---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Sun 01/16/11: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:49 AM - Re: Pitot static port location (The Kuffels) 2. 05:50 AM - Re: zenair floats plans. (Ellery Batchelder Jr) 3. 06:01 AM - Re: Kolb/Jabiru carb overflow (Thom Riddle) 4. 06:02 AM - Re: Pitot static port location (Richard Pike) 5. 06:39 AM - Re: Re: Pitot static port location (Mike Welch) 6. 05:51 PM - Re: Pitot static port location (Dana Hague) ________________________________ Message 1 _____________________________________ Time: 01:49:23 AM PST US From: "The Kuffels" Subject: Re: Kolb-List: Pitot static port location Mike, Strongly endorse Hauck's suggestions for a static system of two side ports connected by a T. It has been a well proven industry standard for many years. To expand slightly: Put the ports as far aft on the nose cone as reasonable. You want the air at the port to be going parallel to the surface, not accelerating around a curve. << Once flying, the static ports can be calibrated by taking a tiny bit of material off the aft side of each static port, if they are pressurizing, or off the forward side of the hole if it is creating a vacuum. >> There is a simpler way of determining which way to trim the ports than airspeed error. Go to a long, level runway and make a takeoff keeping the aircraft planted on the runway as long as possible. Just before liftoff note any change in *altitude*. If the altimeter goes up you have a vacuum, if it goes down you have static pressurization. This maneuver does take some practice and should be repeated several times to be sure of correct indication. Instead of removing material you can add wedges on the other side: front side if static is high, back side if static is low. You can also buy static ports with a wedge built in. Much more professional looking than balsa wedges glued on. These you rotate to get most accurate readings. Tom Kuffel ________________________________ Message 2 _____________________________________ Time: 05:50:40 AM PST US Subject: Re: Kolb-List: zenair floats plans. From: Ellery Batchelder Jr straight floats ? if I had the money I would be interested might be in th e spring Ellery Batchelder Jr. -----Original Message----- From: Malcolm Brubaker Sent: Sat, Jan 15, 2011 6:33 pm Subject: Re: Kolb-List: zenair floats plans. at grose you would.mine atre best suted for a singleseat or firestar i have a set of aeroset floats for $5,000 Malcolm Brubaker Michigan Sport Pilot Repair LSRM-A, PPC, WS (989)513-3022 From: Ellery Batchelder Jr Sent: Sat, January 15, 2011 9:56:18 AM Subject: Re: Kolb-List: zenair floats plans. My Grosse weight is 1250 I would probably sink them Ellery Batchelder Jr. -----Original Message----- From: Malcolm Brubaker Sent: Fri, Jan 14, 2011 7:46 pm Subject: Re: Kolb-List: zenair floats plans. $2000 firm on the price they are prety nice floats i lost all my pics onth e computer so no build pics but i could take some of them they are wraped in phome and suran hanging in my hanger they are 12 ft long 950 displaceme nt w one rutter no rigging Malcolm Brubaker Michigan Sport Pilot Repair LSRM-A, PPC, WS (989)513-3022 From: "elleryweld@aol.com" Sent: Wed, January 12, 2011 7:04:50 PM Subject: RE: Kolb-List: zenair floats plans. -----Original Message----- From: "Malcolm Brubaker" Subject: Kolb-List: zenair floats plans. several years aho i sold a set of plans for the zenair floats to a Kolber can anyone rember buying a set? i lost my copy and need another mal Malcolm Brubaker Michigan Sport Pilot Repair LSRM-A, PPC, WS (989)513-3022 malcolm i am the one that got the plans for the floats from you i will see about getting a copy made up i will let you know when i have that done i think i remember where i last had them ________________________________ From: "elleryweld@aol.com" Sent: Wed, January 12, 2011 7:43:44 AM Subject: RE: Kolb-List: Air foil for cable... would it reduce drag on a cable if you was to fold a peice of vinal tape in half to leave a 3/4 inch trailing edge? let the testing begin -----Original Message----- From: "Nick Cassara" Subject: Kolb-List: Air foil for cable... Kolber's, A year or two ago someone posted drag values for parts of a Kolb, if I remember right. I was amazed at the drag values for the cables on the p; -Matt Drall=========== ======================== =========== get=_blank>http://www.matronics.com/Navigator?Kolb-List===== ======================== ====== p://forums.matronics.com ======================== blank>http://www.matronics.com/contribution========== ======================== = ======================== =========== -= - The Kolb-List Email Forum - -= Use the Matronics List Features Navigator to browse -= the many List utilities such as List Un/Subscription, -= Archive Search & Download, 7-Day Browse, Chat, FAQ, -= Photoshare, and much much more: - -= --> http://www.matronics.com/Navigator?Kolb-List - -======================== ======================== =========== -= - MATRONICS WEB FORUMS - -= Same great content also available via the Web Forums! - -= --> http://forums.matronics.com - -======================== ======================== =========== -= - List Contribution Web Site - -= Thank you for your generous support! -= -Matt Dralle, List Admin. -= --> http://www.matronics.com/contribution -======================== ======================== =========== ________________________________ Message 3 _____________________________________ Time: 06:01:23 AM PST US Subject: Kolb-List: Re: Kolb/Jabiru carb overflow From: "Thom Riddle" Chris, The spring internal to the float valve in the Bing Carb that Lynn is talking about has nothing to do with the fuel pressure being too high. The spring internal to the float valve performs a single function, to dampen/absorb the vibrations that occur in the float system on a running engine. So, different internal float valve springs perform that function slightly differently but have no effect on the fuel pressure nor the pressure between the float valve tip and the seat/orifice, nor the ability to resist the pressure applied by the fuel pump while the engine is running. Bottom line is that this internal float valve spring can be ignored in thinking about your current high pressure situation. Having a float valve with a tip in good condition is important and you've already tended to that. -------- Thom Riddle Buffalo, NY (9G0) Kolb Slingshot SS-021 Jabiru 2200A #1574 Tennessee Prop 64x32 Don't accept your dog's admiration as conclusive evidence that you are wonderful. Ann Landers Read this topic online here: http://forums.matronics.com/viewtopic.php?p=327181#327181 ________________________________ Message 4 _____________________________________ Time: 06:02:07 AM PST US Subject: Kolb-List: Re: Pitot static port location From: "Richard Pike" Boyd's drawing looks like what I am using. One is the pitot, the other is static port, both are out away from the airframe in clean air, seems to make life simpler. Worked right the first time, needed no tuning. Your results may vary... Details here: http://www.bcchapel.org/pages/0003/pg7.htm Richard Pike MKIII N420P (420ldPoops) Read this topic online here: http://forums.matronics.com/viewtopic.php?p=327182#327182 ________________________________ Message 5 _____________________________________ Time: 06:39:38 AM PST US From: Mike Welch Subject: RE: Kolb-List: Re: Pitot static port location > Boyd's drawing looks like what I am using. > Richard Pike > MKIII N420P (420ldPoops) Bro. Richard=2C Although I do agree Boyd's and your suggestion of the static inlet works well out on an extended tube=2C I would prefer to go with the type of fitting that mounts on the surface of the fuselage. But=2C thanks for your input!! At this point=2C I concede I know when I'm given good advice. John H was generous enough to offer what says worked well for him. Although I did agree=2C I was curious if a slight (unnecessary) modification would b e better. He=2C Rick G=2C and Ted K didn't think so!! (probably others=2C t oo) That's good enough for me!! I appreciate everyone's input=2C and value the advice I have been given. I think I'll go with the two=2C side fuselage=2C surface mount ports=2C no inside cabin venting=2C and 1/16" vent holes. Thanks=2C guys. Mike Welch ________________________________ Message 6 _____________________________________ Time: 05:51:11 PM PST US From: Dana Hague Subject: RE: Kolb-List: Pitot static port location Mike, I'm coming into this discussion late, sounds like you already have a plan, but I'll add my two cents: Putting ports on both sides helps to cancel out any variation as the aircraft yaws. On the bottom wouldn't be good as it'd change as AOA changes. Inside the cockpit is a bad place because the air inside is nearly always _not_ at static pressure. I built a concentric pitot/static tube, with the inner tube for the pitot and the outer one (sealed at front and back) with four holes spaced around the center for static air. Mounted on the nose such a system will give very good undisturbed static air. -Dana -- Congress shall make no law....What part of NO didn't you understand? ------------------------------------------------------------------------------------- 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.