Length of lines.

[Perry Rose]

  I have a Brodak Strega built from a kit. Power is a Double Star .61, weight is 62 ounces. What length lines would be best for a model like this?

[Trostle]

  I have a Brodak Strega built from a kit. Power is a Double Star .61, weight is 62 ounces. What length lines would be best for a model like this?

Like Ty said.  You will have to find out what works best for you.  Maybe start 63', eye to eye, and work up to the 70' max in 1' increments.  I would imagine you will find something in the neighborhood of 65' to 68', total length that will work best, but this is the sort of thing you have to find for yourself for any particular airplane.  There is no cookbook answere.

Keith

[RC Storick]

Like Ty said.  You will have to find out what works best for you.  Maybe start 63', eye to eye, and work up to the 70' max in 1' increments.  I would imagine you will find something in the neighborhood of 65' to 68', total length that will work best, but this is the sort of thing you have to find for yourself for any particular airplane.  There is no cookbook answere.

Keith

keith you can't use 70 foot lines. Its 70'Max center of handle to center of airplane. On max legnth they are usally around 68 foot. Just a thought. I'm sure its a over sight cause you know that.

[proparc]

As all the other guys stated line length is a trim issue so, you roll how you want. That said, given the weight of the plane and the engine,(Double Star not the strongest 60 out there) 68' center to center is probably going to be about max for that combo. I'd start there.

[Perry Rose]

It sounds like i'm in the ball park. I got 67 footers. I only have two very short test flights on the plane. At least the lines are not too short, I got some room to play.

[Trostle]

It sounds like i'm in the ball park. I got 67 footers. I only have two very short test flights on the plane. At least the lines are not too short, I got some room to play.

For contest work, if you are talking about 67' lines, eye-to-eye, depending on your handle hook-ups, those 67' line might be a bit too long.  If you are talking about the measurement from CL of the airplane to CL of the handle, then fine.

And I would be surprised if you find that that length of line is preferred over something as much as 2 or 3 feet shorter


Keith

[FLOYD CARTER]

Like Keith said:  You need to consider wingspan and the length of your arm!  I think the rule means "no part of the model can fly past the 70' radius" (something like that)

My own lines are 0.018 X 66.5'

Floyd

[Brett Buck]

Like Keith said:  You need to consider wingspan and the length of your arm!  I think the rule means "no part of the model can fly past the 70' radius" (something like that)

   It's from the grip of the handle to the center of the airplane.

Using the definition you use above has resulted in several accidents where someone marked the stunt circle with a 70ft radius, leaving most of the airplane outside the circle. People walked along the outside of the marked circle and got hit. One of those happened to me at a contest in Sacramento in the early 90's, my wingtip hit Paul Isenhower's left shoulder. No lasting damage to Paul, but the impact resulted in, eventually, my wing folding right before the '94 NATs.

   Circles for stunt should be marked at an 80' radius BARE MINIMUM. 85 or 90 is better.

    Brett

[Allan Perret]

I have a 62oz Magnum / DS61 and use 63' lines (i2i).

[Dan McEntee]

    For large models, I always start out with 69 to 70 feet, handle to centerline, and work down from there. It's easier and cheaper to shorten lines than to make new ones, unless you happen to have several sets of spares in different lengths. Any .60 size model should be able to at least fly in circles, climb and dive on this length, and as you get the model sorted out and get a feel for things you can refine it from there. I always go by the handle to center line dimension also, just for simplicity, and that is what the line length rule is all about anyway. Get your line length figured out and comfortable, then make a spare set right away just in case!
   Good luck and have fun,
   Dan McEntee