Hi Jon, I've experimented a looong time, until I found a perfect setup with a XS cowling, water thermostat and almost all air forced through the radiator with only a 5mm gap below it to feed the 7-ro
I was wondering for a long time if a radiator(s) exit flap could be implemented such that during very cold weather the exit could be totally blocked off (and also blocking off the cowl exit concurren
Thanks Duncan, Roland & Pete for your replies. You make me feel a bit better about the low coolant temperature! Indeed I have always considered the oil temperature to be more I mportant hence my fitt
30-40C does seem incredibly low; so low that Id suspect a dodgy reading. Have you checked the accuracy of the gauge/sender? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=47
Hi Rick, that is a very good point and next time I will test it out with a pan of hot water and a thermometer to be sure. However both gauges (I have the standard cylinder head temp gauge plus an act
Hi Jon, Regarding the heat take off from the radiators, I installed mod 10986 where a door in the aluminium air flow ducting opens into the airflow coming through the water radiator and directs it in
After experimenting for 16 years with the cooling of my Europa XS, I found that the best results are obtained with the installation of an effective cowl flap. The cowl flap does two things: 1. increa
Hi Remi, Happy new year! Congrats on your successful setup - looks very nice! and thanks for confirming my optimistic theory that cabin heat could indeed be taken from the fully choked radiators. Cou
Pete, The present version of my cowl flap was installed in May 2016. So that is only the second winter with that configuration. It was tested down to about minus 5C. At this temp I was using only one
Remi, that is a very clean setup and an Incredible effective cabin heater. I have a flap behind the oil cooler, but it's limit is about -5C OAT at 80C oil with normal clothing, especially at high alt
Hi Carl and Remi. Thank you for your thoughts (and photos Remi). I have thought for a while that some sort of cowl flap would be advantageous on such a closely cowled and fast aircraft. My cooling is
I will be eagerly awaiting your colder/higher data Remi, and am hopeful that since the ~40hp of waste heat is available regardless of outside temp, your tight cowling and flap should still heat the c
wrote: found that the best results are obtained with the installation of an effective cowl flap. Remican you describe your open-close linkage?Is it spring-loaded to the =9Copen=9D position w/ a =9Cp
Fred, The attached picture shows how the button lock push pull control (A700 from ACS) is installed below the instrument module and under the top of the pilot footwell. --From there the casing makes
At Oshkosh 2016, Erich Trombley showed us the cowl flap he fitted. We have copied it and find it provides similar benefits as Remi described. The only difference --From Remi's is that we use a electr
Incidentally I found this https://www.experimentalaircraft.info/homebuilt-aircraft/rotax-aircraft-engines-3.php in the www. According to their "quick reference guide" the ideal CHT should be 75-110C.
Made two similar flights the day before yesterday in about the same temperatures, but down low under an overcast (1500-2000ft). Now the CHT was 85C (thermostatic controlled) and oil 81C. I didn't exp