A thousand apologies. Writing late at night to get a quick answer is not g
ood .
It is a vacuum hookup in the Europa Mod 61, and normally open. Once you go
past the angle, you get suction and the interior wing is positive pressure
so the switch closes. It is pretty clear in the mod61 , I should have rea
d it while awake eh!
Under ram pressure or no movement it is open. Once the relative wind point
exceeds the angle of the tube it goes to suction prior to the stall.
Very sensitive to adjustment still. The cockpit hookup and setting it in t
he copilots lap does work well provided the connections are very tight. I
just got into the habit of hooking it up in the wing as wires are quick and
easy to hook up with a multi connector as my customers normally have light
s and such in their wings. But vacuum lines or pitot-static lines are jus
t as easy to hook up with the right connectors. The switch will need a ser
vice loop for the adjustment tinkering in the cockpit is all. Clean up aft
er install in the fuselage.
Sorry if I added confusion.
Best Regards,
Bud Yerly
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s 10
From: Kelvin Weston<mailto:kelv@kdweston.biz>
Sent: Thursday, June 29, 2017 3:52 PM
Subject: Europa-List: Re: Stall Warner - switch problems
Hi Bud
I think I might have to go with Ian on this one.
The Europa Mod 61 leaflet does state:
Inside the fuselage an adjustable vacuum switch, triggered by reduced press
ure in the line
It also describes connecting the hose to the same side of the switch as the
terminals.
Looking at the tech details on the switch, this is side A and should have v
acuum applied to operate the switch.
--------
Regards
Kelv Weston
Kit 497
kelv@kdweston.biz
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