![[Credit: Mike Davenport]](https://www.kitplanes.com/wp-content/uploads/2026/08/Over-Stave-Lake-3.jpg?w=534&h=462&crop=1 "Glasair Sportsman 2+2 Build Part 3")
![Coming in for a landing at Humberd’s Farm [All Images Credited to Jon Humberd]](https://www.kitplanes.com/wp-content/uploads/2026/07/9-1.jpg?w=265&h=198&crop=1 "Overcoming Setbacks on the Zenith 750SD Xtreme")
![Humberd and his daughter using the 701 for some farm duty transportation. [All Images Credited to Jon Humberd]](https://www.kitplanes.com/wp-content/uploads/2026/05/1-3.jpg?w=265&h=198&crop=1 "Builder’s Spotlight")
![Checking out East Tennessee scenery from the 701. [Credit: Jon Humberd]](https://www.kitplanes.com/wp-content/uploads/2026/04/3.jpg?w=265&h=198&crop=1 "Builder’s Spotlight")
![[Credit: Jon Humberd]](https://www.kitplanes.com/wp-content/uploads/2026/02/20-2.jpg?w=265&h=198&crop=1 "Epic Is Back")
Fixed Formation
The Bel-Aire 4000 flies on lower wings from a Piper PA-22 Colt and upper wings from a PA-12 Super Cruiser.
Using Level Accelerations to Determine Climb Performance
A faster way to gather data over a wide range of conditions.
In Case You Missed It
Engine Beat
UL Power of Belgium adds two new engines to its product line that are distinguished by the inclusion of Full Authority Digital Engine Control (FADEC). By Steve Ells.
