---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Thu 11/12/09: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:10 AM - Re: Trim System Question (Thom Riddle) 2. 06:16 AM - Re: Re: Trim System Question (Richard Girard) 3. 06:27 AM - Re: Re: Trim System Question (pj.ladd) 4. 12:15 PM - Re: thinner (planecrazzzy) 5. 04:40 PM - Re: Re: thinner (possums) 6. 04:58 PM - Re: Re: thinner (russ kinne) 7. 06:25 PM - Re: Re: thinner (Larry Cottrell) 8. 08:10 PM - Re: Re: thinner (possums) ________________________________ Message 1 _____________________________________ Time: 05:10:52 AM PST US Subject: Kolb-List: Re: Trim System Question From: "Thom Riddle" Richard, Pat and I and several other Kolbers have Jabiru power with no PSRU so the prop noise can get pretty onerous. My full throttle climb at Vy is at 3,000 rpm. The 64" prop means a tip speed of about 570 mph. Not Mach 1 but a good bit faster than most Rotax powered props. Pat can correct me if I'm wrong but I'm pretty sure the UK does not permit his Jabiru powered Kolb to turn the maximum the engine manufacturer allows (3,300 rpm) because of the noise regulations. -------- Thom Riddle Buffalo, NY Kolb Slingshot SS-021 Jabiru 2200A #1574 Tennessee Prop 64x31 In a country well governed, poverty is something to be ashamed of. In a country badly governed, wealth is something to be ashamed of. - Confuscious Read this topic online here: http://forums.matronics.com/viewtopic.php?p=272429#272429 ________________________________ Message 2 _____________________________________ Time: 06:16:21 AM PST US Subject: Re: Kolb-List: Re: Trim System Question From: Richard Girard Richard, Pat, I second this. My IIIC has a 582, C box with 4:1 and 3 blade 66" WD prop. My neighbor has told me I can barely be heard on downwind when I fly it low (700' instead of 1000'). My other neighbor flies a couple VW direct drive planes and can still be heard when he's out of sight. Rick Girard do not archive On Wed, Nov 11, 2009 at 8:45 PM, Richard Pike wrote: > > [quote="pj.ladd(at)btinternet.com"]The intention was to reduce noise >> > > Hi there, > > Did it? The farmer who owns the field I fly from is constantly wickering > on about the noise from the Kolb. He says it is worse that the Challenger I > used to have and that got him pretty hot under the collar. > > Noise seems to be built in with a pusher configuration. Not noise in the > cockpit, that can be dealt with by decent headphones , but the noise which > causes complaints from the neighbours. > > i cocked up a landing the other day and decided on another circuit for > practice. I am reluctant to climb out at less than full throttle so went > out at full chat and the farmer was waiting for me when i landed, looking > down his nose. Of course he flies a Cub which makes no more noise than a > sewing machine. > > Does a larger a gap between the trailing edge and the prop help? > > Pat > > > [b] > > > Pat, don't remember what engine/gearbox you are running, but recently I had > a chance to fly a MKIII with a C box on the 582, and a 3 blade Warp. The 3:1 > gearbox makes the prop noise way less than my 2.58:1 box. Also got to stand > on the ground and listen to it while someone else flew it, and it is much > quieter. Apparently prop noise is the biggie. > > Richard Pike > MKIII N420P (420ldPoops) > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=272389#272389 > > ________________________________ Message 3 _____________________________________ Time: 06:27:41 AM PST US From: "pj.ladd" Subject: Re: Kolb-List: Re: Trim System Question Pat, don't remember what engine/gearbox you are running,>> Hi Richard, I have a Jabiru with a 2 blade 157 cms dia.. I had a 503 with a 2 blade on the Challenger. Pat ________________________________ Message 4 _____________________________________ Time: 12:15:53 PM PST US Subject: Kolb-List: Re: thinner From: "planecrazzzy" It "Does" seem peaceful on the list.... .. .. Thinning the Poly...everything... .. "I" used MEK... bought locally... .. I never noticed anything wrong with using it... My Fabric job turned out great.... it's been going for over 5 years now... I thinned everything with MEK... .. .. Most places didn't carry it... But Home Depot does... .. .. Gotta Fly... Mike & "Jaz" in MN .. .. PS I plan on thinning my next project the same way... Wittman "Buttercup" .. .. .. .. -------- .. .. .. .. New Kolb Forum - No JP http://groups.yahoo.com/group/kolbaircraft/ .. Do Not Archive Read this topic online here: http://forums.matronics.com/viewtopic.php?p=272481#272481 ________________________________ Message 5 _____________________________________ Time: 04:40:22 PM PST US From: possums Subject: Re: Kolb-List: Re: thinner At 03:15 PM 11/12/2009, you wrote: > >It "Does" seem peaceful....(snip) > >Thinning the Poly...everything! >. > "I" used MEK... bought locally... >. > I never noticed anything wrong with using it...? Me neither, I use it for salad dressing - calms me down, like Beauford says, "I found that if I did NOT get at least eight daily hours of intense MEK fumes, my hands shook so badly I had difficulty pouring gin, or lighting cigars...." ________________________________ Message 6 _____________________________________ Time: 04:58:59 PM PST US From: russ kinne Subject: Re: Kolb-List: Re: thinner POSSUMS! You look even younger than I'd imagined What a credit to Kolb-dom you are! Congratulations. do not archive On Nov 12, 2009, at 7:38 PM, possums wrote: > At 03:15 PM 11/12/2009, you wrote: >> >> >> It "Does" seem peaceful....(snip) >> >> Thinning the Poly...everything! >> . >> "I" used MEK... bought locally... >> . >> I never noticed anything wrong with using it...? > > Me neither, I use it for salad dressing - calms me down, > like Beauford says, "I found that if I did NOT get at least eight > daily hours of intense MEK fumes, > my hands shook so badly I had difficulty pouring gin, or lighting > cigars...." ________________________________ Message 7 _____________________________________ Time: 06:25:52 PM PST US From: "Larry Cottrell" Subject: Re: Kolb-List: Re: thinner Is that dinner or the family pet? Larry ----- Original Message ----- From: possums To: kolb-list@matronics.com Sent: Thursday, November 12, 2009 5:38 PM Subject: Re: Kolb-List: Re: thinner At 03:15 PM 11/12/2009, you wrote: > >It "Does" seem peaceful....(snip) > >Thinning the Poly...everything! >. > "I" used MEK... bought locally... >. > I never noticed anything wrong with using it...? Me neither, I use it for salad dressing - calms me down, like Beauford says, "I found that if I did NOT get at least eight daily hours of intense MEK fumes, my hands shook so badly I had difficulty pouring gin, or lighting cigars...." ------------------------------------------------------------------------- ----- Checked by AVG - www.avg.com 11/12/09 14:33:00 ________________________________ Message 8 _____________________________________ Time: 08:10:19 PM PST US From: possums Subject: Re: Kolb-List: Re: thinner At 09:25 PM 11/12/2009, you wrote: >Is that dinner or the family pet? >Larry He ain't big enough to be dinner yet. But we will keep feeding him, like the chipmunks - maybe someday? "Possums do not harbor diseases normally found in dogs and cats, such as distemper (rabies), parvovirus, or hepatitis. All warm-blooded mammals can contract rabies, but opossums are rarely found to be rabid. Scientists believe that because the oppossum is cursed with a small brain (5 times smaller than that of a raccoon) it is protect naturally from this type of disease." The perfect Sport Pilot. 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