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Type: Posts; User: -Rick-

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    Re: 70cc twin exhaust

    I am really happy with it!
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    Re: 70cc twin exhaust

    Ray, the DA 70 has been a perfect motor for me. Runs like a bull!! When a guy gets 600 more rpm with exactly the same prop I had on a EME 60 you know we have a winner!! (and I really believe is has...
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    Re: 70cc twin exhaust

    I know the db numbers don't lie but everyone at the club as well as myself do find it quieter than other 50,60,70cc motors. It must be the tone of the exhaust.

    I do believe that it rips at times...
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    Re: 70cc twin exhaust

    86 db from both left and right. 88 behind. Could not check in front, field was busy.
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    Re: 70cc twin exhaust

    Okay. I will try in all four positions.
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    Re: 70cc twin exhaust

    I did by guessing at the distances of what Jim was asking for. Going out today and will take a tape measure with me. Three meters is just under ten feet so will try again. I will try it at twenty...
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    Re: 70cc twin exhaust

    Jim, 93 db at WOT. 7300 rpm with a 24x10 wood.
  8. Thread: Eme 60 rpm

    by -Rick-
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    Re: Eme 60 rpm

    Wouldn't it not run if that happened? But what you say makes sense.
  9. Thread: Eme 60 rpm

    by -Rick-
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    Eme 60 rpm

    Not for me but for a good friend.

    I have a EME 60 running on a can, with a wood 24x8 I get 6700 RPM.
    My friend has the same motor but had a little meeting with mother earth. Not that hard thou....
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    Re: 70cc twin exhaust

    Okay I will do that when I get my new landing gear later this week. Had a dead stick 4 feet off the ground while dragging the plane in. Some how got crap in the carb.
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    Re: 70cc twin exhaust

    101 bd about 7 feet away wide open throttle on grass.
  12. Re: The official Riff-Raff thread (never ending engine thread, East/West)

    Yes Jack, four flights on it since then. This DA 70 is awesome!! Many say it feels like a electric motor for smoothness and they are right! Will hover around a third throttle ( not that I can do it...
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    Re: 70cc twin exhaust

    Yes Jim, I have a DB meter. How do you want me to read it? How far away etc. I fly from a grass field and no way will this plane fit on a stand. Let me know how...
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    Re: 70cc twin exhaust

    Two flights on it yesterday. She fly's well.
  15. Re: The official Riff-Raff thread (never ending engine thread, East/West)

    Ya it was. Never had that happen to me before. Glad the gear is tough on the Raven, didn't hurt it.

    Got to lean the motor in as well. Next time...
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    Re: 70cc twin exhaust

    Didn't get it off the ground. Wheel fell off :banghead: Very quiet.

    https://youtu.be/C3BRzFtsvUI
  17. Re: The official Riff-Raff thread (never ending engine thread, East/West)

    Raven didn't make it of the ground, dropped a wheel on take off run and flipped it over. Just broke the prop.

    This thing is quiet!!

    Short vid, just watch the last 10 seconds.
    ...
  18. Re: The official Riff-Raff thread (never ending engine thread, East/West)

    Hopefully I can arrange that Paul.
  19. Re: The official Riff-Raff thread (never ending engine thread, East/West)

    My AJ Raven maiden tomorrow!!!
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    Re: Rave地 over the 70cc AJ Raven

    Yes
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    Re: Rave地 over the 70cc AJ Raven

    Something different for the cooling of my Raven. Think it will work?
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    Re: Rave地 over the 70cc AJ Raven

    How do you cool the ESC and motor in something like that?
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    Re: Rave地 over the 70cc AJ Raven

    That is a big honking electric motor!!
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    Re: Rave地 over the 70cc AJ Raven

    Ya, I forgot about the big hole for the carb! The "Kiss" method might work.

    Will you call for me again next weekend again Paul? I have had practice this year, should be better.
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    Re: Rave地 over the 70cc AJ Raven

    You just drop the rod out the bottom of the cowl Ed?

    Weird thing. I could not get hold of a 4 inch rudder arm, got sent one for a hitec which don't fit so ordered a 3.5 inch from Tbolt. Put it in...
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