The present invention provides a system for supporting and releasing a
twin fall lifeboat, comprising a pair of hooks releasably engaged with a
corresponding pair of lifting links, and a lifeboat release assembly
including a release handle, a release arm, a weighted rack, and a pair of
flexible cables attached at first ends to the rack and attached at second
ends to the hooks, wherein the release handle is attached to the release
arm at a pivot point, wherein the release arm includes a wheel disposed
within a wheel encasement attached to the weighted rack, wherein the
system includes an engaged configuration in which the lifting links are
secured by the hooks, and wherein the release handle is pulled by an
operator, rotating the release arm about the boss, thereby lifting the
weighted rack and pulling the flexible cables release the lifting links
from the hooks substantially simultaneously. The hooks provide positive
locking under load because of a load over center design, wherein the load
is in line with the center of hook rotation, thereby preventing the hook
from opening inadvertently and eliminating the need for a hydrostatic
device.