Activity Stream

Activity Stream

  1. dholly added a post in a topic Wing Testing   

    Sandbag static test was performed without spar stiffeners in place, IIRC.
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  2. Yamma-Fox added a post in a topic Yamaha Apex Skytrax Adapters   

    Mostly smoother start transitions, not easier.
    The starter is strong enough to spin up the prop.  The clutch allows the prop to override the motor momentarily as it fires off from starter speed and accels up to idle speed, helping keep the engine from getting into the sub-idle "shakes" where the prop and motor can get into a wrestling match.
    Sounds like that helps especially with the bigger props used on this motor.
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  3. Avid Randy added a post in a topic What difference does pitch make?   

    I've been trying to get a better grasp of prop pitch too!  Avid90- That is a Great comparison /explanation to bring it into perspective.  Makes much more sense now! Thanks 
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  4. Av8r3400 added a post in a topic Yamaha Apex Skytrax Adapters   

    A sprag is just a one-way clutch.  
    How does this help starting?
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  5. Avid90 added a post in a topic What difference does pitch make?   

    Just picture less propeller pitch the same way as you do a lower gear in  car's transmission.  Less pitch will give you faster acceleration off the line than a higher pitch, but you run out of high end as the engine reaches its maximum speed.  Ideally, propeller pitch would vary with the load (lower pitch for takeoff and climb, higher pitch for cruise).  Aeromatic props did this automatically with air load and centrifugal force.  Some airplanes of years ago used a two-position prop (the Sensenich Skyblade on a Stinson comes to mind).
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  6. Yamma-Fox added a post in a topic Yamaha Apex Skytrax Adapters   

    Update on teals progress here.  He just came up with an "in gear" sprag clutch prototype that really looks cool:
    Simple and space efficient, big huge diameter used in high power applications, well lubed in the oil bath of the gearbox, easily available at auto parts stores, inexpensive to inspect/replace.
    A good HD sprag will really save some wear and tear on the gearbox and engine gear reduction components and also make starts much smoother.
    Nicely done Teal!

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  7. wypaul added a post in a topic Latest project   

  8. lv2plyguitar added a post in a topic Latest project   

    Whats the differences you see that make the AVID more fun.  I have considered going to larger bush plane but have no experience in one.
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  9. Yamma-Fox added a post in a topic What difference does pitch make?   

    Plane hitting vne at the same time engine hits max hp/rev limit..... that sounds like an ideal performance setting to me!
    Maybe do 17.5 if you are going for a long cruise.
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  10. lv2plyguitar added a post in a topic What difference does pitch make?   

    I adjusted the pitch on the whirlwind 3 blade 75" STOL from 17.5 to 16.  I can feel the added torque on take off and the climb angle is steeper.  Appears that setting puts the engine at around 5800 full throttle in flight.  I can go full throttle for a few seconds as the plane approaches VNE very quickly at 5800.
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  11. lv2plyguitar added a post in a topic Progress on the extended wings   

    You'll be ready for Valdez STOL competitions once the boat anchor is removed and the Rotax installed.  I am thinking about ordering the zipper kit so I can do a vertical climb.
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  12. TJay added a post in a topic Wing tanks Avid flyer   

    Your limited to 6 gallons with aluminum. Flexing happens with the bigger ones.
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  13. Steven Freyone added a topic in Avid and Kitfox parts Suppliers   

    Wing tanks Avid flyer
    Anyone have plan and section drawings for wing tanks , so that i can fabricate in aluminium. My wing tanks are fibre glass and in a bad state , one of them has a leak and the condition of the other is not good.
     
     
     
     
    • 1 reply
    • 33 views
  14. Steven Freyone added a post in a topic Rotax 582 mag error   

    I will get more info , but yes the mechanic says that it is ok with both on , so really i dont know 
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  15. C5Engineer added a post in a topic Rotax 582 mag error   

    What is reading error? Please provide more info. 
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  16. Dusty added a post in a topic Rotax 582 mag error   

    Can you hear the variation between left right (or front back), tacho error is normal .
    I tell 582 newbies the best place to look when doing a mag drop test is out the window!
    if there is a noticeable difference,plugs is the first item to look at as it gets more involved and expensive from there.
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  17. Bandit added a post in a topic matco TW cam releases   

    Why do you want them to release?
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  18. TJay added a post in a topic Kitfox 1 questions   

    looks great Mr. Keep plugging along
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  19. Avid Randy added a post in a topic Control Column Chaos   

    Yeah...I should've said Ms. Feisty!
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  20. Avid Randy added a post in a topic Caption Contest   

    During Hard Times it's called a "Man Wheel"! Whatever it takes to keep flying!
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  21. Steven Freyone added a topic in Two Strokes   

    Rotax 582 mag error
    i have had an overhaul on the 582 but when doing mags tests its reading error but when both on its fine
    any suggestions or anyone with same problem
     
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    • 41 views
  22. Ramos added a post in a topic Caption Contest   

    A behind the scenes snapshot of Fabio wearing the latest in men's headwear at the Milan fashion show. Looks like he is ready for the 'runway'.....
     
    or
     
    Aircraft Addiction Symptom # 42: You spend so much time thinking about airplanes, your mind actually manufactures one....
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  23. C5Engineer added a post in a topic matco TW cam releases   

    remove the cam entirely.
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  24. CSCameron added a post in a topic Caption Contest   

    Look Ma, no hands...
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  25. btjenkins added a post in a topic matco TW cam releases   

    I have the Matco 8" wide tire with a 45 release on my kitfox and it is difficult to release the tailwheel. Most likely switching to the 25 soon.
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