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stephan.cassel(at)gmail.c
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 Posted: Thu Sep 12, 2013 12:09 am Post subject: Landing Gear Warning SystemLanding Gear Warning System |
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Hi all,
I built a Gear Up Warning System for some years ago.
Input 1,2:
One micro switch mounted on each outrigger locking system.
Input 3:
One pressure switch mounted on the dynamic pressure hose, same type that is used for the stall warning system. Bought from Europa Aircraft.
Pressure switch will turn off below 65 knots.
All inputs are connected to a relay via diodes.
When all are off (Gear UP and speed below 65 knots): ALARM
Micro switch on the outrigger locking system also tell you that the outrigger is locked.
Best regards
Stephan
LN-STE. Norway
[quote][b]
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Remi Guerner
Joined: 14 Dec 2010
Posts: 284
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| Posted: Thu Sep 12, 2013 11:49 pm Post subject: Re: Landing Gear Warning SystemLanding Gear Warning System |
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Stephan,
I am interested in this subject as I am planning to install a Smart ass and the associated landing gear warning.
In my opinion there is one weakness in your system: if your gear/flap lever is in the down position but not completely pushed to the right the lock is not engaged and your system will not detect it. This "gear down and unlocked" situation happened to me twice recently. Fortunately in both occasions I detected it during the second check and pushed the lever into the locked position before landing.
Has anyone fitted a switch which detect the position of the lock?
Remi
F-PGKL
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roddyeuropa(at)aol.com
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| Posted: Fri Sep 13, 2013 12:28 am Post subject: Landing Gear Warning SystemLanding Gear Warning System |
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're- Has anyone fitted a switch which detect the position of the lock?'
Yes, I have a small magnet on the gear down latch which activates a magnetic reed switch on the console only when the latch is in the right position. This lights up a green light 'gear down'. I didn't want to use a microswitch as I thought there was a chance that it could interfere with the latching, which relies of the latch dropping into position under its own (light) weight.
Roddy Kesterton
G-IKRK
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Remi Guerner
Joined: 14 Dec 2010
Posts: 284
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| Posted: Fri Sep 13, 2013 12:50 am Post subject: Re: Landing Gear Warning SystemLanding Gear Warning System |
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<<>>
Roddy,
Do you have pictures showing details of your installation?
Remi
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