Avionics Report

August 1999 Issue

Sweethearts and Dogs

Engines, that is. Some can be counted on to soldier to TBO and beyond, others are the stuff of night sweats. Here’s a survey.

When aircraft owners, brokers and mechanics talk about engines, the word “bulletproof” comes up occasionally. We don’t have a precise definition but we know what it means: An engine relatively free of operating foibles and likely to make TBO without undue strain.

On the other hand, no single adjective seems to describe the opposite end of the spectrum: “Dog” comes to mind, but when applied to some engines, it’s an insult to every canine that ever lived.

How ever you describe them, the world of aircraft engines is defined by extremes: The good is very good, the bad is usually unspeakable and often enough to cause the owner to take up boating or golf instead of flying. Fortunately fo...

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