Robert John wrote:

I don't think the positition of the horizon should
make any difference.

It's the position I typically use, so I'm trying to get an idea of how
different it is from what I normally do. Unfortunately, I can't go out
and experiment right now, with a foot of snow on the runway!

So, with a 180 hp Super Cub or Pawnee, say, is the tug canopy on the
horizon, the wing root, wheels, or maybe the tug is an entire "tug"
distance above the horizon?

In mountains it's irrelevant
and different tugs will climb at different rates -
a powerful tug will be more pitched up and adopt a
higher position relative to the horizon than a low
power one (relative to the thrust line, the prop-wash
and the best position of the glider just above the
prop-wash).

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Eric Greenwell
Washington State
USA