Plans for the “Stringless Wonder”, by Bill Hannan, and the “Big Smash” P-18 planes for the one design contests at the 2034 EAA Winter Flight Festival are attached for download.

If you build a “Stringless Wonder” for the 2024 EAA Winter Flight Fest, there will be 2 classes competing, Stock and Expert, according to the EAA sponsor. Here are the Rules:

Stock Stringless Wonder (SSS)

Built per the plan, using stock wood sizes, tissue covering, and 5.5 inch max diameter commercially available, unmodified prop (one blade may be sanded to balance prop). The same North Pacific prop as we used for last year’s Boxy Bipe is to be used.
For example, they can be obtained from Sig:
https://sigmfg.com/collections/propellors/products/sig-free-flight-propellers
Or RetroRC: http://retrorc.us.com/ffplasticprop7blue-1-2-1-2-3.aspx
Or Wind-It-Up (Peck):
https://www.wind-it-up.com/collections/props-for-rubber-powered-models/products/pa055-3

Expert Stringless Wonder (ESW)

Build to stock outlines (including hole), using any wood size, any covering, any prop

The “Big Smash” file downloads on two pages

Stringless Wonder P. 1

Stringless Wonder P. 2

Big Smash P. 1 & 2