REFLECTOR: Squat-switch setting

[Ron Brown]

Al, that is about the same setting as mine.  It works fine - after I found a 
pinched line going to the switch.  I also routed a line from the low side of 
the switch to the cabin area. The open gear doors have got to be packing 
some air in, perhaps not at pitot pressure but certainly above static.

Ron


----- Original Message ----- 
From: "Pat Shea" <xl340hp at yahoo.com>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Sent: Friday, April 28, 2006 2:29 PM
Subject: Re: REFLECTOR: Squat-switch setting


> Al,
>
> That sounds about right. You obviously want the switch
> set high enough that it won't close while the wheels
> are still on the ground. Although rotation speed is
> around 70KIAS, with a heavily loaded plane and /or
> large x-wind (where you may deliberately hold the
> plane on the ground longer to unable a clean break)
> it's not uncommon for the main wheels to still be
> grounded at 80KIAS.
>
> Anyway, good place to start - you can always fine tune
> based once you have a better read on the max lift-off
> speed for your plane.
>
> Pat XLRG
>
> --- Al Gietzen <ALVentures at cox.net> wrote:
>
>> I have my pitot pressure squat switch wired up to
>> prevent gear retract below
>> the setting when the gear is down; and to sound the
>> warning horn when the
>> pressure goes below the setting when the gear is up.
>>  I verified the
>> operation with a water manometer and find consistent
>> 'gear-up' trip at
>> 87kts, and 'warning-horn' trip at 85kts.  For those
>> of you flying a SE,
>> would you say this setting is about right?
>>
>>
>>
>> Thanks,
>>
>>
>>
>> Al
>
>
>
>
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