Crane Aerospace and Electronics offers manual and power actuation systems for all classes of passenger seats through our P.L. Porter brand. P.L. Porter pioneered the Hydrolok, the first hydraulic aircraft seat recline device, in the 1940's and button operated release cables as a companion line. These products remain in our offerings for main cabin seats today along with Mechloks, a line of highly reliable, value priced linear positioners favored by the bus and train seat manufacturers. Power Seat Actuation Systems were introduced in the early 90s to address the increasing demands for luxury in Premium Seat applications. Crane designs custom software controlled applications for all major aircraft seat manufacturers in the world.