be careful with your designs and consider not using electric motors to move the chair
so many problems that you may not have thought of including how to move chair in electrical problem, crash landing and loss of power, interference with pacemakers (ac motors), added weight and maintenance requirements.
you simply can't put 10 pounds of SUGAR (yeah right) in a 7 pound sack.
our airline installed a great idea in airline seats and within days the shortcomings of LINE ops made us remove the seats and replace them with the old ones...we lost money on that deal.