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  1. Replies
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    I've had tailwheels where the pins the springs go...

    I've had tailwheels where the pins the springs go over shear or at the very least get loose. On one I was able to peen the end of the pins on the back of the metal disc to tighten. At the time in...
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    Jonnyo thanks for sharing the summary and info...

    Jonnyo thanks for sharing the summary and info from your experience. Lots of uses in the cold especially wheel bearings and adjusting screws. Not many tailwheels for commercial users so maybe the...
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    Hopefully someone took a pic from the air of the...

    Hopefully someone took a pic from the air of the scene soon after. Maybe hard to tell what terrain was there if snow patches and darkened trees at night in limited vis.

    Gary
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    My PA-18A brake and rudder pedals were bent...

    My PA-18A brake and rudder pedals were bent towards the C/L from a prior accident in Montana. Still worked ok.

    Gary
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    NTSB:...

    NTSB: https://app.ntsb.gov/pdfgenerator/ReportGeneratorFile.ashx?EventID=20191130X55947&AKey=1&RType=HTML&IType=FA

    I wonder if the terrain was burned and blackened prior to the crash from this...
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    That 33MS now 64 looks interesting. I've used...

    That 33MS now 64 looks interesting. I've used some Lubripate Low Temp with 5% Moly from a Military spec surplus can but it takes disassembly. Moly (like found in automotive CV drive joint lubes) is...
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    What brands of grease did you try? I have...

    What brands of grease did you try?

    I have used Exxon-Mobile SCH-100 (Airframe's preferred lube-synthetic), Aeroshell 22-synthetic, and Lubriplate Low Temp-mineral. Mechanics often use Aeroshell...
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    I put it next to my Drudge Report bookmark. Makes...

    I put it next to my Drudge Report bookmark. Makes about as much sense and lots more fun.

    Gary
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    The lack of ice thickness and overflow from snow...

    The lack of ice thickness and overflow from snow weight are becoming a common event especially on our rivers (https://www.weather.gov/aprfc/IceThickness). Interior Alaska hasn't seen the normal...
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    Here's a great read about aerodynamics. See pages...

    Here's a great read about aerodynamics. See pages 61 on for planform effects and 79-80 for pics of tufted rectangular wings during a stall. I keep one in the airplane shelf.

    Naval Aviators....
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    A SUPERCUB Classic:...

    A SUPERCUB Classic: https://www.supercub.org/forum/showthread.php?28607-A-201-Aerodynamics-wing-washout
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    That's a good plan Gordon. I guess once built...

    That's a good plan Gordon. I guess once built you'll have an opportunity to experiment with washout versus tail control effectiveness and trim over the range of airspeeds and CG.

    Edit: Also...
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    "...I'm looking for some guidance on an EAB -12...

    "...I'm looking for some guidance on an EAB -12 build I'm working on...I'd like to learn what the consensus might be for the "best" washout setting..."

    Gordon it's your turn. What's your design...
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    2nd hand personal comment to me from an...

    2nd hand personal comment to me from an experienced pilot that flew at altitude and lots on skis...flatter wing = less "mush" and uncertainty on takeoff and landing. He wanted lift that could be...
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    CAR 4 and 3 list performance requirements. How...

    CAR 4 and 3 list performance requirements. How wash affected the results during certification is a question that may never get answered - I don't have an answer - but I assume it's related to meeting...
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    Besides having done it that way (the 2.5*...

    Besides having done it that way (the 2.5* washout) since the 1930's, is there some performance requirement via CAR 4a (J-3; see Sec. 04.7 for performance requirements) then later CAR 3 (PA-18; also...
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    He must have had the wrong side up...try again. ...

    He must have had the wrong side up...try again.

    Gary
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    There's something like this locally (overall...

    There's something like this locally (overall black with bright green cockpit). I know the owner and will have a closer look.

    Gary
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    Smoother overall would be my choice to encourage...

    Smoother overall would be my choice to encourage surface flow. If desired add some metal side curtains like Bellanca did above for assumably a good reason to the under cowl adjacent to the exhaust...
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    Keep the tech happy and let him design and own...

    Keep the tech happy and let him design and own it. Put a camera on the gear to observe air create yarn flow in that outlet area at differing angles and airspeeds. If it works as expected everybody...
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    If this is the typical BCSC-Rev 2 cowl adding a...

    If this is the typical BCSC-Rev 2 cowl adding a lip as pictured or an adjustable cowl flap extended forward like the Bellance Scout pic above might help.

    Gary
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    That might help. Experiment with a half round in...

    That might help. Experiment with a half round in front or 3/4 around the edge (metal or ? tubing cut to fit and fastened. Cessna on some models (like the 180/185) does what you did and formed a...
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    Not #2. That sharp lower edge of the firewall...

    Not #2. That sharp lower edge of the firewall creates turbulence (read that somewhere) and outlet flow should stay away as much as possible. The lip also adds stiffness to the lower cowl which if...
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    Question: Does the PA-18 tail shake worse than...

    Question: Does the PA-18 tail shake worse than the PA-12? I had both and it seemed like it did but can't exactly recall. If so maybe the flatter fuselage sides of the -18 create some of the...
  25. I shimmed my PA-11-90 mount. Yes it helps....

    I shimmed my PA-11-90 mount. Yes it helps. Removed prior to sale.

    Gary
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