An accessory system for a gas turbine engine having a driveshaft with an axis of rotation, the accessory system comprising: a towershaft configured to be coupled to the driveshaft and driven directly by the driveshaft along a towershaft axis of rotation transverse to the axis of rotation of the gas turbine engine, the towershaft including a towershaft bevel gear at a distal end; a shaft including a first shaft bevel gear coupled to the towershaft bevel gear, a second shaft bevel gear and a third shaft bevel gear, the shaft rotatable by the towershaft along a shaft axis of rotation, the shaft axis of rotation transverse to the towershaft axis of rotation and substantially parallel to the axis of rotation of the gas turbine engine; and first, second, third, fourth and fifth accessory drive shafts (306, 308, 310, 312, 314) having respective first, second, third, fourth and fifth accessory bevel gears (172, 174, 330, 176, 178), the first, second, third and fourth accessory drive shafts (306, 308, 310, 312) having respective first, second, third and fourth accessory axes of rotation (R1a, R2a, R3a, R4a), wherein the first accessory bevel gear meshingly engages the second shaft bevel gear, the second accessory bevel gear meshingly engages the first accessory bevel gear, the third accessory bevel gear meshingly engages the second accessory bevel gear, the fourth accessory bevel gear meshingly engages the third accessory bevel gear and the fifth accessory bevel gear meshingly engages the third shaft bevel gear; wherein the first, second, third and fourth accessory axes of rotation (R1a, R2a, R3a, R4a) intersect the shaft axis of rotation at a common point, whereby, the first, second, third and fourth accessory axes of rotation (R1a, R2a, R3a, R4a) are spaced apart in a circular manner. a towershaft configured to be coupled to the driveshaft and driven directly by the driveshaft along a towershaft axis of rotation transverse to the axis of rotation of the gas turbine engine, the towershaft including a towershaft bevel gear at a distal end; a shaft including a first shaft bevel gear coupled to the towershaft bevel gear, a second shaft bevel gear and a third shaft bevel gear, the shaft rotatable by the towershaft along a shaft axis of rotation, the shaft axis of rotation transverse to the towershaft axis of rotation and substantially parallel to the axis of rotation of the gas turbine engine; and first, second, third, fourth and fifth accessory drive shafts (306, 308, 310, 312, 314) having respective first, second, third, fourth and fifth accessory bevel gears (172, 174, 330, 176, 178), the first, second, third and fourth accessory drive shafts (306, 308, 310, 312) having respective first, second, third and fourth accessory axes of rotation (R1a, R2a, R3a, R4a), wherein the first accessory bevel gear meshingly engages the second shaft bevel gear, the second accessory bevel gear meshingly engages the first accessory bevel gear, the third accessory bevel gear meshingly engages the second accessory bevel gear, the fourth accessory bevel gear meshingly engages the third accessory bevel gear and the fifth accessory bevel gear meshingly engages the third shaft bevel gear; wherein the first, second, third and fourth accessory axes of rotation (R1a, R2a, R3a, R4a) intersect the shaft axis of rotation at a common point, whereby, the first, second, third and fourth accessory axes of rotation (R1a, R2a, R3a, R4a) are spaced apart in a circular manner.