Tom Kuffel
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.
Simplified One-Off Electronic Projects
As homebuilders, we are accustomed to doing a lot of preliminary and/or tooling work to build a couple of pieces for our aircraft. Tom Kuffel created an auxiliary fuel transfer pump controller for his GlaStar Sportsman for next to nothing, a real savings over the retail price of $300, and he describes how he did it.



![A 30-Year Love Affair With My Stinson The author flying his Sinson 108-2 Voyager in the skies above British Columbia, Canada. [Credit: Mike Davenport]](https://www.kitplanes.com/wp-content/uploads/2026/03/CF-EZB-over-water-D.-Cardy-photo-324x160.jpg)

