I AM NOT SELLING A KIT, only a new, full-size Air Trails PLAN & construction article to build yourself a 35" span WACO UMF UC scale model. 

The PLAN has all the parts patterns on it and even a pen & ink illustration of how to build a round balsa cowl---so you don't have to make any dummy engine cylinders.

As a BONUS I include a copy of an excellent three plate scale 3-view document, as well as an older article on how to build a radial cowl.

My last picture is another WACO biplane PLAN I sell separately, the control line WACO Y-3 from Mechanix Illustrated.

Your plan will come folded in a manila envelope.