REFLECTOR: Need for Cabin Heat at Altitude

Wed Jun 26 07:19:42 CDT 2013

Mcmaster also caries blowers I think the same one as below
On 6/25/2013 7:28 PM, Brian Michalk wrote:
> That one looks good.
>
> I did find a match for 105CFM, and came up with this:
> http://www.amazon.com/Jabsco-3-Inch-Flexmount-Blower-105/dp/B00144AL6E
>
> Yours looks like it would be easier to mount.
>
> On 06/25/2013 07:22 PM, Jack Prock wrote:
>> I'm now going to answer my own question... so someone else may benefit.
>> After searching again for a 12-volt squirrel cage blower, I stumbled 
>> across this:
>> http://www.suremarineservice.com/008-A37.aspx
>> It should work really well, it is about the right size, with 150CFM,
>> and set up for 3 speeds.  12 V  @ 5 amps
>> I will just have to create a mounting bracket.
>> If anyone else is interested in this, it will be a few weeks before I 
>> get it installed,
>> but I will let you know.
>> Jack
>> *From:* Jack Prock <mailto:jackprock at wavecable.com>
>> *Sent:* Tuesday, June 25, 2013 2:33 PM
>> *To:* Velocity Aircraft Owners and Builders list 
>> <mailto:reflector at tvbf.org>
>> *Subject:* Re: REFLECTOR: Need for Cabin Heat at Altitude
>> Yes, please give fan manufacturer, part number, and where we can buy it.
>> After finding that the bilge fan that was originally discussed a few 
>> years back
>> just won't push air through the oil cooler, I have spent several 
>> hours online
>> looking for just such a fan. But, have yet to find a 12 volt, 
>> reasonably compact
>> fan that can do the job.
>> I would be REALLY interested in receiving any information you have.
>> Jack
>> *From:* Brian Michalk <mailto:michalk at awpi.com>
>> *Sent:* Tuesday, June 25, 2013 11:07 AM
>> *To:* Velocity Aircraft Owners and Builders list 
>> <mailto:reflector at tvbf.org>
>> *Subject:* Re: REFLECTOR: Need for Cabin Heat at Altitude
>> Where did you get your fan, and what part number?
>>
>> On 6/25/2013 12:33 PM, Ruben Creus wrote:
>>>
>>> We just did a similar thing than what is in the email below. We 
>>> install an squirrel cage fan, and a flap on the oil scoop. Different 
>>> tests show that for this magic trick to happen, there one very 
>>> important requirement. And that is, *_"a perfect seal_*" around the 
>>> flap. First, you need to build up air pressure in front of the oil 
>>> cooler to force the air into the radiator. Second, a bilge fan 
>>> cannot work under pressure, but a squirrel fan does. A *_squirrel 
>>> fan_* is designed to work under air pressure losing just few CFM. A 
>>> bilge fan will lose most of its CFM under pressure.
>>>
>>> I did a test in winter and summer, and finally installed it last 
>>> week in with the help of the Sebastian folks. Scott did a super 
>>> detail job there!  We achieved a perfect seal, and we are using a 
>>> squirrel cage fan with 105CFM. The results were impressive. It blows 
>>> a good amount of air, maybe 1/3 of what you would get with the flap 
>>> open in flight, but it looks to be good enough to blow a good amount 
>>> of air. But again, to build pressure in front of the radiator you 
>>> need a perfect seal. Otherwise, air will escape, no pressure will 
>>> built and all the effort will be a waste. Remember, _this can only 
>>> work with a squirrel cage fan. A regular bilge fan cannot work under 
>>> pressure._
>>>
>>> We hade in fact this Sunday a real test scenario, waiting on an 
>>> airport for the clearance and the clear to take off, the oil temp 
>>> started to go up, and there we go!!, we closed the flap and turn the 
>>> fan on and the oil temp started to go down. So we had in group oil 
>>> cooling!!! Now the question remains, will in the winter generate 
>>> enough recirculation heat to heat the cabin in on the ground and in 
>>> flight? Our unorthodox tests of last winter say yes, but it is not 
>>> until now we permanently mounted the solution, so when the cold 
>>> weather comes back in few months I will report to the group the 
>>> results, but it looks very promising.
>>>
>>> Ruben
>>>
>>> ------------------------------------------------------------------------
>>>
>>> *From:*Don Johnston [mailto:numa at comcast.net]
>>> *Sent:* Sunday, June 23, 2013 8:24 PM
>>> *To:* Velocity Aircraft Owners and Builders list
>>> *Subject:* Re: REFLECTOR: Need for Cabin Heat at Altitude
>>>
>>> I don't know if it's going to work (since I'm not flying yet), but 
>>> I've created a controllable door that will block off the outside air 
>>> from the nose oil cooler which will allow inside cabin air to be 
>>> passed through the oil cooler via a blower. Effectively heating 
>>> cabin air instead of outside air.
>>>
>>> http://www.velocity-xl.com/blog/2008/06/14/12-3-6-nose-oil-cooler/
>>>
>>> http://www.velocity-xl.com/blog/2013/05/03/12-3-6-nose-oil-cooler-control/
>>>
>>> -Don
>>>
>>> On Sun, Jun 23, 2013 at 7:15 PM, victor delta <vdelta at pacbell.net 
>>> <mailto:vdelta at pacbell.net>> wrote:
>>>
>>> Looking for experiences, solutions, implementations,  ideas and 
>>> otherwise  for requirement to assure reasonable cabin 
>>> temperature/heat for passengers when flying in lower to mid flight 
>>> levels ongoing.
>>> Especially welcome comments from those that fly their aircraft high 
>>> most of the time, at night and/or during winter months.
>>> Thanks in advance for all contributions.
>>> VD
>>>
>>> _______________________________________________
>>> To change your email address, visit 
>>> http://www.tvbf.org/mailman/listinfo/reflector
>>>
>>> Visit the gallery! www.tvbf.org/gallery <http://www.tvbf.org/gallery>
>>> user:pw = tvbf:jamaicangoose
>>> Check new archives: www.tvbf.org/pipermail 
>>> <http://www.tvbf.org/pipermail>
>>> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>>>
>>>
>>>
>>> _______________________________________________
>>> To change your email address, visithttp://www.tvbf.org/mailman/listinfo/reflector
>>>
>>> Visit the gallery!www.tvbf.org/gallery
>>> user:pw = tvbf:jamaicangoose
>>> Check new archives:www.tvbf.org/pipermail
>>> Check old archives:http://www.tvbf.org/archives/velocity/maillist.html
>>
>> ------------------------------------------------------------------------
>> _______________________________________________
>> To change your email address, visit 
>> http://www.tvbf.org/mailman/listinfo/reflector
>>
>> Visit the gallery! www.tvbf.org/gallery
>> user:pw = tvbf:jamaicangoose
>> Check new archives: www.tvbf.org/pipermail
>> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>>
>> ------------------------------------------------------------------------
>> _______________________________________________
>> To change your email address, visit 
>> http://www.tvbf.org/mailman/listinfo/reflector
>>
>> Visit the gallery! www.tvbf.org/gallery
>> user:pw = tvbf:jamaicangoose
>> Check new archives: www.tvbf.org/pipermail
>> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>>
>>
>> _______________________________________________
>> To change your email address, visithttp://www.tvbf.org/mailman/listinfo/reflector
>>
>> Visit the gallery!www.tvbf.org/gallery
>> user:pw = tvbf:jamaicangoose
>> Check new archives:www.tvbf.org/pipermail
>> Check old archives:http://www.tvbf.org/archives/velocity/maillist.html
>
>
>
> _______________________________________________
> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>
> Visit the gallery!  www.tvbf.org/gallery
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.tvbf.org/mailman/private/reflector/attachments/20130626/8ed25c55/attachment-0001.html>