✈️ I flew KC-135s for 24 years, and I can tell you this: there was NO “chemtrail” ON/OFF switch in the cockpit. But what you’re seeing behind an airplane can be very real—and the science behind it is absolutely fascinating. 🌤️
I get asked about two things all the time: What causes chemtrails? And why do airplanes create clouds around and behind them?
Let’s start with the first one. In all my years flying Air Force aircraft, there was never a “chemtrail” switch, system, or secret button in the cockpit. What people often see behind high-flying aircraft are contrails, which form when hot engine exhaust meets very cold, moist air at altitude.
But there is another incredible phenomenon that pilots see up close.
The wings of an airplane are airfoils, and when they generate lift, they create changes in air pressure and swirling air around the wingtips. In moist conditions, that can actually make condensation visible.
The KC-135, with its 707-like design, could produce these effects just like its commercial airliner sibling. ✈️
Go sit at the picnic In-n-Out picnic benches at LAX, and you can sometimes see this phenomenon in spectacular detail.
It doesn’t matter whether you’re watching a Boeing 777, a small general aviation airplane, or even the Space Shuttle. When the conditions are right, the airflow around the wings can become visible.
And then comes my favorite example…
🦉 An owl flying through a cloud of tiny bubbles.
The owl’s wings are airfoils, too. As the bird flies through the bubbles, you can actually see the airflow rolling off its wings and forming wake turbulence and wingtip vortices.
Think about that for a second: the same basic aerodynamic principles that affect a KC-135, a 777, and the Space Shuttle are happening on an owl’s wings.
That’s what makes aviation so amazing.
I’ve spent decades flying airplanes, and I’m still fascinated by the fact that something we normally can’t see—airflow, pressure changes, condensation, and wingtip vortices—can suddenly become visible under the right conditions.
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