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06-21-2017, 12:53 AM
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Join Date: Mar 2008
Location: Ramona, CA
Posts: 2,370
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Quote:
Originally Posted by BruceP
So, do you have a Skyview, and if so, do you remember how you configured your flaps?
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Yes, I have a Skyview EFIS. The VP-X configurator is what is used to set the range and the various stop positions for the flaps. You can also reverse the polarity of the flap motor voltage, so no worries about which wire is up/down.
I think the only thing required on the Skyview is to go into the EMS configuration and select that the flap position is coming from the VP-X data. Then configure a widget on the screen layout editor display to be tied to the flap position input. I have a different widget for the various screen partition sizes. On the full EMS screen, it is a quarter circle shape with a flap like pointer and on the narrow screen I just have degree numbers.
I'm pretty sure the set up is well documented in the Skyview Installation Guide.
See page 13-5.
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06-22-2017, 11:05 PM
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Join Date: Feb 2007
Location: Bakersfield, CA
Posts: 214
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Quote:
Originally Posted by bruceh
Yes, I have a Skyview EFIS. The VP-X configurator is what is used to set the range and the various stop positions for the flaps. You can also reverse the polarity of the flap motor voltage, so no worries about which wire is up/down.
I think the only thing required on the Skyview is to go into the EMS configuration and select that the flap position is coming from the VP-X data. Then configure a widget on the screen layout editor display to be tied to the flap position input. I have a different widget for the various screen partition sizes. On the full EMS screen, it is a quarter circle shape with a flap like pointer and on the narrow screen I just have degree numbers.
I'm pretty sure the set up is well documented in the Skyview Installation Guide.
See page 13-5.
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Ok, thanks! Maybe I'll give it another try.
__________________
Bruce Peters
Bakersfield, CA
RV-9A, Flying 11/21/15
VAF#1145
Donation up to date 08/20
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06-23-2017, 05:30 AM
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Join Date: Sep 2007
Location: Central IL
Posts: 5,516
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Quote:
Originally Posted by bruceh
I used the Ray Allen POS-12 sensor and mounted it like this:
Flaps up position - sensor arm fully out:

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For those choosing to use the sensor, the angle to the vertical is 30 degrees. I did a drawing to determine the ideal.
__________________
Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
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06-23-2017, 08:45 AM
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Join Date: Oct 2007
Location: Sacramento, CA
Posts: 3,351
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Quote:
Originally Posted by BillL
For those choosing to use the sensor, the angle to the vertical is 30 degrees. I did a drawing to determine the ideal.
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Nice set up here. Mine is similar only the sensor bracket has a pivot point, though from fully up to fully down there is very little movement. It has worked flawlessly with no maintenance required in 600+ hours. Each annual I look at for any sign of issues as I inspect the flap motor and attachment points.
__________________
Mehrdad
N825SM RV7A - IO360M1B - SOLD
N825MS RV14A - IO390 - Flying
Dues paid
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06-23-2017, 07:03 PM
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Join Date: Nov 2008
Location: La Sarre, Qu?bec, Canada
Posts: 90
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Flap position sensor
I put my sensor on the side of the fuselage instead of the center column. Like that, you can remove center section without remove the sensor. Work great and never had any trouble. On the pics, the link are disconnected because I work on it when I take the pics.....
http://www.mykitlog.com/users/displa...=205258&row=11
__________________
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Martin "Closterman" Rousseau
www.mraerodesign.com
Piper Cherokee C-FEYI (sold)
RV-7A C-GMYL Status : FLYING with perpetual RV Grin!!!
RV-9A Status : Tail & Wing 90% Fuselage: 10%
Hatz Classic : building wings (on hold)
http://www.mykitlog.com/Closterman/
Donated to VAF (12-2017)
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06-28-2017, 11:41 AM
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Join Date: Aug 2014
Location: Clearwater, FL / KZPH
Posts: 158
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I have a question, why doesn't anyone use the Motion Systems actuator with built in feedback?
Motion Systems makes the exact same series actuator for every RV model WITH built in feedback. No need to mount up extra brackets and sensors. It's all done for you on the inside with a FAR superior pot than what's inside the POS-12.
It wires up just the same as the actuator with the external POS-12. Just seems like more work and more to go wrong with all that extra linkage as Walt pointed out.
If you really want flap position why not use the same motor with all this external stuff built in?
What if it breaks you ask? It'll last a lot longer and give you a much cleaner signal than the POS-12, trust me. If you put both the built in pot inside the actuator and the POS-12 pot on a scope you can visually see how superior the pot is inside the actuator compared to the POS-12.
I built my own digital flap controller and use the motor with built in feedback. No other hardware and brackets to mount.
No quite as simple as looking over your shoulder but a lot easier than mounting up all that ancillary stuff just to get flap position.
As stated earlier, my post is simply an expression of my OPINION and should be taken for what it's worth.
Last edited by Shawn25854 : 06-28-2017 at 12:19 PM.
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06-28-2017, 11:59 AM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,687
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Sounds like a much better solution, you got a PN for that motor Shawn?
__________________
Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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06-28-2017, 12:48 PM
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Join Date: Aug 2014
Location: Clearwater, FL / KZPH
Posts: 158
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Hi Walt,
It's very easy, just add "-POT" to the end of your current 85615 series part number for your RV model specific actuator. Not all RV models use the same actuator so your mileage will vary.
Note: as the stroke length on the actuators increases the center to center mounting distance on the holes MAY increase just a little. This means that the minimum retracted centerline distance might be slightly longer than the non feedback version. This is for the cover on the feedback pot. This is more noticeable only on the longer stroke models.
You can check this on the Motion Systems website.
Shawn
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01-11-2019, 10:31 AM
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Join Date: Dec 2009
Location: Montreal
Posts: 1,456
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Quote:
Originally Posted by Walt
So when you have an electronic flight control, rigging now becomes critical and surface position is now dependant on an "inexpensive" position sensor with somewhat questionalble repeatability. .
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I agree with that, which is why I am only using the sensor for a cockpit indication. If it breaks I can look over the side to verify. The motion of the flap motor will be completely independent of the sensor. It is a bell and whistle that is not strictly required, but it is easy to do and cheap and my EFIS has the capability so for the sensor cost and $5 of wire I will have the flap and pitch trim displayed.
__________________
Scott Black
Old school simple VFR RV 4, O-320, wood prop, MGL iEfis Lite
VAF dues 2020
Instagram @sblack2154
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01-11-2019, 04:32 PM
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Join Date: Jun 2014
Location: Seattle (Edmonds) and Iowa
Posts: 200
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Not having done it, is it easy to see the flaps at night?
__________________
Dave Grimmer
RV8 N46LG for Lynda
Flying
Edmonds WA
paid 2019
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