 2014 9:49 pm

Sorry - the direct link is http://sonexfoundation.com/uploads/Culver_Lift_Reserve_Indicator.pdf


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Robbie Culver
Sonex 1517
Aero Estates (T25)
First flight 10/10/2015
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Jabiru 3300 Gen 4
Prince P Tip
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Re: Lift Reserve Indicator

Postby daleandee » Tue Jan 07, 2014 12:22 am

*
Last edited by daleandee on Wed Aug 23, 2017 5:54 pm, edited 1 time in total.
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Re: Lift Reserve Indicator

Postby dcstrng » Tue Jan 07, 2014 9:36 am

Darick wrote:https://sites.google.com/site/lrikit/ The gentleman's name is Kelly and you can email him at Kelly@meiste.com... I think is a reasonable price...



Yep, ditto... His website is nothing much to brag about, so I wrote him in the blind and he responded within an hour or so – seemed like a good guy, although I’m only basing that on exchange of emails. Mine hasn’t yet arrived (only ordered about a week ago), but shot a few emails back and forth (choice of aluminum or nylon probe – I went with aluminum, but I think he makes these to order), so we’ll see…
-- Larry
Sonex Plans #1621
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