![The week ahead: a KC-135 tanker passes over the grounds at EAA AirVenture Oshkosh, where Phillips 66 will set up at tents #430 and #431. [Credit: USDA Forest Service]](https://www.kitplanes.com/wp-content/uploads/2026/07/Screenshot-2026-07-22-at-10.01.04-AM.jpg?w=324&h=160&crop=1 "Phillips 66 Sets Course for Oshkosh With Specials, Seminars—and Popsicles")
In Case You Missed It
Ye Olde Slip Roll
This month’s project is a follow-on to the Pietenpol muffler that was the subject...
Ask the DAR
Repairman certificate eligibility, who to list as the manufacturer, installing ADS-B equipment.
Engine Update: New Life for Old Radials
Barrett Precision Engines has taken the nine-cylinder Vedeneyev M14P radial engine to a whole other level with a fuel-injection upgrade and new ignition system. By Marc Cook.