Antoine Saraf<<antoinesaraf>>
writes:

This is a kind of emergency remote releases for the first meters
of an aerotow flight. You don't lose any second to release and don't lose any
control either with two hands on the basebar. On the other and you have a barrel
release.

1- The remote barrel L/A ratio (direct load/actuation effort): 16.8 maximum
permissible tow tension to remain within the 25 pound actuation requirement:
820lbs

Maximum load tested (also tested at all lower graduations): 300lbs

Video:
http://www.youtube.com/watch?feature=player_embedded&v=rh3-uZptNw0

2- The remote "4 strings"

It is designed to be used in an emergency situation only and experiences
significant wear when actuated under a heavy load. Due to the stepping down and
other reductions through the mechanical advantage, friction, and resistance of
the mechanism, when subjected to a 240 pound tow tension in One Point
configuration the load transmitted to the Trigger Line remains well under two
pounds.

L/A ratio (direct load/actuation effort): 60 A direct force of about 30 pounds
is required to effect a release.