REFLECTOR: Velocity heater

[John Dibble]

I've thought about that.  When I have some free time, yeah right, I'll test the output
of a spare bilge blower with a water manometer using the data Ronnie conveniently
provided.  I suspect that freely flowing air from the blower will not be sufficient,
however it the flow is restricted, it should build up more pressure.  We'll see.

John

Lou Stedman wrote:

> John that sounds interesting but I would think that it would take a very
> powerful blower to push back the incoming air to at 170 kts. Let us know how
> it works out. Thanks.
>
> Lou Stedman
> Velocity N7044Q
> Olean, NY
> ----- Original Message -----
> From: "John Dibble" <aminetech at bluefrog.com>
> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> Sent: Tuesday, January 08, 2008 2:25 PM
> Subject: Re: REFLECTOR: Velocity heater
>
> > Dave,
> >
> > If I do more cold weather flying, I'm thinking of trying a flap in the
> > naca scoop that
> > the blower would force open and block the fresh air.  That way it is all
> > automatic and
> > no manual closing of the naca scoop is required.  Then on a long trip from
> > FL to NY
> > you can have it both ways.
> >
> > John
> >
> > David Scharfenberg wrote:
> >
> >> Thanks Rene
> >>
> >> My plan now is to make a removable cover for the NACA scoop in front of
> >> the oil cooler.
> >>
> >> Attach a bilge blower onto the close-out bulkhead above the canard.
> >>
> >> Run SCAT tubing from the blower to a hole in the back of the NACA scoop.
> >>
> >> Make a cover for the above mentioned hole in the back of the NACA scoop.
> >>
> >> In the spring, summer, and fall I will cover the hole and uncover the
> >> NACA scoop.
> >>
> >> In the winter I will cover the NACA scoop and uncover the hole.
> >>
> >> I'll let you know how it works out.
> >>
> >> Dave
> >>
> >> On Jan 8, 2008, at 12:04 PM, Rene Dugas wrote:
> >>
> >> > Dave, just a thought that I tried and worked well was to suck air out
> >> > of
> >> > one front foot well and blow it into the other since you already have
> >> > the scat tubing and with the flapper valve closed the cavity behind the
> >> > oil cooler gets quite warm although not hot.  I placed a bilge fan
> >> > blower here and recirculate with minimal added work and significant
> >> > heat
> >> > if I duct tape over the oil cooler fins for winter flying.  I do not
> >> > need either oil cooler for winter flying with my IO 540.  I also have
> >> > the 12v blanket and stay quite comfortable.
> >> > Rene'
> >>
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