Hi all, It is quite on the net so here a post of my progress the lost months.
After 20 hours in one year I getting more and more a KR2S pilot. Feeling great and oke with the landings. Only with the crosswind I was not able to train with it. No cross wind or above the 15kts. I have set my limit now at 10 kts. I had some issues with the cooling. I have tried a lot of stuff the get more vacuum pressure behind the cooler. After many many mods the temp was oke not super but oke . In easy slow flight (105 kts) 108 degree oil temp. My cilinders (air coole) where oke. Than the said to me that the muffler system makes to much noice, so I installed a catalysator to let drop down the noice a few DB. Direct in my first flight the temp climbs to 115 dgr so I was not happy. Did a flight with my wife and the temp was above 120 degr and you have to fly the plane very gentle if not 130 degr was the result. So after a speak to my friends (the are flying with the BMW) and decited to do my year inspection and to ground the plane for a month or so. Change the hole muffler system. One of my friend is flying now with a honda FireBlade titanium muffler add the sound is very nice. So at this moment bussy to install the bigger muffler. I am happy I still can install it inside the cowling. The titanium muffler saves me about 1 kg vs the BMW muffler with the cat. Oil system I started with a 11 row cooler about 30cm wide. Than I changed it to a 19 row. The oil temp dropped but not enough. Now I will install the 11 row as the second cooler so I have 30 rows. This must be enough I hope. My friend who is flying with the same setup as me has 22 rows (2x11 rows) but at an other position. In the mean time I do my year inspection and have no findings till now. I hope to test fly the new setup in about 3 weeks. The BWM engine runs very well and have a lot of power so if the heating issue is solved I think I have a very nice setup. See you stef Steph and his dad are building the KR-2S see http://www.masttotaalconcept.nl/kr2 http://www.masttotaalconcept.nl/kr2 _______________________________________________ Search the KRnet Archives at https://firstname.lastname@example.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org