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Type: Posts; User: jrf

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  1. Thread: Proper plane

    by jrf
    Replies
    14
    Views
    456

    I'm going to partially disagree. Yes, the Senior...

    I'm going to partially disagree. Yes, the Senior Kadet is among the best for learning how to fly. But it is not sturdy enough for a true beginner to learn to take off and land. A minor mishap with...
  2. To respond to your original post; OS manufactures...

    To respond to your original post; OS manufactures and sells engines in many areas that have very low noise limits. To keep the noise down, OS recommends props that limit the engine's rpm. If you...
  3. Replies
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    To use any kind of rigid hinges or a latch, you...

    To use any kind of rigid hinges or a latch, you would have to build a frame for the canopy. Just use a piece of high tac tape (Monokote trim sheet?) along one side, and screws on the other side. ...
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    Assuming the optimum prop for each engine, the...

    Assuming the optimum prop for each engine, the Moki would be the fastest. The DA the slowest and the big 4 strokes in between.

    Bear in mind, with a speed prop on any of those engines, the...
  5. Replies
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    You seem to have done an adequate fix for the...

    You seem to have done an adequate fix for the problem, and once the wing is closed, no one will see it. I've never built a kit that didn't have some kind of glitch. It's part of the building...
  6. Thread: Balancing

    by jrf
    Replies
    21
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    572

    It's really very simple. A low wing plane will...

    It's really very simple. A low wing plane will not stay in a level position when it is upright on the balancer. Turning it upside down allows it to stay in a level position while you are trying to...
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    Throttle cut for twin engines.

    I am setting up a twin engine (glow) airplane with a Spectrum DX7s transmitter. I am using separate channels (throttle and gear) for the throttles and I have them mixed to operate together. They...
  8. Replies
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    6,023

    Sportee 60

    Tidewater Hobbies (sold by Circus Hobbies, now known as Horizon Hobby) Sportee 60. Completely unbuildable. Bad wood, bad laser cutting, plans and instruction manual showed the 40 size instead of...
  9. Replies
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    That's because we're talking about a US1000.

    That's because we're talking about a US1000.
  10. Replies
    1,074
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    32,237

    The major retailers (Tower, Horizon, Hobby...

    The major retailers (Tower, Horizon, Hobby People, etc) have started calling quads, even toy quads, "Drones". That is a battle we have already lost. The good news is that they are limiting that...
  11. Replies
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    It is clear that we do not know what "within the...

    It is clear that we do not know what "within the programming of" means. Does anyone know of another activity that operates "within the programing of a CBO" for federal purposes? Has congress used...
  12. Replies
    1,074
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    32,237

    Hound Dog: Watched the video. Clearly the guy...

    Hound Dog:

    Watched the video. Clearly the guy does not have flying skills, but at no time did I see him endanger anyone (including himself) or anything (except his airplane). It appears that he...
  13. Replies
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    32,237

    Rumley: What part of the statutory criteria do...

    Rumley:

    What part of the statutory criteria do you find burdensome?
  14. Replies
    1,074
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    32,237

    Anyone remember the "Zagi" flying wing? They...

    Anyone remember the "Zagi" flying wing? They sold a hundred thousand of them one year, then a year later they literally couldn't give them away. The company that made them went bankrupt and several...
  15. Replies
    1,074
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    32,237

    I apologize for the use of the word "legally". ...

    I apologize for the use of the word "legally". It is an interpretation of the FAA and a guideline of the CBO. I refer you to he FAA's guidelines for Model Aircraft at...
  16. Replies
    1,074
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    32,237

    The FAA and congress have repeatedly made it...

    The FAA and congress have repeatedly made it clear that a "Model Airplane" can not legally fly above 400' agl anywhere in the USA. The fact that it is unenforceable does not make it invalid. Get...
  17. Replies
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    Fpv

    Fpv
  18. Replies
    2,805
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    173,913

    No, that is not correct. The sheeting should be...

    No, that is not correct. The sheeting should be glued to the formers, leaving a part of the sides to be sanded off for a nice smooth transition. If you glue the sheeting to the edge of the sides...
  19. Replies
    2,805
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    The important part is to follow the outline of...

    The important part is to follow the outline of the top view of the fuselage shown on the plans. Yes, it can be difficult to bend the sides in. Soaking them with water/alcohol first helps.
  20. Replies
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    Double post.

    Double post.
  21. Replies
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    To maintain the smooth curve to the spinner. If...

    To maintain the smooth curve to the spinner. If you don't mind the bulges that will cause behind the spinner, leave it as is.

    Jim
  22. Thread: Wing area

    by jrf
    Replies
    26
    Views
    815

    Then all you need to worry about is the long...

    Then all you need to worry about is the long takeoffs and high landing speed. Oh yeah, and the tip stalls on takeoff. or when you make a high speed turn, or when you try to slow down.

    Jim
  23. Thread: Wing area

    by jrf
    Replies
    26
    Views
    815

    The specs for that airplane give a weight of 10.4...

    The specs for that airplane give a weight of 10.4 to 11.4 pounds and a wing loading of 27.85 oz/sq ft. using an engine that is 1.4 pounds lighter than yours. The weight with either one of your...
  24. Thread: Wing area

    by jrf
    Replies
    26
    Views
    815

    Not questioning your measurements, but at 3.15...

    Not questioning your measurements, but at 3.15 pounds, that TT 1.20 is way heavy! For comparison, the OS 1.20 AX, with muffler, weighs 823g (1.81 pounds).

    I guess you could use either one of your...
  25. Thread: Wing area

    by jrf
    Replies
    26
    Views
    815

    When comparing the weights, don't forget to...

    When comparing the weights, don't forget to include the muffler, ignition module and battery. The published weight of most gas engines does not include those. Also, the 120 size airplane may not...
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