Variable camber flap system and method

A method of actuating high-lift devices of an aircraft wing, comprising:

• operating a variable camber system to actuate an inboard device, an outboard device, or both, wherein the inboard device and the outboard device are mounted to at least one of a leading edge and a trailing edge of a wing, wherein the variable camber system includes a variable camber trim unit (VCTU) positioned between the inboard device and the outboard device, the VCTU including a speed sum gearbox having an outboard brake and a VCTU electric motor having a power-off brake, and the inboard device drivingly coupled to a central motor having a central brake and the outboard device drivingly coupled to the VCTU;
• and
• wherein the operating the variable camber system includes at least one of actuating the inboard device independent of the outboard device, actuating the outboard device independent of the inboard device, and actuating the inboard and outboard devices in unison.