Equipment Sales
Tel: (770) 422-7230
Fax: (770) 428-7315
Parts Sales
Tel: (800) 989-8499
Fax: (770) 422-8730
Online
www.tugtech.com
The Davco GP400-120 ground power unit is a
diesel-powered generator that provides regulated
120 kVA, 400 Hz, 115/200 VAC, 3-phase power
to aircraft. Simplicity, ease of service and
maintenance, durability and per-formance were
the primary design objectives. With the 28.5
VDC rectifier option, the unit can also provide
power to air-craft requiring 28 VDC at 500 A
continuous and 2000 A peak.
Model GP400-120
Aircraft Ground Power Unit
If it doesnt say TUG, its not TUG TUFF
Providing Ground Support
Solutions Worldwide
Model shown above includes additional options.
Standard features include:
Mounted on 4-wheel trailer constructed of 2" X
4" rectangular steel tubing with all cross
members and motor mounts welded to the
frame
Front axle has heavy duty 5th wheel type
steering with
Brake locked when tow bar is latched in up
position
Steel enclosure with updraft. Side doors are
removable
All AC/DC and engine controls mounted in
weather- protected box with hinged door for
easy access
Deep Sea Generator set controller for engine
control and monitoring.
Engine protection controlled by engine ECM.
Trouble codes displayed on Deeps Sea
controller as well as diagnostic switch with a
flashing light.
Dual cable trays
Engine block heater
Air pre-heat
Specifications are subject to change without notice. GP400-120/1170 Rev. 08/09
Engine - Cummins
Model QSB-6.7-203HP@2000 RPM
Type 6-cylinder diesel, common rail,
turbo-charged
Displacement 6.7 L
Horsepower 203 bhp
Fuel System
Type Jet A or Diesel
Tank/Capacity Dual external steel with braided steel fuel
lines and 3 in (7.6 cm) fill / 110 gal (416.3 L)
Electrical System
Starting System 12 VDC
Battery 2 Group 31 batteries
Gauges All Engine display functions are handled by the
Deep Sea controller
Generator
Manufacturer Marathon 120 kW, 400 Hz
Operating Speed 2000 rpm
Aircraft Power Cable
(2) 30 ft (9.1 m) AC power cables, Mil. Spec. with molded plug (6 wires)
Dimensions Base
Length (overall) 138 in (350.5 cm)
Width 77 in (195.5 cm)
Height 67 in (170.2 cm)
Weight (dry) 5500 lb (2,494 kg)
Weight w/ rectifier 6000 lb (2,721 kg)
Max Towing Speed 15 mi/h (24.1 km/h)
Wheels/Tires 6 X 9 pneumatic tires mounted on 5-lug steel wheels
Engine Controls (ECU)
Over-speed Shutdown Low Oil Pressure Shutdown
High Water Temperature Shutdown Automatic Start
Over Crank Shutdown Electronic Governor
400 Hz Controls and Gauges
Deep Sea Controller has 4 line display for generator
functions
(2) Power Cable Switches (Toggle)
(2) Cable Contactor Switches (momentary toggle)
Voltage Adjust Rheostat
Aircraft Protection
All models automatically open the contactor and remove
power to the aircraft for any of the following reasons:
Over Voltage
Under Voltage
Over Frequency
Under Frequency
The contactor will not close and supply power to the
aircraft until the problem is corrected.
Optional Equipment
Low fuel light
Low fuel shut down
Extra length power cable
Convenience receptacle 60 Hz 15A
Safety beacon
Rectifier - provides 28.5 VDC, 500 A continuous -
2000 peak power, includes 30 ft (9.1 m) Mil.
Spec. cable with molded plug (2 wires), volt-
meter, ammeter, cable power switch (toggle)
and pilot light.
Specifications Model GP400-120 Aircraft Ground Power Unit
Equipment Sales
1995 Duncan Dr. Kennesaw, GA 30014 USA
Tel: (770) 422-7230 Fax: (770) 428-8315
www.tugtech.com
TUG Genuine Parts
TUG Parts: (800) 989-8499(770)422-8021
Fax (770) 422-8730
www.tugparts.com
