Put the draggy venturi tube inside the cowl.
Warm air exiting the cowl will keep it from
icing, Virg
On 1/25/2016 11:16 AM, Nerobro via KRnet wrote:
> <--- not a pilot... Yet...
>
> Manifold vacuum isn't something I'd depend on. As engine load goes up,
> manifold vacuum goes down. I'd worry about instruments getting good vacuum
> on climbout. If the engine cuts out, your manifold vacuum will drop as
> well (even if the prop windmills). Using exhaust to produce vacuum is
> interesting too, I bet it would work, but I doubt you'd get good vacuum
> with the engine windmilling.
>
> I suppose i'm making the argument for a vacuum horn, or an engine driven
> vacuum pump, and am assuming the engine will windmill.
>
> On Mon, Jan 25, 2016 at 9:55 AM, Jeff Scott via KRnet <krnet at
> list.krnet.org>
> wrote:
>
>>
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