gear up warning trip switch

I broke the gear up warning trip switch on my glider. It was positioned near the landing gear mechanism and had a wire that actuated a warning sound.

Des anyone know a source for a replacement?

Thanks,

Dennis DC

At 16:48 20 October 2016, HGXC wrote:
I broke the gear up warning trip switch on my glider. It was positioned
near the landing gear mechanism and had a wire that actuated a warning
sound.

Des anyone know a source for a replacement?

Thanks,

Dennis DC




You didn’t say what type of switch was been use, I presume it is a micro
switch, so contact has to be made to actuate it, why not use a reed switch,
actuate by a small magnet in close proximity, no need to physically make
contact.
http://uk.rs-online.com/web/p/reed-switches/5309009/

On Thursday, October 20, 2016 at 9:48:44 AM UTC-7, HGXC wrote:
I broke the gear up warning trip switch on my glider. It was positioned near the landing gear mechanism and had a wire that actuated a warning sound.

Des anyone know a source for a replacement?

Thanks,

Dennis DC

Mouser http://www.mouser.com/Search/Refine....rd=microswitch

or

Digikey http://www.digikey.com/product-searc...&newproducts=1

There's also a ton of them in things like retired (junked) copiers and other electronic equipment.

Cheers,
7Q

At 18:13 20 October 2016, Craig Funston wrote:
On Thursday, October 20, 2016 at 9:48:44 AM UTC-7, HGXC wrote:
I broke the gear up warning trip switch on my glider. It was positioned
near the landing gear mechanism and had a wire that actuated a warning
sound.

Des anyone know a source for a replacement?

Thanks,

Dennis DC

Mouser http://www.mouser.com/Search/Refine....rd=microswitch

or

Digikey
http://www.digikey.com/product-searc...&newproducts=1

There's also a ton of them in things like retired (junked) copiers and
other electronic equipment.

Cheers,
7Q


The idea is to avoid micro switches, I have had a lever fall off one in
flight, so had to fly with the wheel down for the rest of the flight to
stop the rackets from the buzzer, so use a reed switch, no physical contact
is needed, when the magnet is moved close to the reed it operate, the reed
could replace your micro switch, and the magnet where the actuator was.

If you use a magnetic reed switch, there's some more things to consider.

First you'll need to determine if the gear warning sounds when the switch is open, or closed. Both types of switch are available, with magnet present a switch may be closed (the most common type of reed switch) or it may be open with the magnet present (there being a tiny biasing magnet within the switch that closes the reed when the external magnet is moved away.

Then there are "wide gap" reed switches too. These are magnet polarity sensitive, so the external magnet needs to be positioned so the correct pole approaches the switch (these switches will still operate if the external magnet is positioned incorrectly - they will just revert to a very small gap).

If the magnet is to be mounted on steel (as in tubing etc.) then better performance will be had if the magnet is not mounted directly to the steel.

On Thursday, October 20, 2016 at 12:48:44 PM UTC-4, HGXC wrote:
I broke the gear up warning trip switch on my glider. It was positioned near the landing gear mechanism and had a wire that actuated a warning sound.

Des anyone know a source for a replacement?

Thanks,

Dennis DC

My current set up is for a micro. I was just going to duplicate what was there. I'm not sure how to set up the reed?

Dennis DC

I have a complete system, never installed, that I picked up somewhere
back in the early 90s. It includes two micro switches, a battery
connector for a 9-v radio battery, a piezo horn, and an ON/OFF switch.
It's all wired together, but can be taken apart to use a switch in your
own installation. Frankly, I'd wire it into ship's power without a
switch. Just one more thing to forget.

Send me your address and I'll send it to you for free (assuming I can
locate it, I think I know where it is). I'll need postage if you're not
in the US.

Dan

On 10/20/2016 6:48 PM, HGXC wrote:
On Thursday, October 20, 2016 at 12:48:44 PM UTC-4, HGXC wrote:
I broke the gear up warning trip switch on my glider. It was positioned near the landing gear mechanism and had a wire that actuated a warning sound.

Des anyone know a source for a replacement?

Thanks,

Dennis DC
My current set up is for a micro. I was just going to duplicate what was there. I'm not sure how to set up the reed?

Dennis DC

--
Dan, 5J

I have a switch - took the battery out of it a long time ago.

I have a butterfly hair clip - I put it on the release knob (actually a string) - when I release I pull up the grear and I move it to the spoiler handle - when I am landing I lower the gear and move it back to the release knob

Works GREAT!

WH

Sorry, I've scoured my hangar and can not find the switches I offered to
give away. I must have given them away to the person who bought my last
glider.

Dan

On 10/21/2016 9:25 AM, Dan Marotta wrote:
I have a complete system, never installed, that I picked up somewhere
back in the early 90s. It includes two micro switches, a battery
connector for a 9-v radio battery, a piezo horn, and an ON/OFF
switch. It's all wired together, but can be taken apart to use a
switch in your own installation. Frankly, I'd wire it into ship's
power without a switch. Just one more thing to forget.

Send me your address and I'll send it to you for free (assuming I can
locate it, I think I know where it is). I'll need postage if you're
not in the US.

Dan

On 10/20/2016 6:48 PM, HGXC wrote:
On Thursday, October 20, 2016 at 12:48:44 PM UTC-4, HGXC wrote:
I broke the gear up warning trip switch on my glider. It was
positioned near the landing gear mechanism and had a wire that
actuated a warning sound.

Des anyone know a source for a replacement?

Thanks,

Dennis DC
My current set up is for a micro. I was just going to duplicate what
was there. I'm not sure how to set up the reed?

Dennis DC


--
Dan, 5J

On Friday, October 21, 2016 at 5:39:55 PM UTC-4, Dan Marotta wrote:
Sorry, I've scoured my hangar and can not find the switches I offered to
give away. I must have given them away to the person who bought my last
glider.

Dan

On 10/21/2016 9:25 AM, Dan Marotta wrote:
I have a complete system, never installed, that I picked up somewhere
back in the early 90s. It includes two micro switches, a battery
connector for a 9-v radio battery, a piezo horn, and an ON/OFF
switch. It's all wired together, but can be taken apart to use a
switch in your own installation. Frankly, I'd wire it into ship's
power without a switch. Just one more thing to forget.

Send me your address and I'll send it to you for free (assuming I can
locate it, I think I know where it is). I'll need postage if you're
not in the US.

Dan

On 10/20/2016 6:48 PM, HGXC wrote:
On Thursday, October 20, 2016 at 12:48:44 PM UTC-4, HGXC wrote:
I broke the gear up warning trip switch on my glider. It was
positioned near the landing gear mechanism and had a wire that
actuated a warning sound.

Des anyone know a source for a replacement?

Thanks,

Dennis DC
My current set up is for a micro. I was just going to duplicate what
was there. I'm not sure how to set up the reed?

Dennis DC


--
Dan, 5J

Thank you Dan, that is a very generous gesture and I truly appreciate it. I have a L-nav as one of my flight computers and as I understand my manual it also can be used as a gear up warning but. I don;t understand how to use it. I also have thought about the opportunity for the switch failing and having to fly with gear down.

Since my knowledge of how the wiring is weak I choose to just replace the existing switch.

Thanks again Dan,

Dennis