Winch is often seen to be used in the F3B Championship recently. A for its
performance, it is proved at all by the fact that more than 90% of European
fliers use this winch. It is apprehended that such winch as one hand supporting
may not have enough strength of mechanism for F3B. But there is no need
to have such apprehension. In addition, it works very silent and be quite
powerful. Hollenbeck winch is one of highly sophisticated product. There
are two types of drums and supporting frames used in this winch respectively.
The following picture
shows that the return pulley is down when it is unused, Only at launching,
the pulley is up. The reason is explained at the page for
return pulley. As for the vertical
movement of the pulley, the return pulley made by Ober Flugmodellbau in
Germany seems to be smoother than that of Hollenbeck, it is because Hollenbeck
raises very quickly when a glider reaches at some altitude with sound "Casheen".
However Ober pulley is raised little by little. The return pulley of Hollenbeck
is very firmly made and reliable. If you ask me, the disadvantage of Hollenbeck
is heavy. The quick connector
attached with Buttery is not within standard delivery.
Removable plastics drum types such that plastic drums of two sizes
of diameter can be used according to the desired torque. There are
two bolts on the left side of drum. Taking bolts off, plastic pipe
can be removed. The picture named as one hand supporting type shows
two string outlet holes for the different size drums. (Length of drum:
Removable aluminum drum types such that drum itself can be removable,There
is bolt at the end of the drum.(Length of drum 250mm).
Folding frame type (The following pictures except the last one are
of this type). It is comapct and convenient to carry them.
Box type (The last picture)