Which file contains unit characteristics used in TPFDD development?

• A. Deployment schedule of events (DSOE).
• B. Time-phased force and deployment list (TPFDL).
• C. Geographical location file (GEOFILE).
• D. Type unit characteristics (TUCHA) file.

Answer: (D)

When planning a deployment with a Time-Phased Force and Deployment Data (TPFDD) set, you need standardized information about each unit type so planners can model forces accurately. The Type Unit Characteristics file, known as TUCHA, holds those unit characteristics—things like unit type codes, equipment, readiness, and related attributes that define what a unit can do and how it contributes to a plan. This data serves as the foundation for interpreting and converting unit types into concrete force capabilities within the TPFDD.

Deployment Schedule of Events (DSOE) focuses on when events occur, not the intrinsic properties of units. The Time-Phased Force and Deployment List (TPFDL) organizes forces and their deployment timing, but it relies on the unit characteristics from TUCHA to describe what each unit type represents. Geographical location file (GEOFILE) provides location and routing information, not unit attributes. So the file containing the essential unit characteristics used in TPFDD development is TUCHA.