---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Wed 05/09/12: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:12 AM - Re: Firestar rebuild (Richard Pike) 2. 08:05 AM - Re: Re: Firestar rebuild (william sullivan) 3. 11:15 AM - Pitot tubes and air speed Plus Wind on the Alvord (Larry Cottrell) 4. 01:15 PM - Re: Flying Bryce canyon and Monument Valley - Knowhow? (TheWanderingWench) 5. 01:57 PM - Re: Pitot tubes and air speed Plus Wind on the Alvord (Rick Neilsen) 6. 02:18 PM - Re: Pitot tubes and air speed Plus Wind on the Alvord (Larry Cottrell) 7. 05:21 PM - Re: 447 fuel pump firefly (henry.voris) ________________________________ Message 1 _____________________________________ Time: 07:12:15 AM PST US Subject: Kolb-List: Re: Firestar rebuild From: "Richard Pike" If it used to turn up to 6,000 or so and now it turns only 5,100 your problem is not the prop. Leave the prop alone and look for something else. Is it a CDI 447 or points? If you have points, check them. After this long, might not be a bad idea to do a crankcase pressure check. Or look for mud daubers in the muffler.... Taking pitch out of the prop is simply adjusting the prop to accommodate reduced horsepower. -------- Richard Pike Kolb MKIII N420P (420ldPoops) richard (at) bcchapel(dot)org Kingsport, TN 3TN0 Now faith is the substance of things hoped for, the evidence of things not seen. Hebrews 11:1 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=372689#372689 ________________________________ Message 2 _____________________________________ Time: 08:05:48 AM PST US From: william sullivan Subject: Re: Kolb-List: Re: Firestar rebuild - Richard- good point.- I'll start with the carb adjustments.- I have n't started it since putting a kit in.- I'm not touching it until I get t he new parts from JBM.- Could it be a leak in the carb boot?- New one c oming. --- On Wed, 5/9/12, Richard Pike wrote: From: Richard Pike Subject: Kolb-List: Re: Firestar rebuild If it used to turn up to 6,000 or so and now it turns only 5,100 your probl em is not the prop. Leave the prop alone and look for something else. Is it a CDI 447 or points? If you have points, check them. After this long, migh t not be a bad idea to do a crankcase pressure check. Or look for mud daube rs in the muffler.... Taking pitch out of the prop is simply adjusting the prop to accommodate re duced horsepower. -------- Richard Pike Kolb MKIII N420P (420ldPoops) richard (at) bcchapel(dot)org Kingsport, TN 3TN0 Now faith is the substance of things hoped for, the evidence of things not seen. Hebrews 11:1 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=372689#372689 le, List Admin. ________________________________ Message 3 _____________________________________ Time: 11:15:04 AM PST US Subject: Kolb-List: Pitot tubes and air speed Plus Wind on the Alvord From: Larry Cottrell You may remember that I posted an email about the difference made in indicated airspeed due to the angle of cut on the pitot tube some time ago. To recap the idea came from John H about cutting the pitot tube at an angle to allow a correct reading when landing in a three point stance. I thought the idea had merit, and cut mine at about a 20 degree angle. I found that angle was too much and lowered my ASI reading by about 10 MPH. I decided that I would decrease the angle to see if that would better reflect what I see on my GPS. I cut it to about 40 degrees this morning and went for a flight to the Alvord and found that it read within about 2 MPH of what I was seeing on my GPS. Much better, much nicer. My conclusion is that your ASI can be adjusted by how much air pressure you allow into your pitot tube. Perfectly round uncut tube allows the least airpressure due to the overall smaller size of the opening. Longer the angle, more opening to push air into the tube. Of course I could be wrong about the airpressure, but I am not wrong that the angle affects the reading on your ASI. Now of course I have a commercial static tube fitting mounted on the side of my plane. If your ASI is not reading correctly, give it a try. If you don't like it you can always cut it back to square and not lose more than 1/4 inch off the overall length. As I said I visited the Alvord Desert this morning. We have had a greatly reduced rain fall here in the High Desert this fall. So far here at the house we have only had 3.25 inches of rain so far since November. That may seem insignificant to most of you, but it is pretty close to normal here. The Water this spring is about where it was last year in September. After I made a circle of the Lake bed and was heading home I saw that someone had tossed out a tire on the Lake bed. After cussing pilgrims in general I noticed that there was visible evidence of the wind this spring. Larry -- *If you forward this email, or any part of it, please remove my email address before sending.* ________________________________ Message 4 _____________________________________ Time: 01:15:04 PM PST US From: TheWanderingWench Subject: Re: Kolb-List: Flying Bryce canyon and Monument Valley - Knowhow? Hi Mahesh -=0A=0AI haven't seen any responses to your questions, and althou gh my experience is limited to three flights to Monument Valley and Bruce C anyon, I'll share my experiences. As you know, I was flying a Maxair Drifte r, not a Kolb, but I was flying with a 503, so there is one area of similar ity. Depending on the flight, I was flying with either a Thundergull with a 503, a Carrera with a 503, and a Skyraider with a 447.=0A=0A=0A1. At Bryce , both I and my fellow pilots used up almost the entire runway taking off. However, we were taking off in the afternoons and evenings. If you take off in the cool of the morning you probably would have an easier time climbing . After rotation, I was climbing VERY slowly, at about 200'/minute. (I usua lly climb out @ 900-1000'/minute.) Happily, Bryce is on a plateau and there was plenty of time to gain altitude before the canyons.=0A=0A2. Land only at airstrips in Monument Valley. There are a number of high plateaus that a re tempting, but Monument Valley is Indian land, not federal park or monume nt, and the tribe doesn't want you landing off-field.-=0A=0A3. Both Bryce and Monument Valley are spectacular flying!- =0A=0A=0A4. When are you pl anning on going? I was always there the third week in May, and by then it w as already hot...once almost suffocatingly so. There can also be a lot of w ind, so flying in the early morning and evenings worked best. Of my three f lights to Bryce and Monument Valley, only once was it calm enough to fly du ring the day.- I remember thinking that I'd never want to fly there betwe en June and September, due to even greater heat and what that would do to d ensity altitude.=0A=0AHave a great trip.=0A=0AArty=0A=0A-=0Awww.LessonsFr omTheEdge.com/oshkosh/=0A=0A=0A"Life's a daring adventure or nothing"=0AHel en Keller=0A=0A=0A"I refuse to tip toe through life just to arrive safely a t death."=0A=0A=0A________________________________=0A From: miyer2u =0ATo: kolb-list@matronics.com =0ASent: Monday, May 7, 2012 7:0 9 PM=0ASubject: Kolb-List: Flying Bryce canyon and Monument Valley - Knowho =0AJohn/Team,=0AI am trailering my Kolb to fly these sites and wanted some knowhow!=0ASince many of you have flown these sites, I wanted to understand any caution that comes to your minds. =0ABryce is located at almost 7600 f eet so did you find a great difference with a firestar climbing out with a Rotax 503? Is it underpowered for take off in such high elevations with hig h density altitude?=0AAlso at monument valley, any cautions and wanted to k now the service ceiling for a Firestar-2.=0A=0AThanks in advance!=0AMahesh =0AFS-2=0A=0A=0A=0A=0ARead this topic online here:=0A=0Ahttp://forums.matro =- - - - - - - - - - - - - - - -Matt Dralle ======== ________________________________ Message 5 _____________________________________ Time: 01:57:22 PM PST US Subject: Re: Kolb-List: Pitot tubes and air speed Plus Wind on the Alvord From: Rick Neilsen Larry As always great photos and the videos you share with us are wonderful. The photo of the tire is impressive but I suspect that the tire was floating during most of its journey. do not archive Rick Neilsen Redrive VW Powered MKIIIC On Wed, May 9, 2012 at 2:14 PM, Larry Cottrell wrote: > You may remember that I posted an email about the difference made in > indicated airspeed due to the angle of cut on the pitot tube some time ago. > To recap the idea came from John H about cutting the pitot tube at an angle > to allow a correct reading when landing in a three point stance. I thought > the idea had merit, and cut mine at about a 20 degree angle. I found that > angle was too much and lowered my ASI reading by about 10 MPH. I decided > that I would decrease the angle to see if that would better reflect what I > see on my GPS. I cut it to about 40 degrees this morning and went for a > flight to the Alvord and found that it read within about 2 MPH of what I > was seeing on my GPS. Much better, much nicer. > > My conclusion is that your ASI can be adjusted by how much air pressure > you allow into your pitot tube. Perfectly round uncut tube allows the least > airpressure due to the overall smaller size of the opening. Longer the > angle, more opening to push air into the tube. Of course I could be wrong > about the airpressure, but I am not wrong that the angle affects the > reading on your ASI. Now of course I have a commercial static tube fitting > mounted on the side of my plane. > > If your ASI is not reading correctly, give it a try. If you don't like it > you can always cut it back to square and not lose more than 1/4 inch off > the overall length. > > As I said I visited the Alvord Desert this morning. We have had a greatly > reduced rain fall here in the High Desert this fall. So far here at the > house we have only had 3.25 inches of rain so far since November. That may > seem insignificant to most of you, but it is pretty close to normal here. > The Water this spring is about where it was last year in September. After I > made a circle of the Lake bed and was heading home I saw that someone had > tossed out a tire on the Lake bed. After cussing pilgrims in general I > noticed that there was visible evidence of the wind this spring. > > Larry > > -- > *If you forward this email, or any part of it, please remove my email > address before sending.* > > ________________________________ Message 6 _____________________________________ Time: 02:18:12 PM PST US Subject: Re: Kolb-List: Pitot tubes and air speed Plus Wind on the Alvord From: Larry Cottrell I wouldn't bet on the floating part at all. If you blow it up and look at it closely You will see that there is mud pushed up for about 10 inches on either side. Here at the house, 36 miles away, we had several days with wind as high as 69 MPH for an extended period. Larry On Wed, May 9, 2012 at 2:56 PM, Rick Neilsen wrote: > Larry > > As always great photos and the videos you share with us are wonderful. > > The photo of the tire is impressive but I suspect that the tire was > floating during most of its journey. > > do not archive > > Rick Neilsen > * > -- *If you forward this email, or any part of it, please remove my email address before sending.* ________________________________ Message 7 _____________________________________ Time: 05:21:51 PM PST US Subject: Kolb-List: Re: 447 fuel pump firefly From: "henry.voris" 09may12 Sir, Attached is a photo showing how the impulse pump is attached on FireFly Five-Charlie-Bravo... I also have a Facet Pump (electric), in line, closer to the fuel tank. Good luck. Aloha, Henry -------- Henry Firefly Five-Charlie-Bravo Do Not Archive Read this topic online here: http://forums.matronics.com/viewtopic.php?p=372716#372716 Attachments: http://forums.matronics.com//files/fuel_pump_869.jpg ------------------------------------------------------------------------------------- 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.