Remi,
If or when we get another hot day I will give this a whirl and record
the numbers for all. Maybe at Rough River if it's nice.
Best,
Jeff R.
A258 - N128LJ / Gold Rush
On Sep 10, 2009, at 2:31 AM, Remi Guerner wrote:
> Hi all,
> I am resending this message to clarify the temperature units:
>
> I have been following the cooling discussion with great interest as I
> have done my own modifications to the cowling over the years with good
> but not 100% satisfactory results.
> As for most Rotax equipped Europas, the main issue is overheating on
> the
> ground at high ambient temperatures. Worst case is when you land, stop
> for 5 minutes, start the engine for another flight and have to hold for
> a long time due to traffic before being cleared for take off,
> especially
> if there is no wind or you cannot face into it.
> An effective validation test for any cooling improvement should be:
> ambient temperature 30-35 degrees Celsius (90 Fahrenheit, to be
> adjusted depending on where
> you fly), no wind. After a short flight, taxi to the parking area, and
> run the engine at high idle (2000-2200 RPM). Note the CHT every minute.
> I would consider this test to be 100% satisfactory if I get the CHT
> STABILIZED not higher than 110 deg C (230 F). Up to now I have not
> managed to pass this test successfully at ambient temperatures above
> 23 deg C (67 F).
> Could those who have done their own cooling modifications try this test
> and let us know the results?
> Best regards
>
> Remi Guerner
> F-PGKL, Monowheel, 912S, 696 hours
>
>
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