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Type: Posts; User: buzzard bait

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  1. Replies
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    A K&B 61 with its stock muffler will wake the...

    A K&B 61 with its stock muffler will wake the dead. That's one reason I'd like to be able to run a larger prop on it. A Bisson muffler might help too.

    The 65 Sportster muffler will fit; I...
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    3,841

    Mine does have the adjustable stab, screwed on. ...

    Mine does have the adjustable stab, screwed on. It was built by someone else in the early 70s from an early VK kit.

    I thought yours flew quite well in the video. Congratulations! I don't think...
  3. Replies
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    I don't understand why the old K&b 61 could not...

    I don't understand why the old K&b 61 could not be ported for 13x5 props too, that's a good prop for the HP 61 PDP which is based on it. Maybe it's just that Mr. Lee only does porting for high rpm...
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    Thank you. I am more interested in larger props,...

    Thank you. I am more interested in larger props, like a 13x5, so maybe the Lee mods are not for me. Sounds like he's going for high rpm with a pipe.

    Jim
  5. Replies
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    I completely agree with BobH, however, the VK...

    I completely agree with BobH, however, the VK Nieuport had positive incidence in the wing AND downthrust at the firewall. The kit came out back in the day when people used a lot of downthrust...
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    blw, I have a NOS K&B 61 6550 I was thinking of...

    blw, I have a NOS K&B 61 6550 I was thinking of sending to Lee. Can you tell me what you like so much about it? There was an old RC Report review that didn't find much difference, but a lot of guys...
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    The angle of attack depends on the relationship...

    The angle of attack depends on the relationship between the balance point and the incidence of the stab. Increasing the angle of incidence of the stab is the same as decreasing the incidence of the...
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    Yes, that's exactly what I do too. Trim for...

    Yes, that's exactly what I do too. Trim for level flight at a cruising speed, then do the dive test. I like to see the nose come up slowly, which means moderate pitch stability. But I like to get...
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    You're welcome; I wish I had some facility with...

    You're welcome; I wish I had some facility with computer drawing because I'm sure I could get this across much better with some diagrams.

    The neutral point is determined by the wing area, stab...
  10. Replies
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    I always balance the plane horizontally. I don't...

    I always balance the plane horizontally. I don't understand nose down. How is it balanced if it is a little nose down? No idea; you can't measure the angle, and even if you could, what would it...
  11. Replies
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    Good point. Expo usually enough, dual rates if...

    Good point. Expo usually enough, dual rates if you like a lot of rudder in the air but you're struggling on take-off. I'm not one to use dual rates, but I had a tail dragger once I couldn't get off...
  12. Replies
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    Raising the front of the wing will increase the...

    Raising the front of the wing will increase the incidence and make it worse. You can raise the trailing edge and make it better. If you could trim the stab by raising the leading edge (opposite of...
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    My VK N17 has an adjustable stab. That's the way...

    My VK N17 has an adjustable stab. That's the way to correct a trim problem. Or, judging from the video, just reduce the power. A 60 is an awful lot for this plane. Mine flies with a PAW 40 diesel...
  14. Replies
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    Avionette, thank you for the compliment. ...

    Avionette, thank you for the compliment. However, do not try to put nitrate over the butyrate you already have on the silk. It will lift. Get Tautening Butyrate dope to put over the Supercoat. I...
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    The result was good on my Four Star 60 at first,...

    The result was good on my Four Star 60 at first, but some fuel has penetrated the covering in some places, so it needed more coats. However, even with some fuel getting into the weave, it has held...
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    Les wrote something very important...there are...

    Les wrote something very important...there are tautening dopes and non-tautening dopes, and that is true of BOTH nitrate and butyrate.

    I think Sig gave good advise about the butyrate. Litecoat...
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    About the CG, my experience with BUSA planes so...

    About the CG, my experience with BUSA planes so far is that their plans show a very conservative CG. I always wind up moving the CG back quite a bit with their planes. I haven't had a Citabria...
  18. Replies
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    I'm sure that's right, glow plugs come in...

    I'm sure that's right, glow plugs come in different lengths, but not with different threads. What engine does not use 1/4-32 threads? Maybe something made in 1949?
  19. Replies
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    I've had a lot of experience with stuck carbs...

    I've had a lot of experience with stuck carbs too, and with plastic throttle arms that loosen and won't turn the carb. When I say that you can tighten down the arm, loosen the carb with a heat gun,...
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    I use heat to loosen old carbs and engines. A...

    I use heat to loosen old carbs and engines. A heat gun always does the job. RBACONS is right about the carb lever. Tighten down the throttle arm, then use heat. Don't force it; wait for the heat...
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    You need someone, maybe your wife's grandpa, who...

    You need someone, maybe your wife's grandpa, who can spend some time with you on the engines. It doesn't make sense that a glow plug would get cross threaded on the way out. Someone knowledgeable...
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    It sounds nose heavy. It might sound...

    It sounds nose heavy. It might sound contradictory, but here's what happens: You trim it at 1/2 throttle and everything is fine, but in order to achieve that when it is nose heavy, you have to use...
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    I don't think the problem is the thrust angle. ...

    I don't think the problem is the thrust angle.

    When you say you have everything trimmed out right, what is your method of determining what is right? If everything is right, you should not need...
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    Bob, are you using a plastic spinner? I had...

    Bob, are you using a plastic spinner? I had trouble with my OS 70 FS trying to tighten down on plastic. I switched to an aluminum spinner and never had another problem. I think the kind that has...
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    This is a pretty useful thread. A lot of us, me...

    This is a pretty useful thread. A lot of us, me included, pick up kits online or at swap meets. Some of them are good and no regrets, but sometimes the stuff we dreamed about as kids really wasn't...
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