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Flap relay

 
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roughleg(at)gmail.com
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PostPosted: Wed Dec 11, 2019 8:03 pm    Post subject: Flap relay Reply with quote

Does anyone have experience with the Aircraft Extras relay board? I am considering two flap switches on my panel (Zenith STOL 750), one for pilot and one for instructor, which would require a relay deck to interface to the flap motor. The motor has a full-stall draw of 4A, so it is way beyond the 1A rating of the Ray Allen relay deck. The Aircraft Extras unit is rated at 10A so that should not be a problem, but I was wondering if they have a good track record for reliability, ease of installation, etc.

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nuckolls.bob(at)aeroelect
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PostPosted: Wed Dec 11, 2019 8:34 pm    Post subject: Flap relay Reply with quote

At 12:49 PM 12/11/2019, you wrote:
Quote:
Does anyone have experience with the Aircraft Extras relay board? I am considering two flap switches on my panel (Zenith STOL 750), one for pilot and one for instructor, which would require a relay deck to interface to the flap motor. The motor has a full-stall draw of 4A, so it is way beyond the 1A rating of the Ray Allen relay deck. The Aircraft Extras unit is rated at 10A so that should not be a problem, but I was wondering if they have a good track record for reliability, ease of installation, etc.


Buy a couple of these:

https://tinyurl.com/u2yld6d

wire them like this:

http://www.aeroelectric.com/PPS/Flight/Flaps/Flaps.pdf

Inexpensive, works good, lasts a long time



Bob . . .


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roughleg(at)gmail.com
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PostPosted: Wed Dec 11, 2019 10:17 pm    Post subject: Flap relay Reply with quote

That looks great, Bob. I guess I could use these for my trim system too, less $ than the RAC relay deck..
I see that the 12V version of the unit you linked to is out of stock - should I look for any 5-pin automotive relay with similar specs, or is there something special about this one?
I tweaked your wiring diagram for my 2-switch setup:
[img]cid:ii_k42bvaxx0[/img]
On Wed, Dec 11, 2019 at 9:39 PM Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:

Quote:
At 12:49 PM 12/11/2019, you wrote:
Quote:
Does anyone have experience with the Aircraft Extras relay board? I am considering two flap switches on my panel (Zenith STOL 750), one for pilot and one for instructor, which would require a relay deck to interface to the flap motor. The motor has a full-stall draw of 4A, so it is way beyond the 1A rating of the Ray Allen relay deck. The Aircraft Extras unit is rated at 10A so that should not be a problem, but I was wondering if they have a good track record for reliability, ease of installation, etc.


  Buy a couple of these:

https://tinyurl.com/u2yld6d

 wire them like this:

http://www.aeroelectric.com/PPS/Flight/Flaps/Flaps.pdf

 Inexpensive, works good, lasts a long time



  Bob . . .


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2-switch_flap_wiring.jpg
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bob.verwey(at)gmail.com
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PostPosted: Wed Dec 11, 2019 11:14 pm    Post subject: Flap relay Reply with quote

Pat does this allow for "ïnstructor" override?
Best...Bob Verwey

082 331 2727
[img]https://docs.google.com/uc?export=download&id=0B5d7rgAInTuTUUZsUjY4QmJsdVU&revid=0B5d7rgAInTuTdDJDaXRFZVh3b3lMa3FWL0s3MFdzc01YRlNvPQ[/img]

On Thu, 12 Dec 2019 at 08:23, Pat Little <roughleg(at)gmail.com (roughleg(at)gmail.com)> wrote:

Quote:
That looks great, Bob. I guess I could use these for my trim system too, less $ than the RAC relay deck..
I see that the 12V version of the unit you linked to is out of stock - should I look for any 5-pin automotive relay with similar specs, or is there something special about this one?
I tweaked your wiring diagram for my 2-switch setup:
[img]cid:ii_k42bvaxx0[/img]
On Wed, Dec 11, 2019 at 9:39 PM Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:

Quote:
At 12:49 PM 12/11/2019, you wrote:
Quote:
Does anyone have experience with the Aircraft Extras relay board? I am considering two flap switches on my panel (Zenith STOL 750), one for pilot and one for instructor, which would require a relay deck to interface to the flap motor. The motor has a full-stall draw of 4A, so it is way beyond the 1A rating of the Ray Allen relay deck. The Aircraft Extras unit is rated at 10A so that should not be a problem, but I was wondering if they have a good track record for reliability, ease of installation, etc.


  Buy a couple of these:

https://tinyurl.com/u2yld6d

 wire them like this:

http://www.aeroelectric.com/PPS/Flight/Flaps/Flaps.pdf

 Inexpensive, works good, lasts a long time



  Bob . . .




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2-switch_flap_wiring.jpg
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nuckolls.bob(at)aeroelect
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PostPosted: Thu Dec 12, 2019 4:39 am    Post subject: Flap relay Reply with quote

At 01:13 AM 12/12/2019, you wrote:
Quote:
Pat does this allow for "ïnstructor" override?

Yes . . . if BOTH switches are operated
but in opposing directions . . . the motor
simply stops.

Quote:
On Thu, 12 Dec 2019 at 08:23, Pat Little <roughleg(at)gmail.com (roughleg(at)gmail.com)> wrote:
That looks great, Bob. I guess I could use these for my trim system too, less $ than the RAC relay deck..
I see that the 12V version of the unit you linked to is out of stock - should I look for any 5-pin automotive relay with similar specs, or is there something special about this one?
I tweaked your wiring diagram for my 2-switch setup:

Check the corrected link for the intended
wiring diagram.

Nothing 'special' . . . any of the 12v, 5-pin
devices will do nicely. Some are offered with
a mating plug and wire harness which has some
advantages but sorta complicates diode installation.

But still doable.

Going right to the relay pins with fast-on terminals
lets you mount the diodes right at the relays . . .


Bob . . .


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nuckolls.bob(at)aeroelect
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PostPosted: Thu Dec 12, 2019 4:47 am    Post subject: Flap relay Reply with quote

At 01:13 AM 12/12/2019, you wrote:
Quote:
Pat does this allow for "ïnstructor" override?

Yes . . . if BOTH switches are operated
but in opposing directions . . . the motor
simply stops.

Quote:
On Thu, 12 Dec 2019 at 08:23, Pat Little <roughleg(at)gmail.com (roughleg(at)gmail.com)> wrote:
That looks great, Bob. I guess I could use these for my trim system too, less $ than the RAC relay deck..
I see that the 12V version of the unit you linked to is out of stock - should I look for any 5-pin automotive relay with similar specs, or is there something special about this one?
I tweaked your wiring diagram for my 2-switch setup:

Check the corrected link for the intended
wiring diagram.

Nothing 'special' . . . any of the 12v, 5-pin
devices will do nicely. Some are offered with
a mating plug and wire harness which has some
advantages but sorta complicates diode installation.

But still doable.

Going right to the relay pins with fast-on terminals
lets you mount the diodes right at the relays . . .


Bob . . .


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nuckolls.bob(at)aeroelect
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PostPosted: Thu Dec 12, 2019 8:11 am    Post subject: Flap relay Reply with quote

At 01:13 AM 12/12/2019, you wrote:
Quote:
Pat does this allow for "ïnstructor" override?

Yes . . . if BOTH switches are operated
but in opposing directions . . . the motor
simply stops.

Quote:
On Thu, 12 Dec 2019 at 08:23, Pat Little <roughleg(at)gmail.com (roughleg(at)gmail.com)> wrote:
That looks great, Bob. I guess I could use these for my trim system too, less $ than the RAC relay deck..
I see that the 12V version of the unit you linked to is out of stock - should I look for any 5-pin automotive relay with similar specs, or is there something special about this one?
I tweaked your wiring diagram for my 2-switch setup:

Check the corrected link for the intended
wiring diagram.

Nothing 'special' . . . any of the 12v, 5-pin
devices will do nicely. Some are offered with
a mating plug and wire harness which has some
advantages but sorta complicates diode installation.

But still doable.

Going right to the relay pins with fast-on terminals
lets you mount the diodes right at the relays . . .


Bob . . .


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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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