UH-60a PPC Program
Version 2.0
Copyright 2001, James M. Eli

This program quickly and easily calculates a U.S. Army Performance Planning Card for the UH-60a Blackhawk helicopter.

Updated to include many portions of the new TC 1-212 procedures:

• Maximum hover height
• Maximum RBS angle
• Critical Torque
• Maximum SE Torque - Cruise
• Zero Fuel Weight
• HIT Check
• MTF HIT Baseline
• MTF Autorotation RPM
• MTF Maximum Power Computations (ETF)

The Program Inputs Include:

• FAT
• PA
• GWt
• ETF
• Wheel Height
• Drag
• Dual & Single-Engine IAS
• Engine Anti-Ice
• Cabin Heater
• HIRSS mode

Hover Outputs:

• Torque Ratio
• Maximum Troque
• Maximum Gwt IGE/OGE
• Go/No-Go Torque IGE/OGE
• Hover Torque

Cruise Outputs:

• Critical Torque
• Maximum SE Torque
• Cruise Power
• Cruise Fuel Flow
• Cruise TAS
• Maximum Range & Endurance IAS
• Single-Engine Minimum/Maximum IAS
• Single-Engine Maximum Gwt
• Vne

Miscellaneous Outputs:

• Density Altitude
• Retreating Blade Stall Onset
• Turbulence Pentration IAS
• Maximum Rate of Climb IAS & FPM
• Starter Limits
• B/U Hydraulic Pump Limits
• Range and Endurance [time & distance]
• Maximum OGE Hover Height
• Zero Fuel Weight

The algorithms used in this program have been extensively tested to ensure accuracy, however it is acknowledged that errors and omissions do exist. In all cases of discrepancies, the aircraft Operator's Manual and the pilot's best judgement are the final authority for resolving any disparities. Use this program at your own risk.