---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Wed 06/29/16: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:05 PM - Mark-3 Classic still for Sale (KIRBY, DENNIS T NH-03 USAF AFMC AFNWC/EZS) 2. 05:09 PM - STOL question Mark 3 and Firestar (Bill Berle) 3. 07:15 PM - Re: STOL question Mark 3 and Firestar (Richard Pike) 4. 07:38 PM - Re: Firestar project for sale, $2000 (Richard Pike) 5. 08:39 PM - Noise Reduction (Rick Neilsen) ________________________________ Message 1 _____________________________________ Time: 02:05:08 PM PST US From: "KIRBY, DENNIS T NH-03 USAF AFMC AFNWC/EZS" Subject: Kolb-List: Mark-3 Classic still for Sale Kolb Friends - My Classic is still for sale. If anybody on the Kolb List is interested, here are the specifics: First flew - 2002 Total time - 340 hrs Engine - Rotax-912ul (80 hp) Powerfin 72" 3-blade prop Empty wt - 580 lbs Fuel Capacity - 12 gal Heavy-duty Landing Gear Matco 6" Tailwheel BRS (Repacked March-2016) VGs $21,000. Comes with flatbed trailer, airplane cover, and support dolly for the tail/wings. E-mail or call me for pictures and more info, if interested. Ad will go on Barnstormers next week. Dennis Kirby Sandia Park NM (505) 846-7127 ________________________________ Message 2 _____________________________________ Time: 05:09:08 PM PST US From: Bill Berle Subject: Kolb-List: STOL question Mark 3 and Firestar Since I have zero experience flying Kolbs, I desperately need the experienced pilots to answer a question. You have a stock Kolb Mark 3 (not the 3X), and a Kolb Firestar 2 sitting next to each other. Both have the SAME engine, an HKS 60HP 4 stroke. Both have the SAME weight pilot. There is NO passenger in the Mark 3. Which one has better STOL performance? Which one will get in and out of smaller strips? How much better is the smaller Firestar's handling and maneuverability? While I am building my project, I have an opportunity to purchase a flyable Firestar, and I have an opportunity to purchase a flying older Mark 3, and I have an HKS 700E engine. My desire for the airplane is 95% for off-airport STOL flying. Bill Berle www.ezflaphandle.com - safety & performance upgrade for light aircraft www.grantstar.net - winning proposals for non-profit and for-profit entities -------------------------------------------- On Mon, 6/27/16, Herb wrote: Subject: Re: Kolb-List: HKS engine To: kolb-list@matronics.com Date: Monday, June 27, 2016, 2:01 PM Good info...I will save all the comments in a word file... There may be an HKS group at yahoo ? Herb On 06/27/2016 12:52 PM, Richard Girard wrote: Herb, One thing you can check is to see if the carbs have been changed to have the needle clip in the fourth (top) groove. While it won't guarantee that the engine is a 1000 hr TBO engine, it's a good indication. Now, while you have the needle out, move the clip to the second groove to stop wasting fuel. The rationale for richening up the midrange is to protect the exhaust valve guide. A bit like shooting yourself in the foot to see if your pistol is properly sighted in. Leaning out the mixture in the midrange lowers EGT and improves fuel economy by about a gallon per hour. To protect the valve guide I premix MMO at one and a half oz. per gallon. Over 300 hours on my engine and no sign of problems. Note that the full throttle mixture is not changed by doing this. You also might want to look at the throttle linkage. The HKS comes with motorcycle style cable throttles, i.e. if the cable breaks the carb goes to idle. Rotax has the linkage parts (or the Bing Agency in Council Groves, KS) to change it over to an aircraft style cable where the throttle goes to full if the cable breaks, instead. Last, to protect the gear box, always cool the engine to below 250 degrees before shut down. It's a really great engine. Rick Girard On Mon, Jun 27, 2016 at 12:25 PM, Herb wrote: --> Kolb-List message posted by: Herb Thanks Larry I will put some hours on the plane this summer....but likely will continue to look for a Firestar 1.... right...the engine is a keeper.... and as I said...that is why I bought the plane... Now to get it from Michigan to South Cent. Ky... Spending the day replacing rotors,calipers and pads on rear of my Jeep Grand Cherokee..next onto the trailer to grease bearings, fix wiring and replace two of the 4 tires... always something!! Herb On 06/27/2016 11:20 AM, Larry Cottrell wrote: I can only tell you what I think, not prove. I believe that the extended rebuild time was more through experience with the engines rather than any improvement of them. I know that my rebuild time went up without any one doing any thing to improve them. Jerry @ Greensky could give you the definitive answer, and he is a good guy! I would also think that you would only have to enter the change in the log book and fly off a probationary period. Personally I would not sell the HKS with the plane, by all means put it on the plane that you want to keep. Three gallons per hour, increase in speed, range and quiet. Put a two blade warp on it however. I ruined one of the three blade IVO trying to put enough twist in it to get the right rpm. Its also very nice not having to mix oil with the gas. I personally am not going to send an engine in for a rebuild when it is performing as it should. I am willing to take the risk. I don't care what the company feels would reduce their liability. Larry ========== -List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?Kolb-List ========== FORUMS - eferrer" target="_blank">http://forums.matronics.com ========== WIKI - errer" target="_blank">http://wiki.matronics.com ========== b Site - -Matt Dralle, List Admin. rel="noreferrer" target="_blank">http://www.matronics.com/contribution ========== -- Blessed are the cracked, for they shall let in the light. Groucho Marx -- "Masculine republics give way to feminine democracies, and feminine democracies give way to tyranny." Aristotle ________________________________ Message 3 _____________________________________ Time: 07:15:48 PM PST US Subject: Kolb-List: Re: STOL question Mark 3 and Firestar From: "Richard Pike" Since I have a MKIII and a FSII (not mine, but I get to fly it) both out behind the house at the strip, and both have identical 582's with identical props, I can offer a little bit of insight. STOL performance: the FSII is a bit lighter and so it tends to accelerate and climb out a bit better. The MKIII has flaps which help it get into tight places a bit easier. Handling and maneuverability is a function of fine tuning the aileron bell crank lengths to adjust control pressure. Once we got that sorted out, there is not a whole lot of difference. Both are very agile. I would probably have to go fly them both back to back to be able to really have a definite answer. -------- Richard Pike Kolb MKIII N420P (420ldPoops) Kingsport, TN 3TN0 Would you consider yourself to be a good person? https://www.youtube.com/watch?v=VWcDXT6pH7A Read this topic online here: http://forums.matronics.com/viewtopic.php?p=457543#457543 ________________________________ Message 4 _____________________________________ Time: 07:38:07 PM PST US Subject: Kolb-List: Re: Firestar project for sale, $2000 From: "Richard Pike" Since it never sold and the price came down a bit, went ahead and bought this today. I guess I needed a project, and building a Firestar cage from scratch would certainly qualify.... The goal is make it Part 103 legal. Might try and swap out the 447 for a good 277, or one of the new Paramotors, and get that weight down. Who knows? Ought to be fun. -------- Richard Pike Kolb MKIII N420P (420ldPoops) Kingsport, TN 3TN0 Would you consider yourself to be a good person? https://www.youtube.com/watch?v=VWcDXT6pH7A Read this topic online here: http://forums.matronics.com/viewtopic.php?p=457544#457544 ________________________________ Message 5 _____________________________________ Time: 08:39:12 PM PST US From: Rick Neilsen Subject: Kolb-List: Noise Reduction We had a discussion a while ago about ways to reduce noise in our Kolbs. I just flew tonight and tried to evaluate how quiet it is now with my current headsets. I fly with Bose QC-20 noise canceling ear buds under my Sigtronics over the ear headset with the Headset noise canceling kit. I plug my Bose ear buds into my intercom to hear and my Sigronics microphone into my intercom to speak. At cruise it is like sitting in my living room with a truck idling out side the house. I can hear the low tones of the engine in the back ground but I can hear voices on the radio at normal indoor volumes. When I talk, the intercom opens the microphone so I can hear more noise till the squelch cuts it off. When I started the engine tonight I had the Bose ear buds in my ears but turned off so I could hear the engine sounds clearly. Then I turned on the Bose noise canceling and that cut the idle engine noise to a reasonable level. Then I put the Sigtronics headset on with the Sigtronics noise canceling off. This cut out most of the high frequency noise. Then I turned on the Sigtronics noise canceling kit. Not much change. In the air with my big VW turns 3200 RPM at app 60% cruise power. If I turn the Sigtronics noise canceling kit off I can hear the engine sounds better so I turn if off from time to time to check the health of the engine. My engine turns only 3600 at full power (it is loud!) so most of the noise is lower frequency which noise canceling does a pretty good job of canceling. Rotax engines turn more RPMs creating a higher frequency noise which noise canceling doesn't work as well to cancel. My understanding is that higher frequencies are easier to reduce with passive aviation head sets but I don't know for sure. I other words I don't know how well my setup will work for you. Anyway it sure is nice not having my old ears ringing after every flight. Rick Neilsen Redrive VW Powered MKIIIC ------------------------------------------------------------------------------------- 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.