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Type: Posts; User: zeroback

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  1. Thread: SR X250 Twin

    by zeroback
    Replies
    9
    Views
    297

    20170922017091 I use brass tubes sharpened using...

    20170922017091 I use brass tubes sharpened using a #11 razor blade, and spin the tube by hand to cut balsa . For plywood I cut little teeth into the tube and stick the tube in a drill. The edge has...
  2. Thread: SR X250 Twin

    by zeroback
    Replies
    9
    Views
    297

    20165562016557 I read that every gram of...

    20165562016557
    I read that every gram of weight removed from the tail removes a total of 4 grams of overall airframe weight. I have found that to be a pretty good rule of thumb along with light is...
  3. Thread: SR X250 Twin

    by zeroback
    Replies
    9
    Views
    297

    Thanks, This is were my interest in the 250...

    Thanks,
    This is were my interest in the 250 started http://www.rcuniverse.com/forum/crash-rebuild-96/11594912-sr-x250-saga.html
  4. Thread: SR X250 Twin

    by zeroback
    Replies
    9
    Views
    297

    Like Hangin drywall in a house the covering...

    Like Hangin drywall in a house the covering always makes the frame start to look like something.
  5. I have overpowered a couple of foamy's and...

    I have overpowered a couple of foamy's and included upgrading the mount while swapping power systems. Although what I have found is that even with reinforcement the foam seems to "mush out" over time...
  6. Gators won't bother anyone as long as they do not...

    Gators won't bother anyone as long as they do not get near a nest. Local knowledge gained from having had to swim with the gators a time or two retrieving malfunctioned airframes from the swamp I fly...
  7. Thread: SR X250 Twin

    by zeroback
    Replies
    9
    Views
    297

    Motor mount structure built and weight check. OEM...

    Motor mount structure built and weight check. OEM design is 24oz, with a 1350 3S pack I should come in slightly under spec.2012368201237520123742012373201237220123712012370201236920123772012376
  8. Thread: SR X250 saga

    by zeroback
    Replies
    39
    Views
    1,078

    Thanks for the tip

    Thanks for the tip
  9. Thread: SR X250 saga

    by zeroback
    Replies
    39
    Views
    1,078

    The Contender kit I have mentions the optional...

    The Contender kit I have mentions the optional wing tip but I didn't see any rudder mods mentioned. I'll have to look that up. Did you install the center flap? I bought the Contender and a Great...
  10. Thread: SR X250 saga

    by zeroback
    Replies
    39
    Views
    1,078

    Overall I'm quit pleased with it, Q: any...

    Overall I'm quit pleased with it, Q: any experience with the Top Flite Contender? I have a kit and a slew of glow engines to power it but I'm considering an electric conversion.
  11. Thread: SR X250 saga

    by zeroback
    Replies
    39
    Views
    1,078

    Well I finally had the opportunity to maiden the...

    Well I finally had the opportunity to maiden the new X250. Any test that comes back in operable condition is a success although there is some tweaking needed. First taxi and range test went well and...
  12. Thread: SR X250 Twin

    by zeroback
    Replies
    9
    Views
    297

    Making some headway.

    Making some headway.
  13. Thread: SR X250 Twin

    by zeroback
    Replies
    9
    Views
    297

    Already an oops in the photo anyway.. This is the...

    Already an oops in the photo anyway.. This is the way I'm thinkin this will work. The prop shaft center is on the same line as the single motor. Seems everything in the plans is square like my foamy...
  14. Thread: SR X250 Twin

    by zeroback
    Replies
    9
    Views
    297

    SR X250 Twin

    This will be my first twin. I have another 250 that fly's like a dream. I recently rebuilt it and added the mods intended for this kit. Those were BL Lipo power, dual aileron servos, and a steerable...
  15. Thread: SR X250 saga

    by zeroback
    Replies
    39
    Views
    1,078

    Time to wake up my videographer Upgrading the...

    Time to wake up my videographer Upgrading the steering servo and getting the slop out of the mechanisms made a marked improvement in controllability, it taxi's sweet now. I received the adaptor...
  16. Replies
    6
    Views
    315

    Good looking racer! interesting how the red looks...

    Good looking racer! interesting how the red looks maroon in the different light.
  17. Thread: SR X250 saga

    by zeroback
    Replies
    39
    Views
    1,078

    Yup these are keepers, great ground clearance but...

    Yup these are keepers, great ground clearance but I am having to upgrade the servo. the i300 servo becomes over loaded by any speed higher than walking speed resulting in a spin out. Maybe a ground...
  18. Thread: SR X250 saga

    by zeroback
    Replies
    39
    Views
    1,078

    Perhaps this is slightly more reasonable, No lack...

    Perhaps this is slightly more reasonable, No lack of power for short grass takes but I think the mains will collapse with added friction, but I'll give it a shot. Going from a 40 watt to over 200...
  19. Thread: SR X250 saga

    by zeroback
    Replies
    39
    Views
    1,078

    That would be far to conventional for one of my...

    That would be far to conventional for one of my airplanes. But it did give me an idea (that's a bad thing) How about I set it up with a module with a cartridge of helium attached to a deflated...
  20. Thread: SR X250 saga

    by zeroback
    Replies
    39
    Views
    1,078

    I got Clearance Clarence!!! Now where's my...

    I got Clearance Clarence!!!

    Now where's my boom box?
  21. Replies
    32
    Views
    2,093

    Dope and talcum powder ,that was my formula to...

    Dope and talcum powder ,that was my formula to reduce the amount of dope the wood and covering soaked up. Although nowadays I think there is are better products than talc to use as a thixotropic...
  22. Replies
    32
    Views
    2,093

    You mean like dope a silk? That take me back a...

    You mean like dope a silk? That take me back a few decades I remember as a kid wishing I could afford the tools and material to shrink wrap a plane. Even silk in those days was pretty expensive so...
  23. Replies
    8
    Views
    330

    New question: I'm starting a build on a X250 kit...

    New question: I'm starting a build on a X250 kit but plan to modify it for twin motors, what thread is it best to post the build in since it is not a straight up build or a scratch build
  24. Thread: SR X250 saga

    by zeroback
    Replies
    39
    Views
    1,078

    I couldn't find a 4mm to 8mm prop adaptor for the...

    I couldn't find a 4mm to 8mm prop adaptor for the Graupner props but I did find this solution.
    http://www.getfpv.com/graupner-prop-reducers-8mm-to-4mm-4pcs.html
  25. Replies
    1
    Views
    166

    You won an airplane and it didn't come with...

    You won an airplane and it didn't come with plans? Contacting Great Planes would be your best bet.
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