Tag: Stephen Osborne
![A SubSonex personal jet in aerobatic flight. Thea design will expand with a two-place model kit in the months ahead. [Credit: Sonex Aircraft]](https://www.kitplanes.com/wp-content/uploads/2026/08/SubSonex_Acro.jpg?w=324&h=160&crop=1 "Sonex Reopens")
In Case You Missed It
Ask the DAR
SLSA max empty weight, sailplane condition inspections, licensing a RANS S-7LS as an ELSA.
Design Process: Vertical Tail Planform
The size and shape of the planform of the vertical tail determine its ability...
Metal Working 11-part Series
Now the exceedingly popular and extraordinarily useful 11-part Build YourSkills: Metal Series is available as a single PDF. This must-have additionto your library was written by RV-7 builder Dan Checkoway and carefullyillustrated for first-time metal-workers and old hands alike. Mosteverything you need to now, from material handling and cutting to deburring,drilling and riveting is in this series.
