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oil cooler ?
Hello
I am rebuilding a KF 3 with a Rotax 912
Do I need an oilcooler on my plane?
The average temp in Netherlands is in summer about 25 degrees Celcius (if we have a good summer)
I see often pictures wit complete taped oilcoolers.
I think I never fly full power with my plane ,maybe with the takeoff.
If I don"t need an oilcooler I can build the waterradiator in that place.
Eric
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Senior Member
Re: oil cooler ?
Hi Eric,
The answer is going to be pretty much dependent on the particular plane and conditions.
Where I live the temperature has a drastic range and sometimes I can't live without the oilcooler and sometimes it will overcool the oil.
Normally I completely cover the oilcooler when it is 0 C or less....from 0 C to plus 5-10 C I use tape over half of it. When it is 35 C-----need all the cooling I can get but the tape goes off when it hits 10 C in any case.
Others use shutters (which I like but haven't installed yet) and otyhers use an oil thermostat which is reported to work really well
Sincerely,
Dave S
KF7 Trigear
912ULS Warp Drive
St Paul, Minnesota
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Super Moderator
Re: oil cooler ?
I am not running an oil cooler on my IV-1050 with a 912UL. I run Mobil Racing 4T synthetic oil, which gives the oil temp redline 285˚ (140˚C). I have never gotten close to that. My oil temps usually stabilize around 220-230˚ (105-110˚C) in the warmest weather.
In my part of Wisconsin (USA) our summer peak temps are 90˚F (32˚C) with winter flying around 20˚ (-7˚C).
Av8r3400
Kitfox Model IV
The Mangy Fox
912UL 105hp Zipper
YouTube Videos
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Re: oil cooler ?
Thank You
I think I will try it without cooler.I will try to build the radiator for the coolant inside the cowling and with 2 radiators I think that the airflow for cooling the cylinders will be to little.
Eric
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Re: oil cooler ?
Erik,
Ik heb een 912 in mijn KitFox IV in aanbouw - met oliekoeler.
Je bent welkom kitfoxclassiciv[at]gmail en
http://kitfoxclassiciv.blogspot.nl
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