Hatz Biplane Association

Gday ,I have purchased a secondhand set of CB-1 plans no 374 and while the full scale wing rib plan page isn't too bad there is a coffee stain obscuring the nose area dimensions .The chap I got them from made me aware of the stain but I would love to get another copy or at least the dimensions for the nose area of the rib just to be sure.Other than that the plans are great and I am trying to make a build area ready to start.Cheers Ross

If you just need the dimensions, we can get those, just let us know what's needed.
As far as a copy, be carefull. Just copying the print may change the dimensions either larger or smaller... no copier make a 100% dimensionally accurate reproduction. If you are going to use the print for a pattern, go back to the website and look for Mark Marino's contact information and ask for a new print from the plotter.

Good luck,
Jeff Moore

Gday Jeff,To tell the truth I didn't think of getting a new copy,Has the rib design changed at all?I am still toying with the idea of the aluminium wing but will still probably go with the wooden wing as it seems to be ,while more work, a little more relaxing.Cheers Ross

My full scale print is from the original CB-1 plans of many moons ago... Clark Y with a 60" cord I believe. It is truss built with square stock, plywood gussets and nose block. I assume the Classic plans are the same.
The reason for the new print suggestion is most people use the full scale print in some way to lay out their jig. I copied the lines to a piece of plywood and worked from there. Others have put the print on their plywood, covered it with a piece of plastic and built the ribs on top of that.
Jeff

JBMoore wrote: Clark Y with a 60" cord I believe.
Jeff

Wouldn't that be a 50" cord?

I knew it had been a long time........!

Thanks for the catch.

Jeff