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Dynamic brake simulation 

When using the train brake at speeds above 4mph, the class 91 will use the dynamic 
brake to contribute to the braking effort. As a result, the bogie brake cylinder 
pressure gauge will remain at 0 during braking, above 8mph. Between 8 and 4mph, 
the air brake is blended in and the bogie brake cylinder pressure gauge will start 
registering pressure until the full pressure for the selected brake notch is reached, at 
4mph.  

Speed set cruise control 

The driver can select a speed to maintain by using the rotary switch available, in 
5mph increments. Selecting a speed of 0mph disables the cruise control. The cruise 
control will activate only if the power handle is away from off, and the power used 
will depend on the power handle position. Once the target speed is reached, the 
power is cut back automatically in order to maintain it. If required, the dynamic brake 
may activate to maintain the speed. 

Please note that for track with a speed limit of 125mph, the simulator will start 
recording overspeed as the train goes above 125mph, even by 0.1mph. Be aware 
then that when setting the cruise control to 125mph, the train can, and most likely 
will, go slightly above that, resulting in the simulator recording speed violations.

 

Neutral section functionality 

The class 91 and Mk4 DVT will react to the neutral sections available on the WCML 
Over Shap route. On top of this, they will also function with the neutral sections 
present in the three included scenarios. These have been placed using our own 

markers and signage which are available in the ‘AP/Common’ object set filter folder.

 

Improved class 91 ‘blunt

-

end’ simulation

 

The class 91 has scripting so that it can be driven as naturally as possible from both 
cab ends. To allow this, it is required to tell our scripting which cab end you are 
currently driving from. When entering a cab that is inactive, there is a large 
inscription in the cab window, telling the driver to either p

ress ‘Ctrl+1’ 

to activate the 

no.1 cab, or ‘Ctrl

+2

 to activate the no.2 end cab. Doing this allows you to use the 

reverser as you would in reality, rather than the reverse logic which was present in 
the default set up. 

 

Summary of Contents for Class 91/Mk4

Page 1: ...ries 3 Keyboard controls 6 Features 7 Dynamic brake simulation 8 Speed set cruise control 8 Neutral section functionality 8 Improved class 91 blunt end simulation 8 Setting up the driver s cab 9 How t...

Page 2: ...you have extracted the files from the zip file 3 Now find the exe file called Class 91 Mk4 Enhancement Pack Double click this file 4 Follow the steps and by the end of the process the main part of thi...

Page 3: ...Page 3 Liveries GNER GNER AP Ex GNER National Express East Coast Ex GNER NXEC AP...

Page 4: ...Page 4 National Express East Coast NXEC AP Ex GNER East Coast Ex GNER EC AP...

Page 5: ...Page 5 Ex National Express East Coast East Coast Ex NXEC EC AP East Coast East Coast AP...

Page 6: ...gnal M Exterior lights switch CLOCKWISE class 91 no 1 cab only Shift M Exterior lights switch ANTI CLOCKWISE class 91 no 1 cab only F Fire alarm test button I Instrument lights switch INCREASE Shift I...

Page 7: ...eleration physics Dynamic brake simulation Realistic speed set cruise control Neutral section functionality Improved class 91 blunt end simulation Semi functional in cab voltmeter class 91 only Workin...

Page 8: ...the simulator will start recording overspeed as the train goes above 125mph even by 0 1mph Be aware then that when setting the cruise control to 125mph the train can and most likely will go slightly a...

Page 9: ...turn on the headlights The keys used to do this vary depending on which cab you re in 5 Check the door interlock light is lit 6 Turn the Driver Reminder Appliance DRA off by pressing Y How to use in t...

Page 10: ...g s Cross Route ECML London Peterborough Track covered Peterborough London King s Cross Traction GNER 91126 Year 2007 Duration 1 hour 20 minutes APC91EP 1Y05 05 25 Newcastle London King s Cross Route...

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