The Bottom End

What’s inside your engine’s crankcase? Reciprocating aircraft engines come in a variety of different cylinder arrangements—radial, inline, V, and opposed—but most engines used in piston general aviation are horizontally opposed four- and six-cylinder engines. These...

Two Factor Authentication

Strong passwords, frequently changed passwords, biometric scans and two factor authentication are some of the technologies developed to keep information accessible to those who should have it, and away from those who shouldn’t. Every time I have to track down my...

Where Fuel and Air Meet

Basics of piston aircraft engine fuel metering systems If you fly a piston aircraft, chances are it has a spark-ignition (SI) engines that burns gasoline. There also exist compression-ignition (CI) engines—also called diesels—that burn kerosene, but in today’s GA...

March Madness

I just filled out my bracket for this month’s college basketball tournament. If you live outside the US, or you don’t follow sports, it’s an annual ritual where American sports fans try and guess which of 64 teams will win every game over the course...

Planes and Cars

Some thought-provoking comparisons I received a thought-provoking email from AOPA PILOT reader Nate Bissonette of St. Paul, Minnesota that started me thinking about differences between automobiles and GA airplanes. According to data from the U.S. Department of...