> The consensus (in the absence of definite confirmation from Atlas) was that the two vertical motors were necessary for all the electronic package that the much larger three-rail market wanted.
> Jace Kahn The space needed for electronics is part of the reason for vertical motors. The other part of the reason is that U-joints do not perform well on very sharp curves. Apparently the locos do not run smoothly around sharp curves because of the sharp angles the U-joints must accommodate. With motors mounted on the trucks, there are no U-joints and smoother operation around sharp curves is much better. Or so I am told... Cheers..Ed L. www.sscale.org
