3W Airplane Builder's Guide
Originally written to show construction of the
3W 40% Extra 330S. Also suitable for most 3W aerobatic aircraft kits.

3W Single Cylinder Motor Mounting Examples

3W Motor Starting Procedures

3W Motor Break-in Procedures

Carburetor Manifold Installation Notes...
For 3W 70-212 Multi-Cylinder Motors or
60K - 75iUS Single Cylinder Motors