Pratt & Whitney FT4 A-9 Twin Pac Gas Turbine (TP4-2) – 42 MW – 1971

ReflowX SKU: REF-5407

Product Details

  • Quantity
    1
  • Availability (Lead Time)
    0-2 Weeks
  • Product Location
    United States
  • Condition
    Used
  • OEM
    ReflowX
  • Equipment code
    Power Generation
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Short Description

Pratt & Whitney FT4 A-9 Twin Pac aero-derivative gas turbine power plant rated at 42 MW, configured for dual-fuel operation with installed package in the USA.

Description

Product Description

This listing consists of a Pratt & Whitney FT4 A-9 Twin Pac gas turbine power plant, configured as an aero-derivative twin-unit package (TP4-2). The system delivers a total output of 42 MW and is designed for 60 Hz operation.

 

The unit was originally manufactured in 1971 and has accumulated 2,108 total operating hours with 288 starts, indicating relatively low usage over its lifecycle. The system remains installed in the USA and is configured for operation on both natural gas and liquid fuels (jet fuel / light distillates) .

 

A detailed condition summary highlights the status of both gas turbine engines within the Twin Pac configuration:

  • Engine 1 underwent a shop repair/overhaul in October 2023, with 1,067 hours and 150 starts since overhaul, and was last operated in October 2025. It has been removed from service due to a chip detector alarm, with the root cause currently unspecified.
  • Engine 2 has accumulated 2,108 total hours and 288 starts, was last operated in November 2025, and is reported to be in service with no known issues .

The package includes a generator and control system, with supporting infrastructure integrated into the installed plant configuration.

 

Specifications

ParameterDetails
ManufacturerPratt & Whitney
ModelFT4 A-9 Twin Pac (TP4-2)
Unit TypeAero-Derivative Gas Turbine Power Plant (Twin Pac)
Year of Manufacture1971
Total Operating Hours2,108 hours
Starts288
Power Output42 MW (Twin Pac total)
Quantity1 unit
LocationUSA
StatusInstalled
FuelNatural Gas / Liquid Fuels (Jet Fuel, Light Distillates)
Frequency60 Hz
Thermal Efficiency~34–35% (simple cycle)

 

Generator & Control System

Generator:

  • Manufacturer: Electric Machinery
  • Rating: 46.5 MVA
  • Voltage: 13.8 kV
  • Power Factor: 0.90
  • Phases: 3
  • Exciter: Brushless (shaft-mounted)
  • Rated Field Current: 480 A
  • Rated Field Voltage: 250 V

Generator Condition:

  • Last overhaul: December 2003
  • Hours since overhaul: 4,438 hours
  • Starts since overhaul: 1,102
  • Current condition: No known issues

Control System:

  • Rockwell ControlLogix PLC-based system (upgraded approximately 2008)
  •  

Condition Summary

  • Twin Pac configuration with two FT4 engines
  • One engine recently overhauled (2023) with limited post-overhaul hours
  • Second engine operational with no reported issues
  • Installed configuration suitable for continued operation or relocation subject to buyer requirements

If you require any further information on this listing please contact info@reflowx.com

Technical Details

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