![[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")
Rotaxs 915 iS is Ready to Roll
It's got a great power-to-weight ratio, but also a complex installation procedure. Don't be surprised if it inspires a new design or two.
Ask the DAR
Questions about operating limitations when changing engines and adding avionics for IFR.
In Case You Missed It
Turbine Temptation: Wiring, Avionics and Plumbing
The systems are simple but space is tight, so plan ahead.
Prop Blade Effects
We often treat the propeller as a uniform “actuator disc” and the slipstream as...
Smooth Out Your Ride
Dynamic propeller balancing can smooth out your ride and reduce wear and tear on engine parts.
