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If your Horizon ET has a turn, you have to check for bent battens first and then
for bent spars. If you cannot find a bent leading edge, it is still possible, that one
one of the leading edges has been stressed in a hard landing and this results in
slightly different bending characteristics of both leading edges. This is not always
necessarily critical and the turn can be tuned out by differential batten bending. The
only two battens that should be changed are the two curved tip battens. For
example, if your glider has a right turn in it, the battens on the right hand side would
require an addition of approximately 1/2" to the slow wing (in this case the right
wing).
The camber of the corresponding battens on the fast wing should be decreased by
approximately 1/2". This seems to be the best possible method of tuning a turn out
of a Horizon ET. Tightening the batten tension also has the same effect as
increasing the camber. Having the batten tension slacker improves the handling,
possibly at the expense of glide angle. Pitch trim is accomplished by simply moving
the hang loop on the grip tape, which is on the keel.
To make the glider fly faster, simply move the hang loop forward. The trim speed
covers a range of approximately 7 m.p.h. (Hang loop all the way forward to hang
loop all the way back.)
NOTE: Both hang loops on the Horizon ET are directly in front of the 'A'
frame top fittings and kingpost. The main and back-up hang loops are of different
colors or at least color-coded.
The main hang loop is always the shorter of the two.
