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  1. Replies
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    You could alter that baffle shelf in front of the...

    You could alter that baffle shelf in front of the cylinder to a ramp. Slope it up from the lower cowl opening to the center of the cylinder. This will smooth the airflow up and back over the top. As...
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    Thanks Dave, that is the best explanation of how...

    Thanks Dave, that is the best explanation of how and why. I have wondered why and your post answers my questions.
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    439

    Due to the aerodynamic shape of a fuselage it is...

    Due to the aerodynamic shape of a fuselage it is natural for the ambient pressure in the cockpit to be lower than the pressure outside. This tends to draw air in from any openings at the tail. Thus...
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    Heiko, If this is your cowl, cut that reverse...

    Heiko,
    If this is your cowl, cut that reverse scoop along the sides. Replace that leading edge bend with a piano hinge. Extend the height of the sides and connect it to a cockpit control so that you...
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    47,852

    I like the glue idea as all it will be doing is...

    I like the glue idea as all it will be doing is to take up residual slop.
  6. Replies
    372
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    47,852

    Charlie, Is that extra length just slid on to...

    Charlie, Is that extra length just slid on to increase the wall thickness in the lower end?
    This is reminding me of long ago in the early 60s (1963?) at GBR. There were a half a dozen 450 Stearmans...
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    My Cub has the stock tail wire setup and the long...

    My Cub has the stock tail wire setup and the long flaps with a rock solid tail. I think that it is the long flaps eliminating turbulence from the outboard end of the stock flaps reaching the tail...
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    option 3 This is my BC Cub...

    option 3
    This is my BC Cub https://www.supercub.org/forum/showthread.php?42657-New-Smith-Cub-coming-together&highlight=smith+cub
    Unfortunately the photobucket logo is bluring the pictures but...
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    Steve, that failure is screaming for an...

    Steve, that failure is screaming for an explanation. Was it a bad casting? Do they use an inferior alloy for casting? Was the mating surface not machined flat? Was the mating to the engine not...
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    The PMA only means that the parts are approved as...

    The PMA only means that the parts are approved as designed and authorized to be manufactured. It Does not authorize the installation on any airplane.
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    " Hey we have a beautiful GPS system with moving...

    " Hey we have a beautiful GPS system with moving map in our airplane, lets go flying in the unlit mountains after dark under an unknown overcast. Let's take the Navajo, it goes fast so it won't take...
  12. Just to stir the pot, I've flown several J-5s...

    Just to stir the pot, I've flown several J-5s with 0-235s, they were decent but just so so. Then once I was asked to ferry a no interior 85 hp J-5. That airplane was amazing, very short take off and...
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    This is a good article on checking your fuel...

    This is a good article on checking your fuel nozzles and how to determine if they have different flow between them. The author is retired from Lycoming....
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    There's plenty of open water around here. We...

    There's plenty of open water around here. We should consider meeting at Island Bob's in the spring. Was your DPE Doug Smith? He was F/E for me on the 727.
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    This is true however, the tail authority is...

    This is true however, the tail authority is greater and the drag component is less with the ballast.
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    Tom, I'm not aware of there being any issues with...

    Tom, I'm not aware of there being any issues with it's placement. It feels very comfortable blowing on your feet and the output openings are controllable.
    The only issues we had was before the...
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    So what is wrong with the heater? I know you have...

    So what is wrong with the heater? I know you have one, or at least there was one there.
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    Adam, Since you do not have an unlimited budget...

    Adam, Since you do not have an unlimited budget you will be money ahead going with Javron over Cub Crafters.
  19. Doug, Your example has backed up my theory that...

    Doug, Your example has backed up my theory that there is a "drag" wall which occurs around 110 mph. Below that speed the drag portion of aerodynamics does not have the same effect as it does over 110...
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    Due to the angle of attack and the inaccuracy of...

    Due to the angle of attack and the inaccuracy of the airspeed in those conditions it is not possible to determine any difference in speed. Without the ballast there was not enough up elevator to get...
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    Denny, Trimming will relieve the stick pressure...

    Denny, Trimming will relieve the stick pressure but not reduce the down force applied by the tail assembly. This in turn equates to an equivalent amount of additional weight which the wing must...
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    Alternatively to the GAMI route, you can go to...

    Alternatively to the GAMI route, you can go to https://airflowperformance.com/. This is what I did. They modified my nozzles with removable orifices so that they can be fine tuned for much less...
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    Not so. You are mixing carburetor and fuel...

    Not so. You are mixing carburetor and fuel injection trouble shooting issues. The fuel is evenly distributed from the flow divider depending on the orifice size of the discharge nozzles which are in...
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    Without knowing the exact numbers for this model...

    Without knowing the exact numbers for this model engine. those fuel flow numbers sound about right.


    At what OAT? Other than a high OAT you may have leaned the mixture too much or the baffles...
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    Which frequency is your equipment operating on,...

    Which frequency is your equipment operating on, 978 mhz or 1090 mhz? It is my understanding that only the 1090 mhz units talk to each other. The 978 mhz units have to communicate through a ground...
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