Al Reid wrote:
"Still wrong since you are not taking efficiency and power factor in to
account and you are using a ficticious voltage."

No, I'm not wrong. I said IF it could actually DRAW 21A at the peak voltage
of 155V, then the math gives you power consupmtion of 4.4HP. Efficiency is
not relevant, as I'm talking purely about consumed power (input power).
Thus, if a 21A peak coincides with a 155V peak, the power consumption at
that moment is 4.4HP. I am NOT talking about power delivered to the cutting
teeth, or wherever else you may choose to measure it, I'm talking about the
total consumed power of the machine.

And, 155V is not ficticious.......it's the peak instantaneous voltage for a
110V sine wave.
(110VACrms / 0.707)

To quote myself:

" Now, if it can DRAW 21A at Vpeak (155V) without turning in to a puddle,
then
it can CONSUME POWER EQUIVALENT to 4.4HP, though it still wouldn't be
cutting wood at that rating."