Hi Garry
If you are worried about your controls freezing the commercial guys just keep
moving the the controls untill the waters gone.
Ray
On 10/28/2010 11:24 AM,
wright.garry30@gmail.com wrote to rebel-builders:
-> Thanks Walter and David. There does seem to be some variability in
reactions
-> to this question. One report sent directly to me said he had icing at 35 deg
-> air temp which agrees with the notion that evaporative cooling can
-> aggravate the problem. I would like to get some more responses - maybe
Ken
-> can comment - he always gives a good engineering view.
->
-> Garry
->
-> On Thu, Oct 28, 2010 at 12:07 PM, Walter Klatt <
Walter.Klatt@shaw.ca>
wrote:
->
-> > I have not flown much in freezing conditions, but have always wondered
-> > about
-> > this, too. I did fly a few times, though, in the last few years, in the
-> > winter here on the coast, when the temps were near freezing at the
surface
-> > and below freezing at my cruising altitude. After landing and taking off at
-> > the lake (Harrison), I wondered if the gear would come down normally,
but
-> > it
-> > always did.
-> >
-> > However, have not done this in severe freezing conditions where the
OAT
-> > would have been more than 10 degrees lower than freezing. If it is that
-> > cold, don't think I want to go flying here anyway. We get enough warmer
-> > days
-> > to fly in the winter, so I can be wait for that.
-> >
-> > Walter
-> >
-> > -----Original Message-----
-> > From:
mike.davis@dcsol.com [mailto:
mike.davis@dcsol.com] On Behalf Of
-> > David
-> > Jackson
-> > Sent: Thursday, October 28, 2010 10:36 AM
-> > To: Rebel Builders
-> > Subject: RE: [rebel-builders] float operations
-> >
-> >
-> > Garry,
-> > I don't think you can get the temperature below freezing because of
-> > evaporation. Even windchill is only a measure of an equivalent cooling
-> > rate, not an actual temperature (i.e the wind chill can be -5 C when the
-> > actual temperature is +2 C, water won't freeze). I believe that as long
as
-> > you stay below the freezing level (see your GFA - icing, turbulence and
-> > freezing level) you will be OK. You are more likely to run into problems
-> > with your gear if you are operating off of a slushy surface, like a runway,
-> > and then climb into colder air. Slush canl build up in the wheel wells and
-> > can then freeze in the colder air aloft. The risk of lake water
-> > accumulating and freezing is a lot less ;).
-> >
-> > Dave J
-> >
-> > > Date: Mon, 25 Oct 2010 22:57:28 -0600
-> > > Subject: [rebel-builders] float operations
-> > > From:
wright.garry30@gmail.com
-> > > To:
rebel-builders@dcsol.com
-> > >
-> > > Does anyone know at what temperature/densityaltitude/dewpoint
combination
-> > > there is a risk of water from a lake freezing the gear on an amphib?
-> > Clearly
-> > > it will be higher than the freezing temperature of 0 deg C because of
the
-> > > cooling effect of evaporation but ....??? Is there a rule of thumb saying
-> > no
-> > > water-ops below xx degrees C?
-> > >
-> > > Garry
-> > >
-> > >
-> > >
-> > >
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