---------------------------------------------------------- Zenith701801-List Digest Archive --- Total Messages Posted Wed 06/11/08: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:41 AM - Yaw Left in the Flare (george.mueller@aurora.org) 2. 06:52 AM - Re: Left Turning Tendency in the Flare (Paul Tipton) 3. 11:13 AM - Re: Left Turning Tendency in the Flare (Terry Phillips) 4. 12:11 PM - Re: [Probable Spam] Re: Left Turning Tendency in the Flare (LarryMcFarland) 5. 01:57 PM - 801 Landing Light (Coloradodan) 6. 02:22 PM - Re: Where you guys buying your transponders.Boy they're expensiv (Coloradodan) 7. 04:06 PM - Re: 801 Landing Light (n801bh@netzero.com) 8. 06:12 PM - Re: 801 Landing Light (Coloradodan) 9. 07:33 PM - Fuel Systems (carl) ________________________________ Message 1 _____________________________________ Time: 06:41:09 AM PST US Subject: Zenith701801-List: Yaw Left in the Flare From: george.mueller@aurora.org I am interested in the left turning tendency in the flare. I think Doug might be on to something when he talks about the gear and a weight asymmetry. I am wondering if the left turning tendency happens when there is just a pilot on board (weight on the left wheel). As an experiment, someone might try a few landings flying from the right side. Does it yaw right then? But be careful because you won't have any brakes. Maybe I will try to get my ex-wife to stand in the middle of the runway when I land and do some filming. George in Milwaukee N701GM 912UL 27hours ________________________________ Message 2 _____________________________________ Time: 06:52:46 AM PST US From: "Paul Tipton" Subject: Re: Zenith701801-List: Left Turning Tendency in the Flare I had one of those "left turn tendencies" as well in a strong cross wind. I found my problem is with the front wheel tied to the rudder inputs... you have to remember to neutralize that at touchdown otherwise you just follow where your front wheel is pointin'. Paul Tipton 321PT ________________________________ Message 3 _____________________________________ Time: 11:13:33 AM PST US From: Terry Phillips Subject: Re: Zenith701801-List: Left Turning Tendency in the Flare Interesting thought, Paul. This is a concern that I have had about my 601XL, born of the simulated "flying" that I've done with X-Plane. If I set up the simulation in a C-172 with a strong (say 20 or 25 kt crosswind from the right), the tail wants to weather-vane, turning the plane into the wind. I cannot taxi in a straight line without a lot of left rudder. But, if my nose wheel is linked to the rudder, then I'll turn the nose wheel to the left, and it will want to steer me to the left. The question is whether, in the 601XL (or 701), the rudder requirement and the nose wheel steering can be balanced to allow one to steer in a straight line. I'm intrigued by the steering mod used by Larry: http://www.skyhawg.com/petals.html Has anyone else tried this mod? How did it work? Any effect on the landing turn tendencies? Terry At 08:52 AM 6/11/2008 -0500, you wrote: >I had one of those "left turn tendencies" as well in a strong cross >wind. I found my problem is with the front wheel tied to the rudder >inputs... you have to remember to neutralize that at touchdown otherwise >you just follow where your front wheel is pointin'. >Paul Tipton >321PT Terry Phillips ttp44~at~rkymtn.net Corvallis MT 601XL/Jab 3300 s .. l .. o .. o .. w build kit - Tail, flaps, & ailerons are done; working on the wings http://www.mykitlog.com/N47TP/ ________________________________ Message 4 _____________________________________ Time: 12:11:19 PM PST US From: LarryMcFarland Subject: Re: [Probable Spam] Re: Zenith701801-List: Left Turning Tendency in the Flare Hi guys, I doubt the springs would help to align the wheel if, while landing, you were still not centered. In a smooth landing, even the main gear slides a bit before gripping the concrete. The nose gear lowers much later and could still be misaligned enough for the springs to aggravate the misalignment and swing the aircraft further out, throwing you off the runway. I prefer the solid connection that greases the nose gear and adjusts it only once due to positive steering. Try it in your little kids red wagon first and see what happens. Larry McFarland at www.macsmachine.com Terry Phillips wrote: > > > Interesting thought, Paul. > > This is a concern that I have had about my 601XL, born of the > simulated "flying" that I've done with X-Plane. If I set up the > simulation in a C-172 with a strong (say 20 or 25 kt crosswind from > the right), the tail wants to weather-vane, turning the plane into the > wind. I cannot taxi in a straight line without a lot of left rudder. > But, if my nose wheel is linked to the rudder, then I'll turn the nose > wheel to the left, and it will want to steer me to the left. The > question is whether, in the 601XL (or 701), the rudder requirement and > the nose wheel steering can be balanced to allow one to steer in a > straight line. I'm intrigued by the steering mod used by Larry: > > http://www.skyhawg.com/petals.html > > Has anyone else tried this mod? How did it work? Any effect on the > landing turn tendencies? > > Terry > > > At 08:52 AM 6/11/2008 -0500, you wrote: >> I had one of those "left turn tendencies" as well in a strong cross >> wind. I found my problem is with the front wheel tied to the rudder >> inputs... you have to remember to neutralize that at touchdown >> otherwise you just follow where your front wheel is pointin'. >> Paul Tipton >> 321PT > ________________________________ Message 5 _____________________________________ Time: 01:57:53 PM PST US Subject: Zenith701801-List: 801 Landing Light From: "Coloradodan" Any words of wisdom on landing light placement for the 801? -------- Don't go looking for happiness...we'll find you. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=187441#187441 ________________________________ Message 6 _____________________________________ Time: 02:22:18 PM PST US Subject: Zenith701801-List: Re: Where you guys buying your transponders.Boy they're expensiv From: "Coloradodan" Try this guy Mike @: mike(at)ferrer-aviation.com He seems to be a good guy he's on the RV forums I'm getting the whole set up from him for my 801. Dan -------- Don't go looking for happiness...we'll find you. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=187444#187444 ________________________________ Message 7 _____________________________________ Time: 04:06:57 PM PST US From: "n801bh@netzero.com" Subject: Re: Zenith701801-List: 801 Landing Light On my 801 I fabricated an aluminum plate the sandwiches between the fron t gear leg and the fork. This is the place I attach my tow bar to and th e top surface is where I mounted my landing light. A 3" round spot beam, I took out the 55 watt halogen bulb and replaced it with a 130 watt rac ing one. Works good for me.. I did see an 801 at OSH, I think it was La rry Landucci',. He mounted his on the front of the landing gear just inb oard of where it attaches to the brackets. he used two lights, the littl e oval ones. Bottom of the fuselage will shade the light from the pilots eyes and cast a nice pattern under and out in front of the plane. If I had to do mine over again I probably do it his way... Ben Haas N801BH www.haaspowerair.com -- "Coloradodan" wrote: com> Any words of wisdom on landing light placement for the 801? -------- Don't go looking for happiness...we'll find you. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=187441#187441 ======================== =========== ======================== =========== ======================== =========== ======================== =========== ____________________________________________________________ Fly in style. Click here for information on private jets. http://thirdpartyoffers.netzero.net/TGL2241/fc/Ioyw6i4uH1DULfEqE6YQYSjoh 8ulUhTuTODzQyJQ1BzwDlcA8bam2O/ ________________________________ Message 8 _____________________________________ Time: 06:12:13 PM PST US Subject: Zenith701801-List: Re: 801 Landing Light From: "Coloradodan" Thanks Ben. Do you have any up close and personal shots of your mount. Super sharp plane by the way. Dan -------- Don't go looking for happiness...we'll find you. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=187474#187474 ________________________________ Message 9 _____________________________________ Time: 07:33:39 PM PST US From: "carl" Subject: Zenith701801-List: Fuel Systems Since 1995 I fly a plan built 701 with a R912 and kit built Z 950 amphib floats. I have 490 hrs on wheel, skis, and floats. For my needs the 701 has been a great aircraft, given me much pleasure, both while building and flying. I made a number of modifications while building and over the years added others, some cosmetic, others I consider essential for my particular use and safety. A number of these were to the fuel system which has been the subject of discussion on this list recently. Originally I had the large collector/nose tank and two optional 22 litre wing tanks feeding parallel lines in the engine compartment.The main line fed through the engine pump, the emergency through an electric boost pump. They had filters and met at a cross at the top rear of the engine to feed the carbs. This was a popular and common configuration in the mid 90s. Except for minor feed issues from the wing tanks this system worked well. However, even with the battery at the extreme rear, the CofG was too far forward making power-off landings challenging and with the addition of floats dangerous. In addition I was not trilled with sharing the cockpit with 30+ litres of fuel.Hence one of my first major mod was getting rid of the nose tank and moving the battery forward to the firewall. To feed all the wing fuel safely I added a collector to the back of the baggage compartment. The shape of the collector is important. First the tank only holds 8.5 litres and is high and narrow so when it starts to empty the two fuel level warning switches at the top activate promptly to announce 30 minutes fuel left. To enhance this feature the warning switches are located in a ridge across the top. The bottom of the tank is conically shaped to form a sump/gascolator connected to a drain on the bottom of the fuselage. The fuel feed with a finger screen attached is 2"off the bottom to minimize picking up debris/water. It uncover with about 1/2 litre remaining in the collector. The front of the tank has the wing feed connection and a sight gage with a black cork float to monitor the depletion of the last 8 litres available. Finally the top ridge has one of the warning switches (the other is on the right top side) and the connection for the vent which connects to the top of the right wing tank. (I've attached a couple of photos of the tank and its location). Management is simple. Fuelling is done over the wing; I usually only use the right tank. Additional ground checks are to start with the wing tanks OFF and check the low fuel warning light operation. It comes ON in about 3-4 minutes after start. I then turn one wing tank ON and confirm it is feeding (low fuel warning goes out) and visually check the collector is full before T.O. In smooth flight the low level warning activates pretty sharply when a wing tank empties. In rough air it will start to flash 20 or so minutes before it comes ON steady. In a steep descent while feeding a low wing tank it will come ON within 30 seconds indicating an interrupted feed. This system has worked well for me and friends that have copied it. I am confident flying down to a couple of litres (1/2Gal) if need be without danger of interrupting the feed. I'll tell you about a more recent mod to my fuel system due to the increasing amount of Ethanol in our mogas here in the "land of the freeze".I'll save that for my next post. Also att pic of my a/c 2006. Smooth landings. 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