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Type: Posts; User: abufletcher

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  1. But I gotta say...if you guys really wanna do a...

    But I gotta say...if you guys really wanna do a WWI model, it really should have two wings! :D I always read about guys wanting to "give WWI a try" but then end up picking the least WWI models.
    ...
  2. If you're not going exact scale, it's quite...

    If you're not going exact scale, it's quite simple to "hide" the ailerons on a wing-warping type. One approach is to use narrow full-span "barn-door" style ailerons and then cover the hinge line...
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    Interesting: ...

    Interesting:

    http://www.ultimate-jets.net/collections/flight-controls-hardware/products/xicoy-digital-cg-machine
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    I'll need to remove the prop and the cowl and...

    I'll need to remove the prop and the cowl and then run through the programming steps...which basically sets the glow thresholds.
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    Here are the instructions for "programming" the...

    Here are the instructions for "programming" the GLOW7 LP and the start procedure verbatim from the manual.

    Automatic Programming Mode

    For visible controlling screw off one plug, put the plug...
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    You might just have hit the nail on the head!!! ...

    You might just have hit the nail on the head!!! I was just re-reading your comment (now that I'm in the US) and I just realized something! For the test stand runs I had long ago set up a separate...
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    I'm wondering if the MICROSENS unit retains the...

    I'm wondering if the MICROSENS unit retains the settings when you remove the battery for charging. It would seem ridiculous if this were so, but last time I ran the engine I did have to redo the...
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    Well...it's YEARS later but I do finally have the...

    Well...it's YEARS later but I do finally have the Seidel/UMS in a model. Not yet a proper WWI scale model, but at least a model. I bought a 3m wingspan ARF of the Paulistinha P-56 and grafted the...
  9. Took it to the field today. Learned a few things...

    Took it to the field today. Learned a few things about how to get it all packed in the van (along with the smaller version) and field assembly time, but unfortunately, I wasn't able to get the...
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    Funny you should suggest this. Last Sunday at...

    Funny you should suggest this. Last Sunday at the field I did indeed look at the CG on the smaller model. As far as I can judge eyeballing the two models they are the same. The smaller one is...
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    That 160g (plus the hot glue) was based entirely...

    That 160g (plus the hot glue) was based entirely on a visual inspection. That is, I propped the model up on the cones at the 124mm mark and added weight to the tail until it was level. Once I bring...
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    I was just confused because I've never ever had a...

    I was just confused because I've never ever had a model where I've had to add weight to the tail. Also the smaller 80" Paulistinha does indeed balance, without any added weight, exactly at the...
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    You mean I can't just spray the hot pink directly...

    You mean I can't just spray the hot pink directly on the cylinders? :eek:
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    That's not the first (and probably not the last)...

    That's not the first (and probably not the last) time I've been accused of over-thinking a problem. ;) BTW, in have this company's smaller P-56 (80" wingspan) and the suggested CG was good on...
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    I've got a pretty good handle on the balance now....

    I've got a pretty good handle on the balance now. I'll add the weight to the tail and then once I've got the HF digital balance run the numbers again and do a final visual inspection.
  16. I was thinking of the foam poured into the mold...

    I was thinking of the foam poured into the mold during casting as shown in one of the videos I posted. It might solve the problem of the rubber collapsing.
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    The simplest fix would be just to put a 50g...

    The simplest fix would be just to put a 50g weight in the tail section.
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    I've had the engine for several years...

    I've had the engine for several years anticipating its use in 1/4 scale WWI project. When I saw this ARF for sale, it looked like the perfect platform to get some flying time on this engine...and...
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    My family lives in SoCal, so that's home. Yeah,...

    My family lives in SoCal, so that's home. Yeah, it would be nice to put a face to some of our online friends. :D
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    I know what you mean. It is worth noting that...

    I know what you mean. It is worth noting that the wing cord is 440mm so that 124mm position is at 28% MAC. Many modelers prefer a conservative 20-25% MAC for a maiden flight. Moving the CG forward...
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    http://adamone.rchomepage.com/cg_calc.htm

    http://adamone.rchomepage.com/cg_calc.htm
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    I've never had a model that was this...

    I've never had a model that was this "engine-heavy" and I think that's throwing off my thinking. I'm used to short-nosed WWI models which are almost always tail-heavy and need weight up front...and...
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    At the recommended CG the nose was significantly...

    At the recommended CG the nose was significantly down. I'd guess around a 10 degree angle. It seemed a bit much so I was considering putting 25g in the tail. That brings it up to about a 5 degree...
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    The method described on previous pages is a...

    The method described on previous pages is a stripped down version for modelers. It only needs two weights and three distances.
  25. https://www.youtube.com/watch?v=sOyBawt1-Ec

    https://www.youtube.com/watch?v=sOyBawt1-Ec
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