Max ground launch speed for my LAK-17a is 75 kias.

I had many simulated failures during training but only one real break in
service and I climbed away from that.

I'm sure some folks will argue, but my technique is stick full forward NOW
and then recover to controlled flight and decide whether to land (and in
which direction) or climb away. Stick full forward does not result in a
dive if you follow up with proper control inputs.

Oh, yeah... I don't think it's wise to exceed 45 degrees in the climb.


"Bill D" wrote in message
...

There are a bunch of troubling things in this report. I have a lot of
ground launch (auto tow) time, but it's a bit dated, so maybe I've
forgotten. IIRC, our target speeds were on the order of 50MPH or 55MPH in
zero wind, not 70. This was with a Grob and 2-33, but I can't imagine that
70 is right.

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From the DG1000 flight manual:
"Recommended winch launch airspeed 110-130 km/h (60-70 kts.)."

Theoretically, the best airspeed for winch launch is that which give the
angle of attack for best L/D. With the extra wing loading due to the rope
pull, it would certainly be in the 60 - 70 knot range.