REFLECTOR: Gear Warning System

[Michael Watson]

AL,

Please send me a copy of your schematic. Thanks.



On Sat, Jan 22, 2011 at 11:53 AM, Al Gietzen <ALVentures at cox.net> wrote:

>  As promised, I have scanned my gear circuit diagram which uses the
> airspeed switch to both prevent gear up when on the ground, and provide
> warning if speed is below set speed (mine set at 90 kts) and the gear is not
> down.  I also have a circuit diagram for a tone generator that can provide a
> alarm input to your audio panel for hearing in the headset.
>
>
>
> Both of these scans are larger than allowed on the reflector.  If you are
> interested, I can e-mail directly to you.
>
>
>
> Regards,
>
> Al Gietzen
>
>
>
> -----Original Message-----
> *From:* reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] *On
> Behalf Of *Al Gietzen
> *Sent:* Saturday, January 15, 2011 12:46 PM
> *To:* 'Velocity Aircraft Owners and Builders list'
> *Subject:* Re: REFLECTOR: Gear Warning System
>
>
>
> I do have the squat switch, I installed it back in 1999. It is set to
> activate at 40 KIAS. Unfortunately
> at touchdown, my airspeed is ~ 65 KIAS, so the squat SW dose not prevent
> the gear from going up.
>
> Michael, Bob;
>
>
>
> That airspeed switch has a small allen-head adjustment screw at the top
> center whereby you can adjust the speed at which it switches.  Mine is set
> for about 90 Kias (it has a band width of a few kts), and has worked
> consistently and reliably for 200hrs and over 4 years. My SE RG lands hotter
> than your plane by about 15 kts – canard stall is about 70.
>
>
>
> My speed needs to be about 90 for gear retraction; and if I’m below 90 with
> the gear up the alarm is actuated.  There is of course a reset button for
> the rare occasion when I want to play below 90 in the air.
>
>
>
> The circuit diagram is integrated into the landing gear system on an 11 x
> 17 which my scanner won’t handle.  I’ll figure out a way.
>
>
>
> Al
>
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-- 
Mike W.
1997 Velocity Elite RG
Franklin /IVO Electric CS
Dual GRT EFIS HX Synthetic Vision
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