January 2022

80% rule: faction or fiction

Disclaimer: This is my opinion. Heed at your own risk. Some people on the interwebs like to say you shouldn’t leave a car battery on a concrete floor. This was true — back when batteries had wooden cases—something to do with moisture and swelling. Since batteries haven’t had wooden cases since before I was born, […]

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Trailer stability

Towing / Gerardw

The only empirical data I’ve found on trailer stability is Darling, Tilley, and Gao, published in 2009. Highly recommend reading, although you’ll need some UK → US translation. (Estate car → station wagon, nose mass → tongue weight, tyre → tire). You probably already knew that last one. They found the most important factors are

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