---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Wed 05/27/09: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:10 AM - Re: Aluminum Fuel Tank for MIII (icrashrc) 2. 07:15 AM - short face book album (Larry Cottrell) 3. 08:48 AM - Re: Re: Aluminum Fuel Tank for MIII (Ron) 4. 04:14 PM - Re: Monument Valley (zeprep251@AOL.COM) ________________________________ Message 1 _____________________________________ Time: 04:10:06 AM PST US Subject: Kolb-List: Re: Aluminum Fuel Tank for MIII From: "icrashrc" We tested to a 5 g positive, 3 g negative load and all the tank supports did was laugh at our attempts. There's really no possibility of the mounting tubes bending. The only way for the tank to get lower would be for the perimeter of the fuselage to collapse. The way the tank braces are made makes even this very unlikely. I may have a couple better pictures of the setup. If so I'll post them in the next few days. Also, remember the factory setup puts 12 gallons of fuel on those tubes WITHOUT stiffening the tubes as we have. Scott captainron1(at)cox.net wrote: > I like your design, its simpler than mine. I certainly think you ought to run another lateral brace with a support base off the tail boom. Your wood support as temporary as it is right now should be used with some alteration to be the base on the tail boom to distribute the load. > If I remember (gotta fly up to PHX today) when I come back I'll scribble something down as an idea for you to consider. But I like your design, way less plumbing than mine, about 5 gallons less total fuel than my M3X, but not often I see a need for more than 15 gallons anyway. > The short answer yes you need to brace the bottom of your tanks for sure, flight loads and the weight will bend the tubes down on the frame to where it will start contacting the control tube. > > Ron @ KFHU > ============================= > > ---- icrashrc wrote: > > ============ > > > Here's how we did it. > > http://www.ill-eagleaviation.com/fuel_tank.htm > > -------- > Scott > > www.ill-EagleAviation.com > > do not archive > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p 45368#245368 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=245526#245526 ________________________________ Message 2 _____________________________________ Time: 07:15:08 AM PST US From: "Larry Cottrell" Subject: Kolb-List: short face book album http://www.facebook.com/album.php?aid 17267&id=1002056194&l=a5ce0 d1ecb I did a short highlight of our trip to Monument Valley and some of the activities after we and the MV gaggle returned here. Larry ________________________________ Message 3 _____________________________________ Time: 08:48:19 AM PST US From: Ron Subject: Re: Kolb-List: Re: Aluminum Fuel Tank for MIII Okay that will be good to see a clearer picture of the tank area. I took some more pics yesterday when I came back of my set up, and as soon as I can remember where I put the camera I'll post them. I really should take some pics of the tanks themselves, as in my design they take quite a bit of the structural load. But I also added some lower bracing and some lateral bracing in tension to keep the tanks from wanting to strain on the frame outwards. As someone mentioned years ago not till I am on my third Kolb will I be able to get it all just right. right now my main emphasis is to build it strong and if its a few pounds more then so be it. I will have excess HP so in all I don't expect it will affect performance all that much if any. All I want to do right now is finish it some time before the end of the century. :-) ---- icrashrc wrote: ============ We tested to a 5 g positive, 3 g negative load and all the tank supports did was laugh at our attempts. There's really no possibility of the mounting tubes bending. The only way for the tank to get lower would be for the perimeter of the fuselage to collapse. The way the tank braces are made makes even this very unlikely. I may have a couple better pictures of the setup. If so I'll post them in the next few days. Also, remember the factory setup puts 12 gallons of fuel on those tubes WITHOUT stiffening the tubes as we have. Scott captainron1(at)cox.net wrote: > I like your design, its simpler than mine. I certainly think you ought to run another lateral brace with a support base off the tail boom. Your wood support as temporary as it is right now should be used with some alteration to be the base on the tail boom to distribute the load. > If I remember (gotta fly up to PHX today) when I come back I'll scribble something down as an idea for you to consider. But I like your design, way less plumbing than mine, about 5 gallons less total fuel than my M3X, but not often I see a need for more than 15 gallons anyway. > The short answer yes you need to brace the bottom of your tanks for sure, flight loads and the weight will bend the tubes down on the frame to where it will start contacting the control tube. > > Ron @ KFHU > ============================= > > ---- icrashrc wrote: > > ============ > > > Here's how we did it. > > http://www.ill-eagleaviation.com/fuel_tank.htm > > -------- > Scott > > www.ill-EagleAviation.com > > do not archive > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p 45368#245368 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=245526#245526 -- kugelair.com ________________________________ Message 4 _____________________________________ Time: 04:14:28 PM PST US Subject: Re: Kolb-List: Monument Valley From: zeprep251@AOL.COM ?Jim, ?? Enjoyed your company and our flight as well! Many thanks to Tom for all the rides back and forth from the campground.I owe you big time.And to any of you who have not had the pleasure of sitting around the fire with these guys and just listening,Larry could put an interesting and funny twist to reading a grocery list.He has the gift. ?? Hope all had a safe trip back to home. ???????????????????? Many thanks, Marj & Gary Aman Mk-3C 2200 Jabiru -----Original Message----- From: jimhefner Sent: Fri, 22 May 2009 5:30 pm Subject: Kolb-List: Monument Valley Here are some photos from my trip. It was good to see many familiar faces again, especially Tom and Betty Kuffel, and to meet some new ones. Always a good time. http://picasaweb.google.com/HefnerJim/20090517MonumentValleyKolbGathering# -------- Jim Hefner Tucson, AZ Do Not Archive Read this topic online here: http://forums.matronics.com/viewtopic.php?p=245003#245003 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kolb-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Kolb-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/kolb-list Browse Digests http://www.matronics.com/digest/kolb-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.