REFLECTOR: Squat-switch setting

[Pat Shea]

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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