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0TreeLemur last won the day on February 27

0TreeLemur had the most liked content!

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About 0TreeLemur

  • Rank
    Won't Leave!
  • Birthday September 1

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  • Location
    : TCL
  • Interests
    Airplanes & things that make them go.

  • Reg #
  • Model
    '67 M20C /B,G,R,S,Y "Lil' Sister"

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  1. I agree with much of what you wrote @EricJ. The compromise lies between "freshness", "accuracy", and "value" of the information. Our fleet is primarily 30+ years old, and in many cases 45+ years old. This argues that freshness not be the highest priority. Ultimately, determination of accuracy is ultimately up to the owner. Value is where a FAQ section can excel. Valuable information belongs in a high-visibility location. Having it hidden in random threads here and there greatly reduces its value. If it doesn't belong in a FAQ, don't put it in there. Some nuggets do belong the
  2. Wow, there's a 12 step program for brake bleeding? Why is that not in a FAQ section? Somebody share a link! @Shadrach?
  3. Seems like the AH is most likely if so- the gauge is connected to it, and it is connected directly to the regulator. Second vaccine shot from yesterday has me feeling crappy today, so my plans to go to the hangar to test thwarted.
  4. Ok. It would have to be the AH. A plan of attack has emerged based on input above, I'll replace the vacuum line between AH and gauge tomorrow. If that doesn't do it, I'll then swap regulator using the one that @Andy95W has graciously offered to the cause. If that doesn't do it, then by deduction my AH must have a case leak. Nothing else is in that branch of the circuit between the pump and gauge.
  5. I've reached a similar point in the fault logic tree. Hard to believe that it could be a leak that big and have the PC system still operate. It was quite turbulent when I flew today, and the PC system was very responsive. So now I'm leaning big leak in hose going to gauge from AH, or bad reg. Regs are surprisingly expensive it seems, new.
  6. Hi Doc- the gauge suction port is connected to the spare plenum port on the artificial horizon, and the other gauge port is vented to atmosphere through a plastic filter ala the type Brittain used. The hoses are old.
  7. The reg is old as dirt as far as I can tell. Might be orig. Never mentioned in logs. It does have a brand-spankin' new garter filter tho.
  8. So, annual done on our M20C. Went to pick it up. Odd vacuum behavior noted. At last year's annual done by MSC, I reported a squawk on the vacuum system running in the bottom of the green arc just barely above 4.5" Hg. They tried adjusting the regulator, but couldn't get it any higher. This year, with about 450 h on the vac. pump, I asked the A&P doing the annual to replace it, which he did. When I arrived at his shop, he was scratching his head because he was unable to get it to reliably run in the green. Here's what we saw during testing. He connected my old vacuum p
  9. I dropped a Cardinal in one night like the tailhook crowd. It was a rental in a place and time far-far-away. I never got a call back so I guess I didn't damage anything too badly. Luckily, I was alone after a long day.
  10. I really like this light. It has a grating over four of the 18 LEDs that does actually cast some light to the sides. Much safer for taxi ops than the incandescent for sure. Not sure if it will solve your problem, but it is good and bright. I spotted two deer on the runway on short final by their shadows.
  11. Same guy, he's all over fluid mechanics. He designed the wind tunnels that were used by Germany, Japan, and the U.S. to design and test their WWII fighters. Probably safe to say that nobody since has had such a large singular effect on aerodynamics.
  12. That airspeed indicator has a white arc for a different aircraft. Top of white arc for a 66C should be at 100 mph. Yellow arc looks ok. Good luck.
  13. Congratulations on having good fortune on your side. In flight with a stuck open throttle creates interesting challenges to test a the pilot's dead-stick landing skills. The last annual presented a great opportunity for someone to observe the missing cotter pin, if it was missing then. The importance of putting eyes and/or fingers on every critical linkage with some regular frequency can't be overstated. The timing seems odd given that at last shutdown that bolt must have been in place. The drag on the throttle plate must have created some shear on the bolt that disappeared whe
  14. Yes, but creating more lift than drag and a bit of a nose down pitching moment, causing your elevator to create negative lift as a compensation in level flight. All that will slow you down a wee bit.
  15. Agree. With ailerons in neutral position, the end of the flaps on our C are about 1/8" (3 mm) further off the floor than the ends of the ailerons. Photo: flap-gap seals after install. They seemed to improve climb performance a bit, with no noticeable difference in cruise speed.
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