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Type: Posts; User: combatpigg

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  1. Replies
    32
    Views
    695

    I would be happy with the 4 x 4. I use to use a ...

    I would be happy with the 4 x 4. I use to use a 4.2 x 4 APC on the G&Z and it was as much as that setup could handle...if not a little bit too much.
    The pre-tuned pipe is nice because it took who...
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    294

    H506, take some wire and secure the rod off to...

    H506, take some wire and secure the rod off to the side. You want good, strong light to see in there.
    Besides that, the back side of a #11 xacto blade shaves the leadloy metal nicely. I don't recall...
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    695

    The magic number is 42K. 700 cycles / sec. How...

    The magic number is 42K.
    700 cycles / sec.
    How is that possible...?
    How can you improve on that with the same bore and stroke..?
    Revolutionary bearing design improvement and materials that can...
  4. Replies
    32
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    695

    That 1/2 A plane didn't take much time to get on...

    That 1/2 A plane didn't take much time to get on step...!
    I think it's more interesting to watch the pilot and just listen to the plane.
  5. Replies
    15
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    294

    Yes, if you can push air or fuel through the...

    Yes, if you can push air or fuel through the nipple, you are good to go.
    SPI works great with pressure delivery. KK used to recommend no more than .010" if I remember correctly. I never paid much...
  6. Replies
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    294

    The 5/32" TD venturi mod and backplate pressure...

    The 5/32" TD venturi mod and backplate pressure is what 100% of the local pylon racers have used for years. The size of the pressure orifice makes no difference except that large pressure taps [like...
  7. The Old Guy I wrote about earlier had RC carbs on...

    The Old Guy I wrote about earlier had RC carbs on his AMEs. He had filed air bleed notches in the carb body next to the throttle barrel. I don't recall him demonstrating how well they idled since it...
  8. With .049 diesels I think the idea is to use more...

    With .049 diesels I think the idea is to use more ether in your recipe than you would for a larger engine. The idea is that extra ether [at least for starting] ensures that the fuel will have enough...
  9. It depends on your starting and tuning habits...

    It depends on your starting and tuning habits with diesel fuel. Don't let anyone tell you that running them this way is more forgiving..!
    You have to run diesel engines very close to hydraulic lock...
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    294

    More considerations...if all else checks out...

    More considerations...if all else checks out OK.......
    Engines that are overly sensitive to the usual changes in head pressure as a tank empties in flight aren't pumping efficiently. There just...
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    187

    You can try Oil Of Wintergreen. It is sold at...

    You can try Oil Of Wintergreen. It is sold at RiteAid and probably most "Health Food" type stores where Hippies shop for their eternal life giving products.
    You can heat the area with a propane...
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    515

    Isn't the world's population 6 billion...? I get...

    Isn't the world's population 6 billion...?
    I get out every day, every weekend and have yet to see ANY multi-rotor planes / drones being flown anywhere.
    If there really are 100s of millions of them...
  13. Replies
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    422

    The G2 5.5 x 5.5 prop is a good one to try. I...

    The G2 5.5 x 5.5 prop is a good one to try.

    I remember having a great time with this kit and with the plane that came out of it.
  14. Replies
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    4,527

    That's a clever way to install the servos..!

    That's a clever way to install the servos..!
  15. The AP .061s that I've had are built looser than...

    The AP .061s that I've had are built looser than the Norvel and they wear out quicker. The power is about the same as a early Big Mig. For $30 back in the day, the AP .061 was my favorite 1/2A RC...
  16. If the engine can comfortably maintain 24,000...

    If the engine can comfortably maintain 24,000 with a 5x3, then you have an engine that is worthy of a road trip down to the flying field.
    The AME is the wrong engine to "ground test" for peak rpm...
  17. Doug Galbreath sells the Nelson Plug head...

    Doug Galbreath sells the Nelson Plug head adapters for about $14 [shipping included].
    The Nelson plugs will give you real good power at a good price.
  18. Replies
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    15,288

    How can the 4 motors be controlled well enough by...

    How can the 4 motors be controlled well enough by just a human being to keep that from crashing at high speed...?
  19. Replies
    707
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    15,288

    There is a certain connection with high...

    There is a certain connection with high performance motor sports that only the high revving, alky drinking 2 cycle engines can provide..
    I also prefer a power source that gains power and loses...
  20. I've wondered what could be done by people who...

    I've wondered what could be done by people who were already independently wealthy, but had a tremendous interest in engine development.
    The first things you would do is equip yourself with a dyno...
  21. Poll: I have an archaeologist friend who is fluent in...

    I have an archaeologist friend who is fluent in deciphering hieroglyphics translate HD's posts for me.
  22. Replies
    707
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    15,288

    Rob, what point were you trying to make with that...

    Rob, what point were you trying to make with that 4:18 video..?
    That an engine could make 4 props rotate fast enough to stir up the air..?
    Do you understand why / how many ways an engine powered,...
  23. Replies
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    I can understand engine collectors who build...

    I can understand engine collectors who build custom showcases for these mechanical marvels, give them special effect lighting, do historical research, polish them, restore their innards with custom...
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    I think a Launch Trolley based on long cable...

    I think a Launch Trolley based on long cable guides and a winch style arrangement to pull the Trolley up to a good launch speed is the answer.
    The trolley could ride on eye bolts that slide along...
  25. You can never have too much government in Utopia.

    You can never have too much government in Utopia.
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