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07-18-2019, 12:11 AM
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Join Date: Nov 2014
Location: In the center of France
Posts: 90
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VPX diagram
Hi Brantel,
Here is a little diagram of VPX connections. The switches are only simple contact et they don't carry power.
So I don't see how ou can extend AND retract the cowl flap with only 1 port.
Please, can you explain how you connect it ?
In advance thank you
Sylvain

__________________
Location: France
RV7 QB (F-PSED), Tip Up, Aerosport IO-375, James Cowl, WW 200RV, Dynon Skyview, VP-X sport, Day VFR,
Flying...
Phase 2
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07-18-2019, 04:31 AM
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Join Date: Mar 2006
Location: Newport, TN
Posts: 7,496
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Quote:
Originally Posted by Sylvainsting
Hi Brantel,
Here is a little diagram of VPX connections. The switches are only simple contact et they don't carry power.
So I don't see how ou can extend AND retract the cowl flap with only 1 port.
Please, can you explain how you connect it ?
In advance thank you
Sylvain

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I misunderstood your post. I only fed the DPDT switch (similar to a flap or trim switch) with power from one of the VPX circuits. I do not ?control? the cowl flaps with it. Again, sorry for the confusion!
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07-18-2019, 07:31 AM
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Join Date: Jun 2005
Location: Milwaukee, WI area
Posts: 2,967
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Yes the way Brian has the switch wired works...and yes I was referring to the flap circuits being the only way to "control" a motor.
Cheers,
Chad
__________________
Chad Jensen
Astronics AES, Vertical Power
RV-7, 5 yr build, flew it 68 hours, sold it, miss it.
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07-18-2019, 10:11 AM
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Join Date: Nov 2014
Location: In the center of France
Posts: 90
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port protected ?
Hi,
So, if I understood correctly, the diagram in that case should be like that ?
A question : is the VPX port protected with the internal fuse ? and how to set it in the configuration ; always open ?
in advance thank you
Sylvain

__________________
Location: France
RV7 QB (F-PSED), Tip Up, Aerosport IO-375, James Cowl, WW 200RV, Dynon Skyview, VP-X sport, Day VFR,
Flying...
Phase 2
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07-19-2019, 07:23 AM
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Join Date: Jun 2005
Location: Milwaukee, WI area
Posts: 2,967
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Yes, that is the way to wire an appropriately rated switch to control output power.
Yes, the VP-X will protect the wiring. Set the breaker value to the appropriate level for the current expected. Set the pin to always on.
__________________
Chad Jensen
Astronics AES, Vertical Power
RV-7, 5 yr build, flew it 68 hours, sold it, miss it.
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07-19-2019, 08:37 AM
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Join Date: Nov 2014
Location: In the center of France
Posts: 90
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Thank You
Thank you very much Chad, its help a lot !
Cheers
Sylvain
__________________
Location: France
RV7 QB (F-PSED), Tip Up, Aerosport IO-375, James Cowl, WW 200RV, Dynon Skyview, VP-X sport, Day VFR,
Flying...
Phase 2
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07-19-2019, 10:09 AM
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Join Date: Jan 2014
Location: CO
Posts: 19
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Question On ASA Cowl Flap Actuator and VPX
The VPX installation manual on Page 16, Paragraph 4.12 states to not use the VPX to power linear actuator motors that have a possibility of binding at the end of their travel.
I also am planning to use an ASA cowl flap and VPX, and have been wondering about whether this is an issue, especially with a very low current device like the ASA actuator. Is the ASA cowl flap actuator the type the installation manual is referring to?
I seem to recall a thread a while back where a binding cowl flap actuator caused a problem in a VPX system.
What is the thought on this?
__________________
jb
RV-7
QB Fuse in progress
Wings and tail done
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09-16-2019, 07:40 AM
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Join Date: Nov 2014
Location: In the center of France
Posts: 90
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cowl flaps position for cutting
Hello,
I am going to install my cowl flaps and I don't know exactly where to cut my cowl. There is no indication on the A.S.A sheet. I read somewhere 3 inches from the rear of the cowl.
Is somebody to help me ?
In advance thank you
Sylvain
__________________
Location: France
RV7 QB (F-PSED), Tip Up, Aerosport IO-375, James Cowl, WW 200RV, Dynon Skyview, VP-X sport, Day VFR,
Flying...
Phase 2
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09-16-2019, 09:52 AM
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Join Date: Sep 2010
Location: Redlands, Ca.
Posts: 1,458
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Quote:
Originally Posted by Sylvainsting
Hello,
I am going to install my cowl flaps and I don't know exactly where to cut my cowl. There is no indication on the A.S.A sheet. I read somewhere 3 inches from the rear of the cowl.
Is somebody to help me ?
In advance thank you
Sylvain
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Here are a few photos that will help clarify the location for your Easy Cool
flaps. If you can give me a call I am certain I can save you a lot of time
and work on your installation. Thanks, Allan...
.

__________________
Allan Nimmo
AntiSplatAero.com
Innovative Aircraft Safety
Products, Tools & ServicesInfo@AntiSplatAero.com Southern California (KREI)
RV-9A / Edge-540 
(909) 824-1020
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09-16-2019, 01:09 PM
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Join Date: Nov 2014
Location: In the center of France
Posts: 90
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Thank you Alan
Hello Alan,
Thank you for your message. My english is not very good, so a call should be difficult for me. Is it possible you give me the distance between the rear of the cowl and the cut line. Is it 2 or 3 inches ?
in advance thank you
Sylvain
__________________
Location: France
RV7 QB (F-PSED), Tip Up, Aerosport IO-375, James Cowl, WW 200RV, Dynon Skyview, VP-X sport, Day VFR,
Flying...
Phase 2
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