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Type: Posts; User: steve111

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  1. The one we ran had a venturi - dunno how much...

    The one we ran had a venturi - dunno how much difference a carb would make. Crankcase pressure worked fine. You should be able to put a muffler on it if you want - they're just held on by a wire...
  2. The accepted wisdom on the 049 AME is that it...

    The accepted wisdom on the 049 AME is that it needs to run on pressure (at least as a glow). That was definitely the case with the only one I've experienced. How that translates to diesel, I'm not...
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    I dunno, I've found that a good 1cc diesel (MP...

    I dunno, I've found that a good 1cc diesel (MP Jet, PAW, or converted Norvel) does really with an APC 7x3, running in the 16000-17500 range. Agreed about the Teflon discs, though - what might work...
  4. Thread: Paw twin

    by steve111
    Replies
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    854

    Hi Derek, that was a 12x6. RPM was in the...

    Hi Derek, that was a 12x6. RPM was in the 8000-9000 range, although I didn't get a really decent reading. Sorry I can't be more definitive, but it gives you an idea, anyway.
  5. Thread: Paw twin

    by steve111
    Replies
    18
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    854

    I wondered about that too, but there was nothing...

    I wondered about that too, but there was nothing of the sort evident when running on the bench
  6. Thread: Paw twin

    by steve111
    Replies
    18
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    854

    Yes, they fire simultaneously, so it feels much...

    Yes, they fire simultaneously, so it feels much like a normal big diesel to flick over, and sounds much like one. Very much smoother, though. Not really sure why it'd be better as an inline twin.
  7. Thread: Paw twin

    by steve111
    Replies
    18
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    854

    Hi Chris, it was sent to Dave by Tony Eifflaender...

    Hi Chris, it was sent to Dave by Tony Eifflaender to have a look at and do a bit of running. It'll then go to Maris for testing (which will presumably appear in Aeromodeller in due course), after...
  8. Thread: Paw twin

    by steve111
    Replies
    18
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    854

    Limited run, 15 only.

    Limited run, 15 only.
  9. Thread: Paw twin

    by steve111
    Replies
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    854

    Paw twin

    Here's the new PAW .38 twin, one of only 15. Nicely made, and a very smooth runner. Quite an achievement by the blokes at PAW.
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    I guess that if the improvement was really that...

    I guess that if the improvement was really that cut-and-dried, everyone would be doing it - which clearly they aren't.

    To to be fair, though, your 400 rpm improvement actually represents about a...
  11. Thread: Too High

    by steve111
    Replies
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    1,837

    I don't really agree that the lines need to be...

    I don't really agree that the lines need to be shorter - after all, this is a Norvel 061 with about 3 times the power of a traditional 1/2a trainer. Even in a decent breeze, 42' lines should be fine....
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    I used to run mine with a 12x6 or 11x7 - it was a...

    I used to run mine with a 12x6 or 11x7 - it was a bugger for vibration, but not prone to overheating/going hard.

    Didn't PAW once try one with an18x6, just to see how long it would take to fail?...
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    Actually, on the 12x5 it seemed to go a bit hard...

    Actually, on the 12x5 it seemed to go a bit hard (and/or hot) towards the end, and on all the props the revs were a little unsteady. I wonder if it could do with a bit more running-in, even though...
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    This engine should be quite happy with an 11x6,...

    This engine should be quite happy with an 11x6, 11x7 or 12x6. If you have any of these, I'd be interested to hear how it goes on them with your newer fuel.
  15. My friend's would turn an APC 7x3 (a really good...

    My friend's would turn an APC 7x3 (a really good prop for it) in the mid-16000s, from memory. By comparison, my PAW 06 does about 16200, and my MP Jet 061BB manages mid-17000s, all on the same prop. ...
  16. Dave: a friend had something very similar happen...

    Dave: a friend had something very similar happen with his converted 061 - the contra had dropped and was moving up and down with the piston. He assumed the head was wrecked. In the end, though, he...
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    No worries mate. My experience, for what little...

    No worries mate. My experience, for what little it's worth, is that the big ones don't flood as easily anyway. A drop too much prime in a big PAW is hardly noticed, whereas in a Schlosser it makes...
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    Well, if it's hydraulically locked, a big diesel...

    Well, if it's hydraulically locked, a big diesel is no different to a little one. Not just 'difficult in the extreme' to get past TDC, but by definition impossible. But 'flooded' can just be 'too...
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    Why?

    Why?
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    They're not especially prone to flooding, but if...

    They're not especially prone to flooding, but if any significant amount of fuel came pouring out of the muffler and air intake, then yes, it was flooded, big time. A couple of choked turns is usually...
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    I use basically the same blend in most of my...

    I use basically the same blend in most of my diesels (except for 1.5 - 2% DII rather than amyl nitrate); both my SS25 and SS30 start and run fine on it. I find getting a good setting is harder with...
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    1,710

    Yes, there were some significant changes when...

    Yes, there were some significant changes when they changed over to the angled-venturi models - not just the obvious external stuff, but things like crankpin diameter (& hence conrods) as well. ...
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    Hi Jenny, 14000 with an 8x5 would be...

    Hi Jenny,

    14000 with an 8x5 would be reasonable for a good .15, but with a 9x5 it's beyond anything I could believe. I don't think even my 19TBR would get close. Even PAW only claim .34 bhp (I...
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    I'm always pretty happy to see around 12000 on a...

    I'm always pretty happy to see around 12000 on a 9x4 with any sport .15 diesel. 11000 with a 9x5 would be in the same ballpark. If you've got a PAW .15 that used to do 14000 on a 9x5, you need to...
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    In answer to your initial question, then, I don't...

    In answer to your initial question, then, I don't think there's any way you've got too little ether.

    Have you tried it with a bigger prop, something like an 8x6 or 9x4? It won't need as much...
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