![The Spirit Engineering SE-1 gleaming in repose. [Credit: Andrew Robinson]](https://www.kitplanes.com/wp-content/uploads/2026/09/IMG_8605.jpg?w=534&h=462&crop=1 "Spirit Engineering SE-1")
![The Hatz Biplane, NX71VH, re-engineered to be powered by a 124 hp radial engine. [Credit: Hatz Biplane Association]](https://www.kitplanes.com/wp-content/uploads/2026/09/Hatz-Bantam-Radial-124hp_1000004521-Topaz-Gigapixel-2x-scale.jpg?w=265&h=198&crop=1 "Airplane Almost No One Knows, Part One"){kind=tracking}
![[Credit: CubCrafters]](https://www.kitplanes.com/wp-content/uploads/2026/09/DSC04228.jpg?w=265&h=198&crop=1 "CubCrafters’ New Turboprop MOSAIC LSA")
![A compact H3R Halon 1211 extinguisher, sized for a two-seat cockpit and safe on energized electrical fires. [Credit: H3R Aviation]](https://www.kitplanes.com/wp-content/uploads/2026/09/mfr_H3R_A344T_Halon_1p25lb.jpg_preview-Topaz-Gigapixel-2x-scale.jpg?w=265&h=198&crop=1 "Choosing the Right Cockpit Fire Extinguisher for Your Aircraft"){kind=tracking}
![The Zenith CH701 outside the hangar at SMX, fresh from paint. The stars-and-stripes theme marks America’s 250th and the CH701’s 40th anniversary. [Credit: Carson Stilson]](https://www.kitplanes.com/wp-content/uploads/2026/09/IMG_1726.jpg?w=265&h=198&crop=1 "Zenith CH 701: A Proof of Concept Homebuilt on a Budget")
Are You Shorthanding?
If you're not careful, your non-building friends will find a way to change the subject.
Crew Coordination, Working the Weather
Having a reliable and well-trained partner can help to evaluate not only a course of action—but the decision-making process that goes into that plan.
Marketability
The manufacturer must be able to sell enough airplanes to stay in business and make some money.
Second Chance Six
Part 10: small, important projects— brake lines, fuel lines, baffling and fairings.
In Case You Missed It
2013 Plansbuilt Aircraft Buyer’s Guide
There are developments in the world of plansbuilt designs. Here’s what’s new, what’s old (but still going strong, such as the Pietenpol Air Camper) and what’s on the horizon. By Mary Bernard.
Laps and Lapping
Lapping was an important step featured in two recent columns. Last month’s gauge block...