---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Sun 10/24/04: 16 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:53 AM - Re: Running a 912S without a prop? (Rusty) 2. 07:06 AM - Re: Lexan Glue (Giovanni Day) 3. 09:31 AM - Re: Lexan Glue (possums) 4. 11:10 AM - Glue (Mike Pierzina) 5. 11:19 AM - Vibration (tom sabean) 6. 11:27 AM - Lexan Glue Wrap-Up (Beauford) 7. 11:54 AM - Re: MKIII Flight Report (touch down speeds) (Silver Fern Microlights Ltd) 8. 12:17 PM - Re: Glue (Beauford) 9. 12:37 PM - Re: Vibration (John Hauck) 10. 12:39 PM - Re: MKIII Flight Report (touch down speeds) (John Hauck) 11. 01:10 PM - Re: MKIII Flight Report (touch down speeds) (Silver Fern Microlights Ltd) 12. 01:46 PM - Re: Lexan Glue Wrap-Up (DAquaNut@aol.com) 13. 02:04 PM - Re: MKIII Flight Report (touch down speeds) (John Abbott) 14. 06:19 PM - Re: Running a 912S without a prop? (Robert Laird) 15. 06:30 PM - Re: Running a 912S without a prop? (Rusty) 16. 07:16 PM - Re: Running a 912S without a prop? (Robert Laird) ________________________________ Message 1 _____________________________________ Time: 06:53:06 AM PST US From: "Rusty" <13brv3c@bellsouth.net> Subject: RE: Kolb-List: Running a 912S without a prop? --> Kolb-List message posted by: "Rusty" <13brv3c@bellsouth.net> IIRC from the last 912 school I attended, not recommended to run 912, especially 912ULS, without the prop, which is an integral part of the flywheel "effect" system. If the engine is properly pickled for storage, there is no need to run it periodically. john h --------------------- Thanks John. I was guessing that it wasn't a good idea. I can't see how it would hurt the engine, but I'm afraid it would damage the gearbox. On the other hand, we do this all the time with the Mazda engines and planetary redrives. I guess what I need then is a 2 blade prop. Has anyone ever seen a 912ULS with a 2 blade prop? I need to call IVO and Warp, and see what they have to say. Thanks, Rusty ________________________________ Message 2 _____________________________________ Time: 07:06:27 AM PST US From: "Giovanni Day" Subject: RE: Kolb-List: Lexan Glue --> Kolb-List message posted by: "Giovanni Day" Beauford, I have used methlenechloride (sp?) in the past. It is a very strong solvent and will weld the two together. I used it to make fish tanks. I was a Murray State University biology/chemistry student at the time. Not sure where else to get it. Giovanni MKIII/912 80566 14hrs Do not archive -----Original Message----- From: owner-kolb-list-server@matronics.com [mailto:owner-kolb-list-server@matronics.com] On Behalf Of Beauford Subject: Kolb-List: Lexan Glue --> Kolb-List message posted by: "Beauford" Kolbers... What are some suitable glues for fixing lexan to lexan...? Will acetone work? I'm trying to reinforce windshield attachment points... Thankee... Beauford FF #076 Brandon FL == == == == ________________________________ Message 3 _____________________________________ Time: 09:31:24 AM PST US From: possums Subject: RE: Kolb-List: Lexan Glue --> Kolb-List message posted by: possums At 10:06 AM 10/24/2004, you wrote: >--> Kolb-List message posted by: "Giovanni Day" > >Beauford, > >I have used methlenechloride (sp?) in the past. It is a very strong >solvent and will weld the two together. I used it to make fish tanks. I >was a Murray State University biology/chemistry student at the time. Not >sure where else to get it. > >Giovanni >MKIII/912 80566 14hrs >Do not archive Most any plastic company that sells Lexan or polycarbonate sheets also sells the glue or "solvent". It's clear and has the consistence of acetone. The bottle comes with a syringe like tube on the end. ________________________________ Message 4 _____________________________________ Time: 11:10:04 AM PST US From: "Mike Pierzina" Subject: Kolb-List: Glue --> Kolb-List message posted by: "Mike Pierzina" Hey Butcher, I would think " Super Glue" would work... I use "Super Jet" ( medium viscosity )....any Hobby store... I usually buy medium...If I want it THINNER , I use acetone to cut it. Gotta Fly... Mike in MN SNIP<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> --> Kolb-List message posted by: "Beauford" Kolbers... What are some suitable glues for fixing lexan to lexan...? Will acetone work? I'm trying to reinforce windshield attachment points... Thankee... Beauford FF #076 Brandon FL My Web Site: http://www.geocities.com/planecrazzzy/Planecrazzzy.html Sometimes you just have to take the leap and build your wings on the way down... Gotta Fly... -- ________________________________ Message 5 _____________________________________ Time: 11:19:48 AM PST US From: "tom sabean" Subject: Kolb-List: Vibration --> Kolb-List message posted by: "tom sabean" Been test flying my Xtra for about 5 hours now. Things are progressing well but I still have some fine tuning to do. Originally had a 3 blade Ivo on the 912 but was getting a noticeable vibration from 4000rpm all the way up to 5000rpm. Smooth above and below that range. Switched to a 3 blade 70" taper tip Warp Drive and it is smoother but there is still a vibration around 4500rpm. Vibration is not apparent during full power run on the ground. Anyone else had this problem? Thanks, Tom Sabean ________________________________ Message 6 _____________________________________ Time: 11:27:35 AM PST US From: "Beauford" Subject: Kolb-List: Lexan Glue Wrap-Up --> Kolb-List message posted by: "Beauford" Possum, Giovanni, Brother Pike and all... Thank for the responses about lexan glue... In the Kolb List spirit, I provide the following information which was gained via your e-mails, some daring in-house experimentation and utterly exhausting internet research: 1. Forget about Shoe Goo on lexan... after it sets up, it readily rolls into soft, booger-like little pills and wipes right off with no visible effect on the plastic...satisfying, in a primordial sort of way, but of no real help in fixing the windshield... 2. Acetone, MEK and lacquer thinner really screw up the surface, but have zero bonding/welding effect 3. As Giovanni said, and Google research verifies, the weapon of choice is clearly Methylene Chloride, but unfortunately it apparently has roughly the same effect on people as VX nerve agent... it is dispensed only through specialized outlets, evidently by individuals dressed in rubber suits wearing overpressure masks...and absolutely positively most assuredly cannot be obtained casually on weekends from Home Depot by saggy-bellied goobers in GI tee shirts and jeans.... Reading the EPA warnings, you'd want to carry it in a hermetically sealed box, preferably on the exterior of your vehicle...and consider carrying a live canary in a cage on the front seat next to you... 4. A very hot clothes iron works well to smooth and de-burr the edges of freshly cut lexan... supposedly, the iron does not leave the microscopic cracks that emery cloth or Dremel wheels apparently tend to do (obtained similar info from several hobby pages, there might be some truth in it) Tomorrow when the plastics supply house over in Brandon opens, I'll go get some ME glue in a tube, as John suggested. Meantime, i'm goin' back out in the garage and roll some more of that Shoe Goo... Worth what ye paid fer it... Beauford FF#076 Brandon FL Do Not Archive ----- Original Message ----- From: "possums" Subject: RE: Kolb-List: Lexan Glue > --> Kolb-List message posted by: possums > > At 10:06 AM 10/24/2004, you wrote: >>--> Kolb-List message posted by: "Giovanni Day" >> >>Beauford, >> >>I have used methlenechloride (sp?) in the past. It is a very strong >>solvent and will weld the two together. I used it to make fish tanks. I >>was a Murray State University biology/chemistry student at the time. Not >>sure where else to get it. >> >>Giovanni >>MKIII/912 80566 14hrs >>Do not archive > > Most any plastic company that sells Lexan or polycarbonate sheets > also sells the glue or "solvent". It's clear and has the consistence of > acetone. The bottle comes with a syringe like tube on the end. > > > ________________________________ Message 7 _____________________________________ Time: 11:54:25 AM PST US From: "Silver Fern Microlights Ltd" Subject: Re: Kolb-List: MKIII Flight Report (touch down speeds) --> Kolb-List message posted by: "Silver Fern Microlights Ltd" Hi John I see that you can carry 20 gal of fuel, what tanks do you have?. Kiwi ----- Original Message ----- From: "John Hauck" Subject: Kolb-List: MKIII Flight Report (touch down speeds) > --> Kolb-List message posted by: "John Hauck" > > Hi Gang: > > My turn to do a flight report. > > There are some "pig trail two track" roads through the cotton fields > just west of Speigner Lake and Draper Prison. Been using them for off > field landings since the days of the Ultrastar. > > On the way home from Wetumpka Airport, I short four landings, two to > the east and two to the west. With 10 gal fuel and pilot on board, no > cargo, I consistently touched down at 30 mph indicated. Normally, I > do not look at the ASI at touch down, but yesterday was a good day to > do it. I surprised myself when I did the first landing with my eye on > the ASI until the mains touched the ground. Right on 30 mph. Had to > go back up and do it three more times to insure I was seeing what I > was seeing. Really made me proud of my big fat old bird. She is > quite the gal. And did it with out the aid of vortex generators. > > With more than 20 gals on board this afternoon, I shot another landing > in the same place, but it was turbulent and I couldn't get settled > down enough just prior to touch down to keep an eye on the ASI. > However, it was somewhere between 30 and 35 mph. > > The slowwww landings were with 40 deg (two notches) flaps, throttle > closed, eng rpm 2,000. > > Take care, > > john h > > > ________________________________ Message 8 _____________________________________ Time: 12:17:11 PM PST US From: "Beauford" Subject: Re: Kolb-List: Glue --> Kolb-List message posted by: "Beauford" Mike... Just went out and tried two different cyanacrilate (sp) superglues I had on hand on lexan scraps... could not get either one to hold... could be my glues are too old...(everything else is...) But thanks for the input... Beauford Do Not Archive ----- Original Message ----- From: "Mike Pierzina" Subject: Kolb-List: Glue > --> Kolb-List message posted by: "Mike Pierzina" > > Hey Butcher, > I would think " Super Glue" would work... > I use "Super Jet" ( medium viscosity )....any Hobby store... > > I usually buy medium...If I want it THINNER , I use acetone to cut it. > > Gotta Fly... > Mike in MN > > > SNIP<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> > > --> Kolb-List message posted by: "Beauford" > > Kolbers... > What are some suitable glues for fixing lexan to lexan...? Will acetone > work? > I'm trying to reinforce windshield attachment points... > > Thankee... > > Beauford > FF #076 > Brandon FL > > > My Web Site: > http://www.geocities.com/planecrazzzy/Planecrazzzy.html > > > Sometimes you just have to take the leap > and build your wings on the way down... > Gotta Fly... > > > -- > > > ________________________________ Message 9 _____________________________________ Time: 12:37:55 PM PST US From: "John Hauck" Subject: Re: Kolb-List: Vibration --> Kolb-List message posted by: "John Hauck" | Switched to a 3 blade 70" taper tip Warp Drive and it is smoother but there is still a vibration around 4500rpm. Vibration is not apparent during full power run on the ground. | Anyone else had this problem? | Tom Sabean Tom S/All: I have used Warp Drive Props exclusively since Sep 1993. For the most part, Warp Drive Props do not have balance problems. However, if all two or three blades are not set at the same pitch, annoying vibrations will result. Insure all three blades are the same pitch before going any further. Next, some 912 and 912ULS engines and gearboxes will get a harmonic vibration at certain rpm as a result of loose shims in the gear box torsional vibration dampner. Insure the dampner is shimmed as tight as permissible. If you have a 912ULS engine of the older variety, prior to "slip clutch" and "high torque starter", would be a good idea to upgrade to these items. Most, if not all, vibrations in my system disappeared after upgrading to the slip clutch. What kind of prop extension are you running? A poorly built extension could add to you vibration problems. Let us know what you find out. john h ________________________________ Message 10 ____________________________________ Time: 12:39:43 PM PST US From: "John Hauck" Subject: Re: Kolb-List: MKIII Flight Report (touch down speeds) --> Kolb-List message posted by: "John Hauck" have?. | | Kiwi Hi Kiwi/All: I have been using a Jim Hauck 25 gal fuel tank since day one. Bro Jim fabricated an aluminum tank for me when we were building my MKIII Feb 1991. 25 gal ultimate, 25 gal useable. Can squeeze the last drop out of it. Take care, john h ________________________________ Message 11 ____________________________________ Time: 01:10:32 PM PST US From: "Silver Fern Microlights Ltd" Subject: Re: Kolb-List: MKIII Flight Report (touch down speeds) --> Kolb-List message posted by: "Silver Fern Microlights Ltd" Thanks John, I might have to look at doing the same on our new Xtra demonstrator or maybe fit a third tank in somewhere. Kiwi ----- Original Message ----- From: "John Hauck" Subject: Re: Kolb-List: MKIII Flight Report (touch down speeds) > --> Kolb-List message posted by: "John Hauck" > > have?. > > Hi Kiwi/All: > > I have been using a Jim Hauck 25 gal fuel tank since day one. Bro Jim > fabricated an aluminum tank for me when we were building my MKIII Feb > 1991. 25 gal ultimate, 25 gal useable. Can squeeze the last drop out > of it. > > Take care, > > john h > > > ________________________________ Message 12 ____________________________________ Time: 01:46:39 PM PST US From: DAquaNut@aol.com Subject: Re: Kolb-List: Lexan Glue Wrap-Up --> Kolb-List message posted by: DAquaNut@aol.com In a message dated 10/24/04 12:28:04 PM Central Standard Time, beauford@tampabay.rr.com writes: << Tomorrow when the plastics supply house over in Brandon opens, I'll go get some ME glue in a tube, as John suggested. Meantime, i'm goin' back out in the garage and roll some more of that Shoe Goo... Worth what ye paid fer it... Beauford FF#076 >> Beauford, I know Im late in the game, but I was in Home Depot the other day and they had some kind of glue for plastics. It said ,all, plastics. It was 2 part. The first part you put on the pieces to soften em up, then you apply the other part on them & then assemble. It might work. What about the all purpose glue for plastic pipe? Let us know the outcome, Ed(in Houston) ________________________________ Message 13 ____________________________________ Time: 02:04:18 PM PST US From: "John Abbott" Subject: Re: Kolb-List: MKIII Flight Report (touch down speeds) --> Kolb-List message posted by: "John Abbott" Kiwi, I'm building an Xtra and have been looking for way to increase the feul capacity. Do know what has been done in the past? John ----- Original Message ----- From: "Silver Fern Microlights Ltd" Subject: Re: Kolb-List: MKIII Flight Report (touch down speeds) > --> Kolb-List message posted by: "Silver Fern Microlights Ltd" > > > Thanks John, > I might have to look at doing the same on our new Xtra demonstrator or > maybe > fit a third tank in somewhere. > > Kiwi > ----- Original Message ----- > From: "John Hauck" > To: > Subject: Re: Kolb-List: MKIII Flight Report (touch down speeds) > > >> --> Kolb-List message posted by: "John Hauck" >> >> | Hi John I see that you can carry 20 gal of fuel, what tanks do you >> have?. >> | >> | Kiwi >> >> Hi Kiwi/All: >> >> I have been using a Jim Hauck 25 gal fuel tank since day one. Bro Jim >> fabricated an aluminum tank for me when we were building my MKIII Feb >> 1991. 25 gal ultimate, 25 gal useable. Can squeeze the last drop out >> of it. >> >> Take care, >> >> john h >> >> >> > > > ________________________________ Message 14 ____________________________________ Time: 06:19:10 PM PST US From: Robert Laird Subject: RE: Kolb-List: Running a 912S without a prop? --> Kolb-List message posted by: Robert Laird At 08:52 AM 10/24/2004, you wrote: >I guess what I need then is a 2 blade prop. Has anyone ever seen a 912ULS >with a 2 blade prop? I need to call IVO and Warp, and see what they have to >say. I use an Ivo Magnum 2-blade prop on my 912ULS -- Robert ________________________________ Message 15 ____________________________________ Time: 06:30:17 PM PST US From: "Rusty" <13brv3c@bellsouth.net> Subject: RE: Kolb-List: Running a 912S without a prop? --> Kolb-List message posted by: "Rusty" <13brv3c@bellsouth.net> I use an Ivo Magnum 2-blade prop on my 912ULS -- Robert ----------------------- Good to know. Are you happy with it? Thanks, Rusty ________________________________ Message 16 ____________________________________ Time: 07:16:44 PM PST US From: Robert Laird Subject: RE: Kolb-List: Running a 912S without a prop? --> Kolb-List message posted by: Robert Laird At 08:29 PM 10/24/2004, you wrote: >--> Kolb-List message posted by: "Rusty" <13brv3c@bellsouth.net> > > >I use an Ivo Magnum 2-blade prop on my 912ULS > > -- Robert >----------------------- > >Good to know. Are you happy with it? Rusty -- In a word, yes... ...but, I've also been spoiled because, on a different aircraft, I had an Arplast 3-blade prop, and those have GOT to be the best props in the world... It had the most powerful thrust I ever felt, and it was so quiet I could cruise without ear protection. But they are pricey little cusses. To be honest, though, I don't know if Arplast makes one that would be suitable for a 912ULS... I had mine mated to a Rotax 503. -- Robert