Don Valentine wrote:

We Brits are quite capable of working in metric thank you ;-)

Don't get me wrong, I think the Brits are among the best model
engineers.
But I had the discussion here about 3 years ago: BA is not metric. Look
at the standards of metric threads and you know why.


BA series was created in 1890's

At that time there was _nothing_ like metric threads and this also
explains why BA isn't metric.


Nick

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Motormodelle / Engine Models
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