REFLECTOR: Cabin Heat/air exit

[Andrew Judge]

Not sure if anyone has seen it, but about a year or two ago, there was a builder who bought a small unit that was fuel powered and was putting it in his plane. I saw the unit and met the builder at the factory. I forgot who it was. It wasn't a janitrol heater. It was something else used in trucks I think.

Anyway, it looked promising. I think the plane was based way up north?

Andy

From: Alex Balic [mailto:velocity_pilot at verizon.net]
Sent: Sunday, January 15, 2012 12:30 PM
To: 'Velocity Aircraft Owners and Builders list' <reflector at tvbf.org>
Subject: Re: REFLECTOR: Cabin Heat/air exit

Hi Mark,
Yea, you just can’t get anything useful from the oil cooler taking on fresh air when the temp outside is more than about 50 degrees less than what you want inside.

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Mark Magee
Sent: Sunday, January 15, 2012 7:55 AM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Cabin Heat/air exit

Alex,
Thanks, that makes sense. Armed with this knowledge there is an opportunity to regulate that suction side I suppose should we desire to focus on recirculated Cabin Heat, which from my read of this thread seems one of the better options for those days approaching 0 degs F at altitude.

Mark B. Magee
N34XL XLFG 300 HP
Brady TX
Sent from IPhone 4

On Jan 14, 2012, at 10:07 PM, "Alex Balic" <velocity_pilot at verizon.net<mailto:velocity_pilot at verizon.net>> wrote:
Cabin air exits through the spar channel, and out of the bottom bolt hole covers which are installed like backward facing scoops for this purpose, it can also exit through the gap between the wing and the strake. On the RG, there is also going to be quite a bit of opening near the gear legs.

From: reflector-bounces at tvbf.org<mailto:reflector-bounces at tvbf.org> [mailto:reflector-bounces at tvbf.org] On Behalf Of Mark Magee
Sent: Thursday, January 12, 2012 10:45 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Cabin Heat

Ruben,
I would like to piggy-back on your question and add this one: Where (by design or not), is the pressurized heated air from the front cooler/NACA scoop exiting the cabin? Is it going out via the door seals (my guess)? I can't see any designed way out for the pressurized air from either cabin heat or overhead cooling vents. Methinks that air pressurized for heating the cabin is better than recirculated air as it floods any possible air leaks into the cabin with the heated air. However as there is no designed vent or dump of the pressurized air, is this situation best for our door seals and/or where ever else the pressurized air exits the cabin.
Not trying to be picky here, but would the cabin heater be more effective if we told it where to exit the cabin rather than it oozing out any air gap it can find? Just asking.

Mark B. Magee
N34XL XLFG 300HP 80 HRS
Brady TX
Sent from IPhone 4

On Jan 12, 2012, at 8:35 PM, "Ruben Creus" <ruben at vainneg.com<mailto:ruben at vainneg.com>> wrote:

Hi all,



When I am flying below 0 Celsius outside temperature, the oil cooler seems to not heat enough the air coming into the cabin. The other day at -12C outside it was very chill in the cabin. I heard some of you partially cover the cooler, but not sure if the can be risky if covered too much. Has any one had any experience trying to get more cabin heat?



Ruben

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