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Re: Europa-List: Manifold Pressure Gauge

Subject: Re: Europa-List: Manifold Pressure Gauge
From: David Buckley <wooburnaviation@googlemail.com>
Date: Thu, 4 Sep 2008 00:37:47
If you have a constant speed controller, and there is a loss of power in the
engine ( for example from carb ice), the RPM will remain constant ( within
the limits of the prop/CS system) as the prop will fine off.

The simple way to tell what power the engine is producing, if a power loss
occours, is via manifold pressure gauge.


On 03/09/2008, Carl Pattinson <carl@flyers.freeserve.co.uk> wrote:
>
> carl@flyers.freeserve.co.uk>
>
> I am just filling in the LAA form to change our propeller (from a fixed
> pitch to a CS version - Woodcomp/ Smart Avionics controller). The engine is
> a Rotax 912 UL 80hp.
>
> The LAA form says that the installation of a manifold pressure gauge is
> mandatory. Anyone know why?
>
> Its probably a dumb question but I dont understand the point of monitoring
> manifold pressure on a normal engine. I always thought it was more relevant
> to turbocharged engines.
>
> Also where does one take the pressure takeoff on the engine - I would guess
> the balancing pipe between the carburettors - is there a mod required on the
> engine?
>
> Thanks for the explanation in advance.
>
> Carl Pattinson
> G-LABS
>
>
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