Hi All:
A vintage combat plane question:
How does one adjust the recommended line sweep and wing tip weights of the combat planes designed during the years when .015" lines were the rule so they will fly straight and true during turns with .018" lines?
FWIW: I long ago switched over to .018" lines to fly my vintage combat planes*, mostly with good success. However, some of them have dragged their outside wings during maneuvers, which tells me too much wingtip weight for the lines.
* Way back when, I have had line breaks with .015" from simply flying tight maneuvers with a very fast and tight turning airplanes. I have had ZERO such line breaks since switching to .018" after the AMA combat rules changed to .018" lines.
As for line sweep:
I THOUGHT I read somewhere that adding about 1/2" of sweep to the lines of an .015" combat plane would put you in the ball park in regards to added line drag... but what about wingtip weight? How do I determine how much wingtip weight would be required for a vintage combat plane to be flown on .018" lines? Example: The Combat Cat was designed for .015" x 60' lines. The plans call for 1 oz. of wingtip weight. Should this be adjusted for the .018" lines, or would adding a bit more line sweep do the trick?
Help me Obi Wan... for you are my only hope.
Andre