---------------------------------------------------------- Kitfox-List Digest Archive --- Total Messages Posted Mon 07/30/07: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:39 PM - Re: counter wieght rivets (SUE MICHAELS) 2. 03:25 PM - Re: counter wieght rivets () 3. 04:33 PM - need engineer type to run a calculation (akflyer) 4. 05:55 PM - Re: need engineer type to run a calculation (kirk hull) 5. 06:26 PM - Re: Kitfox flap Handle (Steve Shinabery) 6. 09:32 PM - Re: need engineer type to run a calculation (darinh) ________________________________ Message 1 _____________________________________ Time: 01:39:11 PM PST US From: SUE MICHAELS Subject: Re: Kitfox-List: counter wieght rivets My later model uses part number 90045 MONEL 3/32 x 1/8 pop rivets. Make sure the counter weight conforms smoothly with the flaperon or the rivets won't grab the aluminum. Yes, I had to drill them out before the epoxied set up and redo rivets. I'm trying to figure out what rivets to use to attach the counter wieghts to the flaperon spar. There is a miss print in the manual on the model 4/classic 4 speedster. It is the same miss print as on the rivets for the fuselage butt ribs. It says to use p/n 95006- 1/8x3/8 AS. Looking at the inventory list shows 95006 as a plastic dent rivet and only 4 in the kit.The only 1/8x3/8 rivets are in the fuselage kit and are stainless and I assume the are for the butt ribs(total of 16).Oh, there are 4 of them in the cover and finish kit (not enough).All the other rivets in the flaperons are aluminum so I assume that is what to use,but no such rivets in the inventory. Leon Morris/Classic 4 (94)/50%/Flower Mound,TX ________________________________ Message 2 _____________________________________ Time: 03:25:03 PM PST US From: Subject: Re: Kitfox-List: counter wieght rivets You are right on what you say. Those rivets are for the leading and trailing egde rivets on the flaperons. I was questioning the rivets in the middle that go thru the flaperon spar. I think I may have answered may own question whenI dug up the equation for determining rivet size. Guess I'll use 1/8x3/8 SS for the middle rivets,and I plan then to use 1/8x5/16 to attach the butt ribs to the fuselage. Leon Morris/Classic4/50%/Flower Mound, TX ---- SUE MICHAELS wrote: > My later model uses part number 90045 MONEL 3/32 x 1/8 pop rivets. Make sure the counter weight conforms smoothly with the flaperon or the rivets won't grab the aluminum. Yes, I had to drill them out before the epoxied set up and redo rivets. > > > I'm trying to figure out what rivets to use to attach the counter wieghts to the flaperon spar. There is a miss print in the manual on the model 4/classic 4 speedster. It is the same miss print as on the rivets for the fuselage butt ribs. It says to use p/n 95006- 1/8x3/8 AS. Looking at the inventory list shows 95006 as a plastic dent rivet and only 4 in the kit.The only 1/8x3/8 rivets are in the fuselage kit and are stainless and I assume the are for the butt ribs(total of 16).Oh, there are 4 of them in the cover and finish kit (not enough).All the other rivets in the flaperons are aluminum so I assume that is what to use,but no such rivets in the inventory. Leon Morris/Classic 4 (94)/50%/Flower Mound,TX > > > > > > ________________________________ Message 3 _____________________________________ Time: 04:33:04 PM PST US Subject: Kitfox-List: need engineer type to run a calculation From: "akflyer" I am looking for an engineer type to run the calcs on a set of floats and tell me the displacement. The floats in question are a set of Northaire copies, but they were scaled down a tad from the 1200# floats. Any takers? I can supply all the measurements you need. -------- Leonard Perry Soldotna AK Avid "C" / Mk IV 582 IVO IFA Full Lotus 1260 95% complete Read this topic online here: http://forums.matronics.com/viewtopic.php?p=126490#126490 ________________________________ Message 4 _____________________________________ Time: 05:55:48 PM PST US From: "kirk hull" Subject: RE: Kitfox-List: need engineer type to run a calculation As I am better at picking up the pieces and figuring out how they got there I would not be the guy to run those calcs. However maybe I could stear you toward some info to help you do them your self. In the Dec issue of Sport Aviation on pg 46 there is an article on seaplane design that might help and I seem to remember a while back an article in Sport Aviation about how to size floats -----Original Message----- From: owner-kitfox-list-server@matronics.com [mailto:owner-kitfox-list-server@matronics.com] On Behalf Of akflyer Sent: Monday, July 30, 2007 6:32 PM Subject: Kitfox-List: need engineer type to run a calculation I am looking for an engineer type to run the calcs on a set of floats and tell me the displacement. The floats in question are a set of Northaire copies, but they were scaled down a tad from the 1200# floats. Any takers? I can supply all the measurements you need. -------- Leonard Perry Soldotna AK Avid "C" / Mk IV 582 IVO IFA Full Lotus 1260 95% complete Read this topic online here: http://forums.matronics.com/viewtopic.php?p=126490#126490 ________________________________ Message 5 _____________________________________ Time: 06:26:19 PM PST US From: Steve Shinabery Subject: Kitfox-List: Re: Kitfox flap Handle Hey Noel thanks for the info.I did recive pic's and info for the flap handle.it looks like it will work for me..I will send you pic's of my N554KF.I will have to start working on it...Steve Shinabery ________________________________ Message 6 _____________________________________ Time: 09:32:14 PM PST US Subject: Kitfox-List: Re: need engineer type to run a calculation From: "darinh" Leonard, How accurate do you want the figure? The reason I ask is that some floats have complex curves particularly in the hull area and the calculations would be fairly involved to find exact displacement. If you are looking for a ballpark number, say plus or minus 5% to 10%, you could simply divide the float into sections and approximate the sections using a series of varing sizes of cubes (the more sections, the greater the accuracy)...find the volume of the cubes and then you would have your displacement. Keep in mind that the float will displace more water the further under water it is (i.e. a float that is partially submerged displaces less water than a float that is completely submerged). If your wondering about my credentials, I am one of those engineer types...a civil engineer. This may be a dumb question as I am not up to speed on the various floats offered but wouldn't the manufacturer have that information for you (they would have to figure displacement to determine the capacity of the float). If you are using a scaled down version, simply scale down the displacement the manufacturer has by the amount your floats are scaled. -------- Darin Hawkes Series 7 (under Construction) 914 Turbo Ogden, Utah Read this topic online here: http://forums.matronics.com/viewtopic.php?p=126536#126536 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kitfox-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Kitfox-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/kitfox-list Browse Digests http://www.matronics.com/digest/kitfox-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.