Can-annular combustor array for a gas turbine having oval or elliptical can heads twisted among themselves

The present application provides a clocked combustor can array (370) for coherence reduction in a gas turbine engine having a number of combustor cans (380) positioned in a circumferential array (300). A first set (375) of the plurality of combustor cans (380) comprises a first orientation (385); and a second set (390) of the plurality of combustor cans (380) comprises a second orientation (400). The first orientation (385) may be in a clocked position of about ninety degrees from the second orientation (400). The combustor cans (380) comprise oval or elliptical head ends and a plurality of fuel nozzles with vanes optionally oriented clockwise and counter-clock wise.