Try Sean's lines from his model if he brings them. 67 feet is just way too long for a Ringmaster even in perfect trim. Keep us posted on the next test session.
Type at you later,
Dan McEntee
We did use my lines.
Back when I built my ringmaster (one of the early RSM kits) it came out lighter than anticipated at 26oz and, coupled with an L&J Fox 35, I knew it was going to move. Could have put 25 on it but I felt at the time that a ringmaster needs a Fox on it! I put longer-than-norm lines on it to run the motor at a speed that it liked while keeping the lap times down, and it measures out at 67' nose to handle.
A few 500+ point scores and some wins in classic against some stiff Texas/Oklahoma competition later, I've hypothesized that a small model on long lines gives the impression that its turning tighter than it really is. While being a light ringmaster, it is still just a ringmaster and wont do 5' turns. Again its just a theory but its been working for almost 10 years! I tried shorter lines on a whim one time but went back shortly after. I use THE same lines on my Frisky Pete powered by an OS25LA that, again, delivers more power than it needs. I'm sure ill hear about using the same lines on multiple models from the old man
but I was in a hurry to get the model done. I got lucky building it and didn't need to touch the handle, and have since been too busy/lazy/combination thereof to cut new lines for it.
Fast forward to a couple weeks ago, Fred only had .018 and .021 diameter lines from his combat stuff so I brought mine along. We got his set up exactly like mine and it flies just like mine except it had an inboard roll due to a slight warp in the wing that I didn't catch until we were out in the field and were ill-equipped to fix it there, though we got it straightend out once we got home, but it was good enough for the intents and purposes of the day.
Folks: The tips are always appreciated but keep in mind that were not trimming an Impact to take to the Nat's next week--just some lazy sunday sport flying. Model flies great minus the warp. Only changes from here will be for "creature comfort". Controls could probably be slowed a bit, as I like my controls a bit quicker than most.
Fred: It feels light on the line tension for two reasons. One is that warp. Well keep trimming on it when I get back but once the wings are level and everything is dialed in, it wont feel quite as light when you raise the nose. The second is the fact that it is not a screaming combat ship.
Stunt models aren't able to do upwind maneuvers very well so the line tension isn't as significant. Start wingovers maneuvers upwind, do everything else with the wind to your back, and it will stay out there. If you get some .015" lines and want to take them down a few feet, that's cool, just do it a one or two feet at a time. You can always shorten lines, but they have yet to invent a device that will make lines longer (I could write a book full of dry but informative parental stunt tips passed down to me
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