may be used with engine 10 shown in fig1 fig3 is a perspective view of an exemplary basesheet assembly 106 that may be used with gas turbine engine 10 flap system 100 is coupled to an exhaust nozzle such as exhaust system 28 shown in fig1 to facilitate shielding variable geometry system components from high temperature combustion gases exiting the engine more specifically flap system 100 is coupled to the exhaust nozzle such that a flowpath side 102 of flap system 100 is exposed to combustion gases exiting engine accordingly flap system flowpath side 102 defines a portion of the flowpath through the nozzle flap system 100 includes a plurality of backbones 104 and basesheet assemblies 106 extending circumferentially within the engine exhaust nozzle more specifically backbone 104 is exemplary and is known in the art basesheet assembly 106 is coupled within the engine exhaust nozzle by backbone 104 and includes has a leading edge 110 and a trailing edge 112 basesheet assembly leading and trailing edges 110 and 112 respectively are coupled together by a pair of side edges 114 and 116 basesheet assembly 106 also includes an opening 118 extending through basesheet assembly 106 between opposite sides 120 and 122 of basesheet assembly 106 opening 118 is sized to receive a fastener not shown therethrough for securely coupling basesheet assembly 106 to backbone 104 in the exemplary embodiment basesheet side 120 is a flowpath side of basesheet assembly 106 and side 122 is a radially outer side of basesheet assembly 106 leading edge 110 and trailing edge 112 each have a respective width w 1 and w 2 measured between side edges 114 and 116 in the exemplary embodiment basesheet assembly 106 is divergent such that.