First iteration is fifteen inches tall, made of layers of heavy paper in a shape quite close to actual, visually it looks roughly similar in weight, weight distribution, and weighted to estimate structure retained by VS. No "Rudder" but the overall dimensions mimic the two panels. Dropped from twelve feet then fifteen, both times drops like a lawn dart, with a very slow spiral. Bottom down, still as a stone, no flutter of any kind
Hi Bearfoil,
may I ask where the Cg of that model is ?
I suspect it's rather low, i.e. below 1/3rd or even rather 1/4th of the span of that model.
What's the taper on your model?
Could you make a small drawing with dimensions and Cg ?
Maybe I'm just gone take me some Depron and try it myself.
Unfortunately that is where we would need to know the real mass distribution.
Edit:
Found something usefull on mass distribution of the real fin, albeit more anecdotal, pls. see link in post below
/Edit