During the development phase of the program, each Z10 military attack helicopter was powered by two PWC PT6C-67C turboshaft engines. PWC delivered ten of these development engines to China. Two of the ten development engines were used in China on a ground test rig; six engines were used on three flight test aircraft; and the remaining two engines were used as spare development engines.

PWC交付了10台用於研發的67C

PWC’s development engines were identical to the PT6C-67C engines that PWC was already supplying for a commercial helicopter.

PWC 用於開發的（67C）引擎和PWC提供給商業直升機的（67C）引擎是一模一樣的。