---------------------------------------------------------- KIS-List Digest Archive --- Total Messages Posted Sun 08/11/13: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:12 PM - Cowling Air Scoop and my wife... (Robert Reed) 2. 08:53 PM - Re: Cowling Air Scoop and my wife... (Flyinisfun@aol.com) ________________________________ Message 1 _____________________________________ Time: 07:12:40 PM PST US From: Robert Reed Subject: KIS-List: Cowling Air Scoop and my wife... Saturday was another hotter than=0Ahell day of work on the plane. I spent t he morning shaping the foam down to=0Aexactly what I had planned and I thou ght it looked pretty good. I then mixed up=0Athe micro-epoxy and started th e fill in of the foam and the smoothing out of=0Athe form to the cowling. T he fill in worked well for the first 15 or 20 minutes=0Aand then the heat ( 101 degrees) got to the epoxy and it started setting up in=0Athe cup. I man aged to just barely finish what had to be done but had about 1/4=0Aof the m ix harden in the cup.=0A=C2-=0AThe=0Afirst photo in each of the groupings was taken following the Saturday session.=0A=C2-=0AI=0Ashowed the photos to my wife that evening and she looked at all of the photos=0Afor several minutes, made a non-approving sound, and handed the iPhone back to=0Ame. No w after over 38 years of marriage I have learned to read her fairly well=0A and when she doesn't like something I have done she never comes right out a nd=0Asays it "SUCKS" but I get the message just the same. Her response was =0Aone of those "well if you insist" it is ok but I would do it over.=0ATru th was that while the results were exactly what I had planned, they were a =0Adisappointment to me as well. My wife just reflected back to me what she knew I=0Awas feeling. =0A=C2-=0ASunday=0Amorning, early Sunday morning, 4:30 am on Sunday morning, I am awake working on=0Athe plane in my mind as I usually do when I am trying to work out problems. I=0Acan see every part and mentally I try everything from tear it all out and start=0Aover to leav e it as is and hope that when finished it will look ok. I have read=0Asever al articles regarding the efficiency of the air inlets.=C2- One of the th ings I remembered was regarding=0Athe shape of the inside of the inlet and that the efficiency was improved by a=0Arolled and expanding inlet. =C2-T he major=0Aissue I saw with my initial try was the opening just looked too oversized and=0Aneeded to be toned down.=C2- The whole thing=0Ajust looke d too bulky and out of proportion.=0A=C2-=0AI didn=99t want to star t over.=C2- I am at the point now where unless it is an=0Aissue of flight worthiness I am going to move on and NOT tear anything else=0Adown to star t over.=C2- I want to get it=0Aflying!=C2- So the outcome of my 5am des ign=0Asession was to try and add some foam to the inside of the opening and trim down=0Athe outside to minimize the opening by a couple of inches.=C2 - I bonded in a couple of foam inserts to the=0Ainside of the original op ening and then shaped them to form a very rounded=0Atransition to the insid e of the scoop.=C2- I=0Athen cut down the outside of the scoop around the opening and rolled it back=0Ainto the original shape.=C2- Mixed another batch of epoxy-micro and filled everything in with the same problem as Satu rday, almost 1/2 the batch setup before I could apply it.=C2- Can't under stand, I was only 99 today.=0AThe second photo in each pair is=0Athe result ing design. =C2-They are still=0Asomewhat rough with only the epoxy-micro applied and not smoothed out yet.=C2- I am much happier with the result and after=0Ashowing the resulting photos to my wife I think I might be on f airly good=0Aground.=C2- She liked it. The opening is=0Aalmost 2 inches s maller in width and =C2=BD inch in height.=C2- The outside shape is more rounded and=0Aaerodynamic.=C2- The changes aren=99t dramatic=0Abut when viewed from all angles I think it looks better.=C2- =0AI am thinking about shaping a small bit of a fish mouth into=0Ait when viewed from the s ide but not sure how it will look.=C2- Any comments?=0A=C2-=0ABob Reed ________________________________ Message 2 _____________________________________ Time: 08:53:16 PM PST US From: Flyinisfun@aol.com Subject: Re: KIS-List: Cowling Air Scoop and my wife... Bob, I had the same problem with epoxy and heat until I got a small pan large enough and deep enough to handle about three large glasses of ice. Put the cans of resin and hardener in the ice, probably pour in a little water to get things going. Cool down the epoxy before mixing, then mix. Have another container the size of the mixed batch and put the cup or whatever into it. Keep the batch in the ice and mix it up there and use out of it as you need it. It will not flash off on you. You can get ice at McDonalds or your favorite fast foods place. You won't need all that much ice to do the trick. Jesse Wright In a message dated 8/11/2013 8:13:11 P.M. Mountain Daylight Time, robertr237@att.net writes: Saturday was another hotter than hell day of work on the plane. I spent the morning shaping the foam down to exactly what I had planned and I thou ght it looked pretty good. I then mixed up the micro-epoxy and started the fill in of the foam and the smoothing out of the form to the cowling. The fill in worked well for the first 15 or 20 minutes and then the heat (101 degrees) got to the epoxy and it started setting up in the cup. I managed to just barely finish what had to be done but had about 1/4 of the mix harden in the cup. The first photo in each of the groupings was taken following the Saturday session. I showed the photos to my wife that evening and she looked at all of the photos for several minutes, made a non-approving sound, and handed the iPhone back to me. Now after over 38 years of marriage I have learned to r ead her fairly well and when she doesn't like something I have done she never comes right out and says it "SUCKS" but I get the message just the same. H er response was one of those "well if you insist" it is ok but I would do it over. Truth was that while the results were exactly what I had planned, th ey were a disappointment to me as well. My wife just reflected back to me wha t she knew I was feeling. Sunday morning, early Sunday morning, 4:30 am on Sunday morning, I am awake working on the plane in my mind as I usually do when I am trying to work out problems. I can see every part and mentally I try everything from tear it all out and start over to leave it as is and hope that when finished it will look ok. I have read several articles regarding the efficiency of the air inlets. One of the things I remembered was regarding the shape of the inside of the inlet and that the efficiency was improved by a rolled and expanding inlet. The major issue I saw with my initial try was the openin g just looked too oversized and needed to be toned down. The whole thing ju st looked too bulky and out of proportion. I didn=99t want to start over. I am at the point now where unless it is an issue of flight worthiness I am going to move on and NOT tear anything else down to start over. I want to get it flying! So the outcome of my 5a m design session was to try and add some foam to the inside of the opening a nd trim down the outside to minimize the opening by a couple of inches. I bonded in a couple of foam inserts to the inside of the original opening a nd then shaped them to form a very rounded transition to the inside of the scoop. I then cut down the outside of the scoop around the opening and ro lled it back into the original shape. Mixed another batch of epoxy-micro and filled everything in with the same problem as Saturday, almost 1/2 the bat ch setup before I could apply it. Can't understand, I was only 99 today. The second photo in each pair is the resulting design. They are still somewhat rough with only the epoxy-micro applied and not smoothed out yet. I am much happier with the result and after showing the resulting photos to my wife I think I might be on fairly good ground. She liked it. The opening is almost 2 inches smaller in width and =C2=BD inch in height. The outside shape is more rounded and aerodynamic. The changes aren=99t dramat ic but when viewed from all angles I think it looks better. I am thinking about shaping a small bit of a fish mouth into it when viewed from the side but not sure how it will look. Any comments? Bob Reed ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kis-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/KIS-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/kis-list Browse Digests http://www.matronics.com/digest/kis-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.