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Burrilla
Joined: 25 Apr 2015
Posts: 182
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 Posted: Thu Aug 25, 2016 7:04 am Post subject: Cooling issues XS 914 on the ground |
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I’ve just looked at these>
http://www.demon-tweeks.co.uk/motorsport/fans-fan-kits/revotec-slimline-cooling-fans
various sizes.
Alan
[quote] On 25 Aug 2016, at 15:55, david park <dpark748(at)icloud.com> wrote:
Can you give fan specs and where available!
Dave Park
> On 25 Aug 2016, at 15:22, Greg Fuchs <gregoryf.flyboy(at)comcast.net> wrote:
>
>
>
> I am implementing a cooling fan for ground running. No temp specs, since the
> plane is in build....however, a cooling fan in similar arrangement works
> great on my motorcycle, so I figured it might work well here. Its an
> electric radiator fan for a quad Kart of of some sort, and covers approx.
> half of the oil cooler. The oil cooler, though offset from the water cooler
> (914 engine), is sealed to it in the area where they over-lap in front of
> the fan to promote airflow through both radiators (sucking air through the
> oil radiator will also do the same with the water radiaor...lots of work
> here to create tight-fitting air dams). Having the two radiators tight with
> each other will hopefully cut down on warm-up time during the winter as
> well. The fan is lightweight, cheap, and only requires a wire run and
> switch. Once verified to work, it will be made to be automatic on/off. For
> extreme cooling situations in flight with the airflow pushing and the fans
> pulling, the extra leverage 'seems' a no-brainer. I figure it won't windmill
> much if at all in the airflow while off, due to the resistance to the air by
> the radiators mounted in front of it. This arrangement would be much easier
> to implement with the radiators in-line with each other, but the offset is
> known to work well, and the decision had already been made. More data will
> follow at some point..
> Greg Fuchs
> 914 TRI
>
> --
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cakeykev(at)gmail.com
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| Posted: Thu Aug 25, 2016 7:32 am Post subject: Cooling issues XS 914 on the ground |
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Demon tweeks do mc fans push and pull with specs of m2 per hour
Kevin
[quote] On 25 Aug 2016, at 15:55, david park <dpark748(at)icloud.com> wrote:
Can you give fan specs and where available!
Dave Park
> On 25 Aug 2016, at 15:22, Greg Fuchs <gregoryf.flyboy(at)comcast.net> wrote:
>
>
>
> I am implementing a cooling fan for ground running. No temp specs, since the
> plane is in build....however, a cooling fan in similar arrangement works
> great on my motorcycle, so I figured it might work well here. Its an
> electric radiator fan for a quad Kart of of some sort, and covers approx.
> half of the oil cooler. The oil cooler, though offset from the water cooler
> (914 engine), is sealed to it in the area where they over-lap in front of
> the fan to promote airflow through both radiators (sucking air through the
> oil radiator will also do the same with the water radiaor...lots of work
> here to create tight-fitting air dams). Having the two radiators tight with
> each other will hopefully cut down on warm-up time during the winter as
> well. The fan is lightweight, cheap, and only requires a wire run and
> switch. Once verified to work, it will be made to be automatic on/off. For
> extreme cooling situations in flight with the airflow pushing and the fans
> pulling, the extra leverage 'seems' a no-brainer. I figure it won't windmill
> much if at all in the airflow while off, due to the resistance to the air by
> the radiators mounted in front of it. This arrangement would be much easier
> to implement with the radiators in-line with each other, but the offset is
> known to work well, and the decision had already been made. More data will
> follow at some point..
> Greg Fuchs
> 914 TRI
>
> --
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gregoryf.flyboy(at)comcas
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| Posted: Thu Aug 25, 2016 7:37 am Post subject: Cooling issues XS 914 on the ground |
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Dave,
Dimension of fan is approx. 100mm square, and is made for radiator cooling,
so it should handle the temps.
Put this into your favorite web search tool:'Electric Radiator Cooling Fan
For Chinese 200cc 250cc Quad ATV Go Kart Buggy'
You'll find it...cost is about 15 US Dollars. Cheap enough to try.
Greg
--
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dpark748(at)icloud.com
Guest
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| Posted: Thu Aug 25, 2016 7:46 am Post subject: Cooling issues XS 914 on the ground |
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Thanks
Dave Park
[quote] On 25 Aug 2016, at 16:36, Greg Fuchs <gregoryf.flyboy(at)comcast.net> wrote:
Dave,
Dimension of fan is approx. 100mm square, and is made for radiator cooling,
so it should handle the temps.
Put this into your favorite web search tool:'Electric Radiator Cooling Fan
For Chinese 200cc 250cc Quad ATV Go Kart Buggy'
You'll find it...cost is about 15 US Dollars. Cheap enough to try.
Greg
--
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Remi Guerner
Joined: 14 Dec 2010
Posts: 284
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| Posted: Thu Aug 25, 2016 10:22 am Post subject: Re: Cooling issues XS 914 on the ground |
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Thanks Nigel for your detailed answer. I look forward to hear from you when you are in the testing phase of your Calypso.
Remi
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carlp101
Joined: 07 Mar 2016
Posts: 120
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