Thorp Air Command - T18.net

I am looking at a flying T-18 to purchase and have a question.

In looking through the logbooks, I see it is currently on its 4th voltage regulator in 500 hours in the air, latest is a Plane Power R1224. As best I can tell it is the original alternator from 1988, don’t know the model, no record of it being replaced.

Isn’t it more probable that the alternator keeps frying the regulators vs a string of bad regulations?

I would have to agree that whatever it is, its probably not the voltage regulator.

That is a well designed unit. The electrical system HAS to be taken as a whole. Obviously something is not right. My first thought would be a bad battery, or a battery with a cell down. But again, you cannot take one thing out of context. A good mechanic can diagnose the source of distress.
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