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  #16  
Old 10-19-2015, 11:55 AM
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TMann TMann is offline
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Default Re: Cabin Heat BTU's

Quote:
Originally Posted by jenatepilot View Post
lol.
follow the above posts.
That would be very sage advice.
If I was trying to start a composite aircraft business, I would listen to some of the free engineering advice that is being literally handed to you.

The numbers don't lie.
Besides, when you are located at the 29th parallel perhaps those of us who live north of the 41st parallel might know something about cold weather flying.

You started this thread looking for information about using a oil cooler as a source of cabin heat. Waiter pulled this off as have many of the Velocity folks for which this is the standard setup. Due to Waiter's location north of the 41st parallel, and the fact that he has flown this arrangement, I'd say that is a credible source of information.

You asked for advice and the advice comes free.
Mistakes cost extra.
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  #17  
Old 10-19-2015, 12:06 PM
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Default Re: Cabin Heat BTU's

Wrong. I've flown my winter hours up North. Research first. Comment second.
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  #18  
Old 10-19-2015, 12:12 PM
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Default Re: Cabin Heat BTU's

I look forward to reading your posted results.
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  #19  
Old 10-19-2015, 12:38 PM
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Default Re: Cabin Heat BTU's

You bet. I noticed your working on blended winglets. Good choice
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  #20  
Old 10-20-2015, 12:23 AM
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Default Re: Cabin Heat BTU's

Why make a heavy draw on your alternator and run heavy current from front to back of the airplane? You can get free heat from your hot oil! I installed a second oil cooler in the hellhole. Installed a marine blower with a hi/lo switch. Works perfect! See under miscellaneous on www.longez209.com.
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  #21  
Old 10-20-2015, 12:30 AM
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Default Re: Cabin Heat BTU's

Don. What are you doing with the heat in summer months?
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  #22  
Old 10-20-2015, 11:35 AM
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Default Re: Cabin Heat BTU's

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Don. What are you doing with the heat in summer months?
The way the Velocity system works, it takes outside air and passes it through the cooler. The heated air is either diverted into the cabin or (in summer) overboard.

The far north guys that require greater amounts of heat have a method of changing the air source from outside air to inside air using a circulating fan like Don mentioned.
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  #23  
Old 10-20-2015, 09:02 PM
Longshot Longshot is offline
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Default Re: Cabin Heat BTU's

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Don. What are you doing with the heat in summer months?

Nothing, just not running the blower. Hasn't been a problem. If my oil temp gets high on the ground I use the blower for additional oil cooling. It then gets a little warm on the feet
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  #24  
Old 10-21-2015, 11:28 PM
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Default Re: Cabin Heat BTU's

Don, naturally I'd be concerned about the heat building up inside the hell hole on hot days in flight. That's quite a bit of heat.
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  #25  
Old 11-20-2015, 08:31 PM
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Default Re: Cabin Heat BTU's

Time for an update.

2- 200W heaters in the nose are drawing 26 amps at 14.4V per my G3X

The heat coming out is impressive. I've got a canard with leaks around the torque tubes and I am still able to get my feet warmed up in under 3 minutes. I will be doing more temps over longer flights and lower temps and keep ya all informed.
I'm able to run all my lights, avionics, and my heated seat on 49 amps. not bad
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  #26  
Old 11-20-2015, 09:23 PM
Marc Zeitlin Marc Zeitlin is offline
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Default Re: Cabin Heat BTU's

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I've got a canard with leaks around the torque tubes and I am still able to get my feet warmed up in under 3 minutes.
At what OAT?
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  #27  
Old 11-21-2015, 02:02 AM
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Default Re: Cabin Heat BTU's

30 below, I had a polar bear in the back seat giving me the thumbs up as well Global Warming hasn't shown up yet I guess

All I have now is cold feet that got warm. More details and temp readings later
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  #28  
Old 11-21-2015, 01:27 PM
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Default Re: Cabin Heat BTU's

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All I have now is cold feet that got warm.
Is this a problem that electric socks could solve?
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  #29  
Old 11-21-2015, 08:30 PM
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Default Re: Cabin Heat BTU's

Sounds great, but 49 amps is a lot of load on an alternator.

Good luck
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  #30  
Old 11-22-2015, 03:31 AM
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Default Re: Cabin Heat BTU's

I agree. 49 amps on a 50 amp alternator is a lot but also a rare "Cold Night flight" kind of situation as well.

I considered electric socks but that's an inconvenience in my book.
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