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  #1  
Old 04-28-2017, 10:01 AM
DMFenster DMFenster is offline
 
Join Date: Jan 2012
Location: Woodbridge, VA
Posts: 90
Default Flap Limit switch

Searched the forum and most links are broken. I want to put in flap limit switches using the limit switches and diodes. Can someone explain how to wire this? Email me a schematic, perhaps?

Thanks,
Dave
Woodbridge, VA
RV-8
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  #2  
Old 04-28-2017, 10:54 AM
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Raymo Raymo is offline
 
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Default

Check out the PHAviation products for this task. They are very helpful with the any questions you might have as well.

If you already have a relay, you would put the limit switch inline with flap up switch such that it opens the connection to the relay, which is typically a ground.
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  #3  
Old 04-28-2017, 12:57 PM
Pdtofly Pdtofly is offline
 
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Location: Reno, NV
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Default Better flap motor

Dave forget adding a separate limit switch, change the flap motor assembly.

Get one of these.

http://www.aeicomp.com/Detail.asp?Pr...2IP65+Rated%22

They are built and sealed better than what Vans puts in their kits. They have both up and down limit switches built in and they have a variable pot also for flap position for your EFIS, and they are only $124.

They also come in different throws lengths if you want. Check it out.

Brian
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  #4  
Old 05-09-2017, 08:08 PM
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MCA MCA is offline
 
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Take a look at the Vertical Power VP-X. All of that is built in. www.verticalpower.com
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  #5  
Old 06-28-2017, 12:58 PM
Shawn25854 Shawn25854 is offline
 
Join Date: Aug 2014
Location: Clearwater, FL / KZPH
Posts: 158
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Brian is right, forget all those actuators without built in limit switches and feedback. Simplify your entire install with an actuator with built in limit switches to stop the motor from running on and feedback position for your EFIS display.

If you dont have the VP-X system this is the next best way.

They work great and solve many, many issues.
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  #6  
Old 06-28-2017, 02:19 PM
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Carl Froehlich Carl Froehlich is offline
 
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This is as dirt simple as it gets - and works perfectly.
http://vansaircraft.com/cgi-bin/stor...al&product=fps

I've installed this on an 8A, a 10 and a 14A. It will go into the new 8 project as well.

Carl
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  #7  
Old 06-30-2017, 03:23 PM
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RV7A Flyer RV7A Flyer is offline
 
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Location: US
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Quote:
Originally Posted by Carl Froehlich View Post
This is as dirt simple as it gets - and works perfectly.
http://vansaircraft.com/cgi-bin/stor...al&product=fps

I've installed this on an 8A, a 10 and a 14A. It will go into the new 8 project as well.

Carl
This looks interesting. Is the switch (ON)-OFF-(ON), by any chance? If so, that will work with my current installation (I'm loathe to change anything at this point).

Does it have a position signal that can feed into an EFIS? Somebody have the schematic available?
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  #8  
Old 06-30-2017, 04:17 PM
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vlittle vlittle is offline
 
Join Date: Jan 2005
Location: Victoria, Canada
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Here's what you asked for :http://www.vx-aviation.com/sprocket/...atics/TRIM.pdf

Complete schematic: http://www.vx-aviation.com/sprocket/...ec/schematics/

Vern
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  #9  
Old 07-01-2017, 12:02 PM
Shawn25854 Shawn25854 is offline
 
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Location: Clearwater, FL / KZPH
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It's actually even more simple using an actuator with the feedback built in. That setup, although may work just fine, uses external feedback that you have to mount on your existing actuator and get everything lined up properly so you get the feedback travel you need.

Why not use an actuator that has feedback AND limit switches built in?

The controller itself is good because of the "automatic" flaps. I built my own version that uses 4 LED lighted pushbuttons for each flap position rather than a toggle. I have at a quick glance visual indication of the flap position or movement of the flaps. With the toggle you have to look over your shoulder or at the tiny Ray Allen LED indicator to see where they are. I simply push UP, 10°, 20° or 30° and they go there. I glance at the switches and the 10° is lit up and I know they are at 10°. I can go to any position with one touch.

I know everyone has their preference and there really is no wrong way but keeping things simple in a complex flying machine has it's advantages. I'd rather focus on flying.

Last edited by Shawn25854 : 07-01-2017 at 12:05 PM.
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  #10  
Old 08-07-2017, 01:12 PM
tturner tturner is online now
 
Join Date: Jul 2008
Location: Fayetteville, GA
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Default

The replacement actuator mentioned above I believe is a TOP-A6104TP 4" Stroke. I checked the one I have from Van's for my RV-8 has a travel of 5". Is the 4" travel enough? Also I can't tell if this one has internet threads on one end to screw in a rod end to allow adjustment. What modifications did you have to do to adapt it?
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