In article . com, on 3
May 2006 17:30:05 -0700, Lawrence wrote:

What you are referring to is a hydrostatic transmission and would
include reverse. You say most machines have one? Can you could give
even one example?


I'm not the person to whom you posed the question, and I don't know if
I'd agree that "most" new mowers have continuously variable drive - but
certainly, it's very common. It's also been around for at least half a
dozen years now - maybe longer.

These are home model, 21" (a few 22") walk-behind, self-propelled
mowers.

Toro "Personal Pace"

Lawn-Boy "Sens-a-Speed"

Husqvarna "Auto Walk"

Google on "Variable speed lawn mower" to find these and lots more.


--
Seth Goodman