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JLang

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About JLang

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    Michigan
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  1. My left wing tip is about 1/2" lower than the right, with even tire pressures, and there is always a few gallon difference between the wings after sitting even a couple hours. As Tom said, uneven pressures definitely makes a difference as well. I learned this early in my ownership when I filled the tanks one evening in preparation for a long flight the next day, and had fuel stains all over the left wing in the morning.
  2. Wheel pants vibration

    So we are hopefully done with significant snow after this week here in the midwest, which means putting the main wheel pants back on. Or not. With them on I, too, usually get a noticeable vibration/flutter at cruise. Checking tire pressure is a pain. I figure it's only a matter of time before I neglect to warn a passenger and they use the fairing as a step. Sure, there is a speed benefit: maaaybe a knot. Admittedly, the plane simply looks better with them on, and this may rule the day, but for now I'm going to leave them off. Am I missing something?
  3. I have the TruTrak installed on my 2006 CTSW.  If you would like to look at the installation or take some pictures, stop by my hangar at Willow Run airport here in Michigan, near Ann Arbor.  Dick Harrison

  4. If you are by yourself, you can just use a floor jack and small block of wood just inside the wheel under the axle.
  5. Grand Canyon Corridors

    If I-FLY is similar to ForeFlight on iPad, the additional detail only shows up when you zoom in on the screen, like with the Terminal Area Charts.
  6. CTLS vs CTSW

    Several other differences, which might be of importance depending on your preference: 1) Cost. For me this ruled out the CTLS, since I could only afford the older, cheaper CTSW. 2) The CTLS has a "hat shelf" behind each seat. For cross country flight, these would be nice. I'm always trying to find more accessible space in mine when flying with a passenger. 3) The larger-screen Dynon Skyview was available on the CTLS (not sure when it was available). 4) I believe there are threads about this topic, but I believe its easier to retrofit a brighter landing light on the CTLS, if you will be flying at night. The stock halogen CTSW light is not terrible, but burns out frequently. The available LED options are not as bright. My night vision is still decent, so this is acceptable, but not ideal.
  7. Meet Cora

    I always feel like I'm missing something when reading these articles. Like Andy says, when you cut through the non-aviation jargon, you are talking about a modern aircraft flying airport to airport, minus the "self flying" part. That exists already -- they are called "airplanes" and lots of people would be happy to fly said airplane for a paying customer (aka, pilot for a charter flying company). Adding "self flying" means adding lots of new, expensive avionics and highly developed and thoroughly tested software to fly it. Since a new Cessna based largely on half-century-old technology starts at $300k, how can an all-new, cutting-edge, self-flying airplane be remotely affordable per mile for any paying customer?
  8. Cold start... again

    I installed a Tanis and it is wonderful, and it is plugged in as soon as the plane is in the hangar, but I am curious what folks use when traveling. For example, tomorrow I hope to fly north for the day, and will be parked outside in maybe 25F temps for several hours. Haul a long extension cord? My limited experience is that most parking spots are pretty far from the actual building. Tape a bunch of hand warmers to the block...?
  9. i have no direct experience with Tecnams and have heard generally good things about them, and others on this forum are more knowledgeable than me, but I will make a few points. I'm calling BS on the idea that composite wings means more turbulence sensitivity. Stiffness is an engineered result of many factors, including materials, but also geometry. If the Tecnam is less susceptible to turbulence it is because of overall design tradeoffs, not simply material choice. Other design tradeoffs are fatigue life, for which aluminum has a definite limit, unlike composite; weight; flexibility of form; and of course wing loading. Same goes for "better in crosswind landings". If so, there are tradeoffs. And I did a lot of searches of the NTSB database before buying my CTSW, and almost all the flips I saw for the CT had to do with hitting something, or "pilot error" landing mishaps. At least, not more than the others I searched. I have the less sophisticated Dynon D100 and D120 (compared to the Skyviews or Garmin 3x), and love them. Cheaper, and so far very reliable. One article I read prior to purchasing my CT is below. It compares not against the 2008, but the Sierra (and Evektor). Still, the conclusion is that the overall preference was the CT, FWIW. https://www.flightglobal.com/news/articles/flight-test-fly-off-evektor-sportstar-flight-design-ct-tecnam-sierra-sporting-heroes-200294/
  10. I decided to get a PPL instead of Light Sport, since I wanted to fly at night, but still went LSA for aircraft choice. It's the only "affordable" way get a modern airframe with modern avionics.
  11. Loud Periodic Creak While Taxiing

    I changed tires and tubes about 4mo ago, and since it was my first time it's entirely possible that special care was not taken. You mean centered laterally, with a section of the bead too far up or down the rim? Would raising the wheel, deflating the tire, and incrementally reinflating while checking position or "roundness" make sense?
  12. Practice Maneuvers

    To follow up, since I mentioned wanting to try falling leaf stalls, on my last flight I did play around with this, with 15deg flaps. I was expecting (hoping?) for balancing falling off to either side with changing rudder application, but the plane simply mushed increasingly to the left, needing constant full right rudder to keep the wing up. It was pretty anticlimactic, and the plane seemed generally unhappy with the whole exercise.
  13. Loud Periodic Creak While Taxiing

    A small or normal brake application has no effect in my situation. I think this must be the right track. Both tires are visibly out of round --- not severe, but noticeable when spinning with the wheel lifted off the ground -- so my current theory is that when rolling, that regularly shifts the weight just enough to move the gear against the saddle, as you put it. And although it clearly is not coming from inside the cabin, it does seem louder there than when outside.
  14. Loud Periodic Creak While Taxiing

    Since my initial post I have only been able to fly twice, due to a long string of terrible (but unfortunately typical) flying weather, but I was still unable to pinpoint the loud creak. Again, it only happens when rolling, and is dependent on speed/wheel rotation. This would seem to point to brakes. But the noise comes from the gear/fuselage attach area, which would point to fairings. However, adding foam to the fairing joint had no effect, nor did grabbing/moving the fairing while pushing the plane. It seems to be the gear attach, but I can't find exactly where, nor do I understand why it would be tied to wheel rotation. It's like a (very) bad bearing, only if the bearings were at the fuselage. Which, um, they are not. The wife, who is already convinced the wings and other helpful parts are about to fall off, is not happy about this noise...
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