Dene, It may be helpful to go to VAN's website. In particular look at segment on Van's private motor glider project. There is a picture of the partly completed aircraft showing a JABIRU 2200 installed. Perhaps he knows something that we do not. He has discarded the JABIRU "cooling ducts/plenums" and is proceeding (at least at this stage) with a conventional baffle system. I too have a pressing interest in cooling a 3300. Cheers alan.c.tay...@bigpond.com
MALENY Q AUST 4552 -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf Of Dene Collett Sent: Monday, 7 December 2009 3:24 PM To: KRnet Subject: Re: KR> 3300 Jabiru to cool correctly I have tried all kinds of lips of various sizes at the exit to no avail. I also have an in flight adjustible flap that hinges down to open and close the exit which forms a hige "lip" when in the full open position. It also has sides as we thought the air being displaced by the flap was spilling round the sides of the flan satisfying the low pressure at the mouth of the exit...... no luck. The air inlets were sized the same size as the four seater Jabiru aircraft which uses the same motor. What was not taken into considderation was the fact that the motorglider flies at a much lower airspeed than the Jabiru. My next experiment is to enlarge the inlets and see what difference that makes. Regards Dene Collett Avlec Projects cc Port Elizabeth South Africa ----- Original Message ----- From: <lureloc...@aol.com> To: <kr...@mylist.net> Sent: Saturday, December 05, 2009 11:48 PM Subject: Re: KR> 3300 Jabiru to cool correctly The Jabiru directions recommend the lip on the lower opening plus the outlet opening be three times the size of the inlet. _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html