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Old February 22nd 14, 04:52 PM posted to rec.aviation.soaring
Dan Marotta
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Posts: 4,601
Default Does anyone use a tug tow hook that releases automatically when glider kites?

Huh! Sounds good to me!


"GC" wrote in message
eb.com...
On 22/02/2014 16:17, Alan wrote:

...You don't get kiting if you fly normal "high" tow behind the towplane,
if you remain in control.

If you don't remain in control, starting from low tow is not going to
make a lot of difference.


Experience (tens of thousands of aerotows) shows there is an enormous
difference. The inadequate control and time to go from high tow to kiting
is orders of magnitude different from that required to go from low tow to
kiting. In fact, I've never heard of that ever happening. Even with low
time students. Kiting from high tow, however, is apparently so common as
to need a whole new system of electronic whizzbangery and gallons of
bandwidth to stop.

If the tug has just lifted off, being in low tow sounds a bit
difficult,
but that would be a particularly hazardous time.


Yes. Liftoff is a time to be wary and we train accordingly. Nevertheless,
all I can say is that low tow has prevented kiting accidents for many
years. But don't take my word for it, keep this ridiculous discussion
going with another screwball idea for pivoting, autoswivelling,
pitch-sensing, stick-following nonsense.

If the issue is serious - as it was in Australia - flying low tow will
solve it. If it isn't - see my previous post.

GC



As for automatic methods to mitigate the problem, perhaps the solution
is not to modify tow planes, but to modify gliders. If the glider is
in a very high pitch attitude on tow, it might be a good time to
automatically
release.

Another modification might be to attach the tow rope to the top of the
glider.
This would cause the tow force to pitch the glider down.


Is this more of a problem when folks try to tow a slow glider like a
2-33 at
high speeds?

Alan