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Old December 26th 18, 03:27 PM posted to rec.aviation.soaring
Dan Marotta
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Posts: 4,601
Default Recirculate cockpit air to keep feet warm?

Oh, and look at the test video included with the ad for the boot
insulators.Â* It's quite impressive!Â* I had not noticed it before.

On 12/26/2018 8:19 AM, Dan Marotta wrote:
I've had electric insoles and they were worthless.Â* I've also used
chemical heaters and they worked somewhat, but it was uncomfortable
having something wedged inside my shoe.Â* Now we use insulated booties
which fit over sneakers and hold in the body's own heat. I've flown
many hours in wave and my feat stayed toasty regardless of the sun or
lack thereof.Â* On one trip where it was exceptionally cold, I opened a
chemical heater at altitude and stuck it inside my jacket to help keep
my core warm.

These look quite bulky, but they're soft and fit into my pedal area.Â*
It is a Stemme, however so there's a bit of extra room.Â* I have a
friend who flies an HpH 304CZ and he wears them every time in the
winter months.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1


On 12/26/2018 12:01 AM, Darryl Ramm wrote:
On Tuesday, December 25, 2018 at 9:53:19 PM UTC-8,
wrote:
As we know, flying in wave with the sun shining, much of the cockpit
stays reasonably warm, but the feet, down in the shade, get cold.Â*
So, as I'm here at home on a cold night with a fan helping
distribute the heat from the wood stove to another room, it occurred
to me that something like that may be possible in the cockpit?Â* A
small fan (using a fraction of the electric power that the typical
instrument panel uses), perhaps with a short duct, could move
sun-warmed air towards the feet.Â* Has that been tried?Â* Does it
help? Would it use more electrical power than electrically heated
insoles?

Back when I flew an HP-14 which had a canopy that extended forward
over the rudder pedals, my feet were much warmer in cold but sunny
weather than they are in my current glider.Â* As long as I was
pointed towards the sun, that is - typically pointed into a West
wind in the afternoon.Â* As soon as I turned around to the East the
cockpit temperature plunged.

It's not sun warmed air at play. It's sun warmed legs/feet.



--
Dan, 5J