---------------------------------------------------------- Glasair-List Digest Archive --- Total Messages Posted Tue 06/19/07: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:46 AM - 50% loss say some (MPPalmer@aol.com) 2. 07:23 AM - Re: 50% loss say some (steve korney) 3. 08:47 AM - Re: 50% loss say some (Craymondw@aol.com) 4. 09:04 AM - Re: 50% loss say some (Craymondw@AOL.COM) 5. 09:21 AM - Re: 50% loss say some (steve korney) ________________________________ Message 1 _____________________________________ Time: 12:46:09 AM PST US From: MPPalmer@aol.com Subject: Glasair-List: 50% loss say some A NASA study http://www.n91cz.com/Interesting_Technical_Reports/NASA_CR3405.pdf suggest the conventional baffle cowl is only 50% efficient at recovering ram air pressure. I tried to baffle ours tightly with that thick RTV baffle material, and from the looks of the wear patterns, it seems tight. (I did the wrap around the front too, to keep air from spilling back out the front.) But I must be losing some air at the inlets, since they don't couple to the upper cowl directly, as is done with an enclosed plenum. That's why I'm looking for someone who has tried it both ways and can report and night/day difference in CHT's on the Glasair. (II) OTOH, I guess it can't hurt to build an enclosed plenum. Can't hurt anything, can only make it better. Mike Palmer <><


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See what's free at http://www.aol.com. ________________________________ Message 2 _____________________________________ Time: 07:23:54 AM PST US From: "steve korney" Subject: RE: Glasair-List: 50% loss say some Mike... I made a enclosed plenum around my engine and lost about 25 degrees of CHT temps... The temps dropped from 375 average to 350 average... Those are good numbers... Picture attached... Best... Steve ----Original Message Follows---- From: MPPalmer@aol.com Subject: Glasair-List: 50% loss say some A NASA study http://www.n91cz.com/Interesting_Technical_Reports/NASA_CR3405.pdf suggest the conventional baffle cowl is only 50% efficient at recovering ram air pressure. I tried to baffle ours tightly with that thick RTV baffle material, and from the looks of the wear patterns, it seems tight. (I did the wrap around the front too, to keep air from spilling back out the front.) But I must be losing some air at the inlets, since they don't couple to the upper cowl directly, as is done with an enclosed plenum. That's why I'm looking for someone who has tried it both ways and can report and night/day difference in CHT's on the Glasair. (II) OTOH, I guess it can't hurt to build an enclosed plenum. Can't hurt anything, can only make it better. Mike Palmer <><


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See what's free at http://www.aol.com. _________________________________________________________________ Make every IM count. Download Messenger and join the im Initiative now. Its free. http://im.live.com/messenger/im/home/?source=TAGHM_June07 ________________________________ Message 3 _____________________________________ Time: 08:47:14 AM PST US From: Craymondw@aol.com Subject: Re: Glasair-List: 50% loss say some I have a Gl2SFT with a 200 HP Lycoming and my cylinder head temperatures are 290 degrees during the winter months and 325 degrees during the summer months. My oil temperature during the winter months are around 190 degrees and during the summer months range around 210 degrees. I have ramp cooling with the cowling inlet top air foiled. And I use silicone to seal the engine. The front baffle is shaped to meet the spinner fairing and I cut out a tire inner tube to form a half moon shaped bulb like seal. I keep my engine temperature down by climbing out at no less than 140 mph. ************************************** See what's free at http://www.aol.com. ________________________________ Message 4 _____________________________________ Time: 09:04:26 AM PST US From: Craymondw@AOL.COM Subject: Re: Glasair-List: 50% loss say some Nice installation ************************************** See what's free at http://www.aol.com. ________________________________ Message 5 _____________________________________ Time: 09:21:28 AM PST US From: "steve korney" Subject: Re: Glasair-List: 50% loss say some Thank... I have a lot of info on a Glasair I RG ... 3500 hours and counting.... Fast and Fun... Best... Steve ----Original Message Follows---- From: Craymondw@aol.com Subject: Re: Glasair-List: 50% loss say some Nice installation ************************************** See what's free at http://www.aol.com. _________________________________________________________________ Need a break? Find your escape route with Live Search Maps. http://maps.live.com/default.aspx?ss=Restaurants~Hotels~Amusement%20Park&cp=33.832922~-117.915659&style=r&lvl=13&tilt=-90&dir=0&alt=-1000&scene=1118863&encType=1&FORM=MGAC01 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message glasair-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Glasair-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/glasair-list Browse Digests http://www.matronics.com/digest/glasair-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.