In Case You Missed It
Ly-Con O-Ring Trick
When you join two halves of a flat aviation engine together, they often weep between the starter and the alternator. Not only is this unsightly, its wasteful and makes completing an overhaul more cumbersome than need be. Enter Ly-Con, whose groovy O-ring process promises to stop leaks before they start.
Laminar- vs. Turbulent-Flow Airfoils
Airfoils break down into two general classes based on the behavior of the boundary layer.