---------------------------------------------------------- JabiruEngine-List Digest Archive --- Total Messages Posted Wed 02/17/10: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:44 AM - Air Filter (BobbyPaulk@comcast.net) 2. 10:06 AM - Re: Air filter (Roger Lee) 3. 02:54 PM - Re: Larger alternator 30 Amp (Jaba-who) ________________________________ Message 1 _____________________________________ Time: 07:44:38 AM PST US From: BobbyPaulk@comcast.net Subject: JabiruEngine-List: Air Filter List, The K & N filter 33-2031-2 fits the larger Air box furnished early on by Jabiru Pacific. You should be able to go to the K & N Site and cross reference the number you have. hope this helps Bobby ________________________________ Message 2 _____________________________________ Time: 10:06:54 AM PST US Subject: JabiruEngine-List: Re: Air filter From: "Roger Lee" Thanks guys for helping me out with the part numbers for the air filters. -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Repair Center 520-574-1080 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=286822#286822 ________________________________ Message 3 _____________________________________ Time: 02:54:18 PM PST US Subject: JabiruEngine-List: Re: Larger alternator 30 Amp From: "Jaba-who" I haven't fitted it yet but I have done a lot of research and purchased a smaller B & C Specialty Products alternator (SD-8) that fits on the vacuum pump pad. B & C make a larger model ?SD- 20 I think (maybe I have the number wrong) and the smaller SD - 8. They produce the amps defined by the number in the name. (At about 3500 RPM) They give a table of Output:RPM which says at Jabiru cruise RPMs of say 2700 the SD - 8 will output about 5.5 Amps. SD-8 Sydney University Aviation engineering department have fitted the larger model to a Jabiru and it works well BUT.....(always a BUT)..it generates a very strong magnetic field that disrupted the compass when mounted in the usual position on the dash. I spoke to the head engineer who did the work and he said the SD-20 used different system than the SD-8 which he thought would generate less magnetic field. Though he was only theorizing as he hadn't actually tried it. I have a few amps shortfall due to addition of extra electronics, extra radio, flight computer etc and definitely know the Jabiru alternator is not always outputting the specified 18 Amps at cruise. I have twice lost all electrical power on longer flights when the battery ran down with everything on. And that's with a load calculation of 14 AMps. No big disaster then because the system shut down, charged up the battery to the voltage cutoff level and everything came back on after about two minutes (except the flight computer which was the big drawer) and all continued happily. Fortunately it was at a time when I didn't need either radio or transponder. Our aeroclub had a Jabiru and they had to have a rule of landing lights off as soon as no longer required for same reason. I have been flying without the fancy flight computer till I get some bigger alternator system added. Just as an aside the rumour is that Jabiru factory are currently looking at a bigger alternator (or possibly stacking a second one on the existing one) so all this may be a mute point soon. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=286863#286863 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message jabiruengine-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/JabiruEngine-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/jabiruengine-list Browse Digests http://www.matronics.com/digest/jabiruengine-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.