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Radiator shutters


Scrapman1959

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I don't have a CT but my Sting has a Permacool oil thermostat that will keep the temps no lower than 180-190F although I've not flown in temps below 20F. Really haven't had the opportunity to fly in colder weather given my location but I'd assume it would work. I rarely tape since I've found I can just hit 200F using a steep climb to 3-4K feet in most Dallas conditions. Cruise then settles somewhere between 180 and 190F.

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That might work well for you guys dealing with small temperature changes, I fly to work everyday it's VFR and that means on Monday morning it could be 5 below zero and flying home Tuesday evening it may be 35 above. I would be adding and removing tape several times a week. For the extremes we have here in the Midwest, the shutters are the way to go.

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At those temps you do not need to add or remove any tape. The temp change isn't enough to worry about. I have been doing it this way for 6 years on the CT and more years on other Rotax engines.

5 below and 35F won't be a big shake. Put the tape on to see around 200F at 0-5F and you'll be good to go on the 35F swing for the cold..

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