Formal Description Technique
File Delivery Table
fluctuation-dissipation theorem
False Doppler Target
Fan Discharge Temperature
Federal Trust Corporation
Fetal Diagnosis and Therapy
Field Device Tool
File Descriptor Table
First Destination Transportation
Flight Data Transmitter
Florida Department of Transportation
Force Development Test and Experimenta…
Formal Description Techniques
Formal Design Technique
Formatted Data Tape
Frame Due Time
Framework Design Team
Framework Development Team
frequency doubling technology
frequency doubling technology perimetr…
Full Duplex Teletype
Fully Developed Turbulence
Functional Description Table
Functional Dexterity Test