"Clutch flight transmission" most likely refers to a B&M "Clutch-Flite," a specialized automatic transmission that replaces the torque converter with a dry clutch, giving it a manual-like launch capability. It's also possible the user is asking about the clutch in a standard automatic transmission, like Chrysler's TorqueFlite, or the general concept of a "clutch" in any "flight" or power transmission system.