Primer lines need to be silver soldered into their fittings. Using RTV to fix a leak is not acceptable and poses a serious fire hazard.
![[Credit: Wikimedia Commons]](https://www.kitplanes.com/wp-content/uploads/2026/07/4_rutan_a_longez.jpg_preview.jpg?w=218&h=150&crop=1 "Rutan Symposium Turns to the Coming Canard Maintenance Crisis")
![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=218&h=150&crop=1 "Phillips 66 Sets Course for Oshkosh With Specials, Seminars—and Popsicles")
![[Credit: Lisa Turner]](https://www.kitplanes.com/wp-content/uploads/2026/02/Fuel-Selector.jpg?w=218&h=150&crop=1 "Fuel Follies")
In Case You Missed It
Making a FABulous Project
This month we are going to wrap up the LED lighting project and (another...
What’s New
Sunbeam light from AeroLEDs, dealer agreement for Titan EXP engines, Snap-on LED Hybrid Light and Pioneer Aircraft’s new wood grip.
Alternative Energies
Electric vehicles and aircraft may be the future, but how will we create the energy to power them while minimizing environmental damage? By Dean Sigler.