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The following is reproduced from actual operating manuals


All Universal Models (U-Boats) were built with 16-cylinder turbocharged diesel engines, with the exception of the U23 Model which was built with a 12-cylinder turbocharged diesel engine.


Horsepower:  2,250     Weight: 265,500 lbs.         Engine: FDL-12 V-Type        Fuel Capacity:  3,250 gals.          Trucks: FB-2 (floating bolster)                 

Gear Ratio: 74:18          Minimum Continuous Speed: 11.5 mph          Cooling Water Capacity: 350 gals.          Tractive Effort: 57,2000  

Sand Capacity: 60 cubic feet           Lube Oil Capacity: 300 gals.  

Missouri Pacific's first group of 7 (seven) U23Bs delivered in 1973 came with the AAR-B Trucks.

Standard Configuration for the 4-axel Universal Locomotive Model
Standard Configuration for the 6-axel UniversalLocomotive Model



  3,000     Weight: 388,000 lbs.         Engine: FDL-16 V-Type        Fuel Capacity:  3,250 gals.          Wheels:  40 inches diameter                 

Gear Ratio: 74:18          Minimum Continuous Speed:  9.6 mph         Cooling Water Capacity: 385 gals.         Tractive Effort: 57,2000  

Sand Capacity: 60 cubic feet           Lube Oil Capacity: 380 gals.  


General Electrics Universal Models had three different designs of control stands. The principal difference between the control stands is found in the design of the controller. The controller is the portion of the control stand which contains the reverser, throttle, and dynamic brake or selector lever.


The Three-Lever Control Stand was included on all U25 and U28 models as well as on U30 models built on or before the year 1968 also had this design.
The Selector Lever has six positions which are B, OFF, 1,2,3 and 4. If the above units were used as lead unit, the lever must be placed in the 1 position, B for dynamic braking or OFF when parked. Position 2-4 were used to control trailing units equipped with manual transition.

The Reverse Lever has three positions which are Forward, Nuetral, and Reverse. The position of the reverse lever controls the direction of movement. The reverse lever must be removed from the control stand of trailing units in order to lock the throttle and selector levers.

The Throttle Lever has an idle position, plus eight (8) major and eight (8) intermediate positions. The major positions are makred by number, while the intermediate positions are indicated with either a dot or 1/2 mark. Each numbered throttle position changes the engine speed. The intermediate (one-half mark) position change the amount of excitation.

The application of dynamic brakes is applied by placing the throttle lever in idle position, the selector lever in B and then opening the throttle. The dynamic brake is controlled by the numbered throttle positions.


The Two-Lever Control Stand was included all U23 and U33 models, as well as on several U30 models built after 1967.

The Selector Lever combines the functions of the of the selector lever and the reverse lever. This lever has five (5) positions which are used to select direction of movement as well as the type of operation (motoring or dynamic braking). The mid-position of the selector is OFF. The first position to either side of the OFF position is for motoring. The second position to either side of the OFF position is for dynamic braking.
The selector lever on the controling unit unit must be in the motoring or dynaimc brake position in the direction of movement to develop power or dynamic brake. It should be in the OFF position when the locomotive is parked. On trailing units, this lever is to be removed from the control

The Throttle Lever has an idle position and eight power positions.

The application of dynamic brakes is applied by placing the throttle lever in idle position, moving the selector lever from the motoring position to the dynamic brake position and opening the throttle.

The AAR Standard Engineers Control Stand was used on ALL of the GE Dash-7 series locomotives, as well as on most EMD units. This helped avoid confusion by having to learn several different types of control stands for different models of locomotives. This control stand was also installed on many of the Universal Models on major roads in the late 1970s and early 1980s. Click Here For More Information on the Dash-7 Series Locomotives

The Reverser Lever has three positions: Forward, Neutral (center position) and reverse. The position of the reverser lever on the controlling unit controls the direction of movement (forward or reverse).
When the reverse lever is in neutral position, the throttle can be moved into any position. The dynamic brake lever cannot be be moved from the OFF position unless unless the reverse lever is in forward or reverse position.

The reverser lever can be removed from the control stand when it is in the neutral position. When removed, it locks both the throttle and dynamic brake levers in idle and off positions. The reverser lever is to be removed from the control stand on all trailing units in a locomotive consist.

The Throttle Lever has ten positions: STOP, Idle, and Eight (8) power positions.

The throttle is placed in the STOP position by pulling the throttle lever outward, away from the control stand, and moving it forward from idle to stop. This position shuts down all units in the locomotive consist except when the engine control switch is in START position.

The idle position allows the engine to run at idle speed, but no power is developed.

Positions 1-8 will increase the engine speed. In each throttle position a predetermined ampere output is developed.

The Dynamic Brake Lever has three (3) positions: OFF, Set-up, and Braking Zone.

OFF is when the lever is placed in this position when dynamic brakes are not being used.

Set-up establishes the dynamic braking circuits.

Braking Zone: This zone is numbered 1 to 8. The braking effort is increased as the lever is advanced through the braking zone.



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 l Last Update to this page: 16 April, 2008
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