![A Zenith STOL CH701 on Zenair amphibious floats rests on a sandbar on the Caribbean island of Guadeloupe. [Credit: Zenith Aircraft]](https://www.kitplanes.com/wp-content/uploads/2026/08/zenair-floats-STOL_CH_701a-Topaz-Gigapixel-2x-scale-Topaz-Gigapixel-2x-scale.jpg?w=324&h=160&crop=1 "Zenith STOL CH 701 at 40: The Iconic ‘Sky Jeep’ Design Audit"){kind=tracking}
In Case You Missed It
Two-axis Electric Trim Controller for Under $50
This homebuilt two-axis electric trim controller has all the functions of the fanciest commercial units, yet it costs less than $50 for the parts.
Design Process: Span and Aspect Ratio
At this point in the design process we have determined the wing area. The...