CoClimber

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About CoClimber

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CoClimber's Activity

  1. CoClimber added a post in a topic New Fox 2   

    Okay, just looked them up.  It makes 60HP so that might be too underpowered.
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  2. CoClimber added a post in a topic New Fox 2   

    What about the HKS 700E on Barnstormers?  I don't know these engines but it was pulled from a Kitfox.
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  3. CoClimber added a post in a topic Disembodied spirit   

    Good to hear from you!  I'm glad you are enjoying the Sonex.  Every once in a while I check out Barnstormers to see what's out there.  I need to finish building my Kitfox before venturing out to other projects.
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  4. CoClimber added a post in a topic Drag reduction   


    This is a mock-up of how I intend to streamline my cabane gear spring.  3D pprinted ends and aluminum flashing.  Will be easy to slide out of the way for inspection and will help keep dirt out of the greased parts.
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  5. CoClimber added a post in a topic Drag reduction   

    According to this article, unstreamlined 1" diameter wing struts will cost you 25hp at 100mph.  http://www.jackbhart.com/firefly/pdrag.html
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  6. CoClimber added a post in a topic Model 4   

    Did the plane look crooked to you in the head on photo?  May have been the angle.  The price is very good but I have to wonder why when model 1s are now going for that price.
     
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  7. CoClimber added a post in a topic Model 2/912   

    There is a 912 in front of my KF2 but I am still a long way from flying it so I can't tell you much.  I hope to fix that situation as soon as possible!
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  8. CoClimber added a post in a topic AOA   

    Details here: https://eaachapter90.wordpress.com/building-your-own-lift-reserve-indicator/
     
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  9. CoClimber added a post in a topic AOA   

    With my build, I bought a Dwyer differential pressure gauge to use as a lift reserve indicator.  You add a second pitot tube angled down ~45 degrees and this gauge reads the difference between the pitot pressure and this tube.  Costs ~$50.  I am also working on a DIY glass screen that will have an electronic pressure sensor to give me the same info and could also sound an alarm but first I want to get the airplane flying...
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  10. CoClimber added a post in a topic Near miss with fuel line.   

    Thanks 109jb.  Aluminum for me then.  Now where can I borrow a flaring tool? 
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  11. CoClimber added a post in a topic Near miss with fuel line.   

    I have a question regarding fuel lines.  Why do we use aluminum tubing between the header tank and the firewall?
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  12. CoClimber added a post in a topic New Flaperon Mixer system   

    Well done!  I kept it simple in my conversion and just copied the Model 4 mixer.  Meant that I had to modify my fuselage to attach it.
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  13. CoClimber added a post in a topic Rudder/Elevator   

    I believe that the 2 uses smaller diameter tubing than the 4.  I made the mistake of not going to a larger tubing when I added 12" to my rudder/vertical stab.  It now flexes more than I'm happy with so I will be adding braces to the vertical stab to prevent flutter, which will add drag.
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  14. CoClimber added a topic in Kitfox IV   

    Flaperon horn dimensions
    I managed to find two new flaperons for my model 4 wings that I am building.  However, they don't have the horns.  I would like to fabricate my own.  Can anyone measure the length of the tube that slides over the tube that runs down the length of the flaperons, and also the distance from the tube to the linkage attachment hole?  
     

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  15. CoClimber added a post in a topic Getting started/setup for Welding?   

    I have very little welding experience but I welded up a bunch of expansion chambers a few years ago out of 20 gauge steel using a tig welder where I work.  Spent half the time filling in the holes I created.  When I started working on my Kitfox, I looked into using a torch welder I had at home. I didn't want to have to haul the fuselage in to work so wanted to get the gas welder going.  I soon learned that the stock tip was way too big for our thin wall 4130 steel.  I bought a Smith AW1A torch handle and absolutely love it.  I personally find it much easier to use than a tig. Heat control is just a matter of moving the torch further or closer to the weld.  The tig is much brighter, making it hard for me to see both the puddle and the adjacent seam.  Regardless of what you choose, practice a bunch.  Cut the welds in half to examine the penetration, and break a bunch of them.  The weld itself should never break.
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