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lelo4851
Junior Train Controller
Joined: Jul 27, 2005
Last Visited: Dec 18, 2008
Location: foot of the blue mountains ,
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| lelo4851 |
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Posted: Sun Sep 07, 2008 12:31 pm
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hey everybody hope all is well
does anybody know how to change the pressure of which the saftey vales 'blow off' as this is very unrelistic on some locos
thanks for any info ,lelo
if i see a graffitie artist i will kill them with my bare hands ,smegs
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steam4me
Deputy Commissioner
Joined: Mar 07, 2003
Last Visited: Dec 28, 2008
Location: Port Melbourne, Victoria
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| steam4me |
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Posted: Mon Sep 08, 2008 7:18 am
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On which locos are the safeties unrealistic?
No matter, the answer is not quite so simple......
The maximum boiler pressure is in the Engine( part of the ENG file: look for a line like this:
MaxBoilerPressure ( 175psi )
The starting pressure is in the EngineVariables line - the fourth parameter:
| Code: |
comment (* fire temp, fire mass, water mass, boiler pressure, water level, tender_water_mass, smoke_quantity, tender_coal_mass, fire_condition, coal quality *)
EngineVariables( 875 1750 3200 176 0.80 45000 1 2 1 1 )
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(Note: the arrangements of the Variables is correct as stated in the Comments section: default locos have the 2nd last and third last parameters interchanged)
If you set the starting boiler pressure to higher than the MaxBoilerPressure (176>175 in this example), you will have the safety valves lifting on starting the sim. Once the valves shut off, you will never see them again: the safety valves won't lift again because you can't exceed MaxBoilerPressure even with good firing.
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GhostofGresley
Junior Train Controller
Joined: Jul 02, 2008
Last Visited: Dec 4, 2008
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Posted: Mon Sep 08, 2008 5:33 pm
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| steam4me wrote: | | On which locos are the safeties unrealistic? |
On the TA Belpaire 36s the maximum pressure should be 200psi, not 180psi, and on the TA 3801 it should be 215psi, not 245psi.
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macey
Assistant Commissioner
Joined: Mar 18, 2005
Last Visited: Jan 7, 2009
Location: Looking for where you live....
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| macey |
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Posted: Mon Sep 08, 2008 5:58 pm
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| Quote: | | On the TA Belpaire 36s the maximum pressure should be 200psi, not 180psi, and on the TA 3801 it should be 215psi, not 245psi. |
I dont think the TA 3801 is modeled after the Preserved loco
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BrianB
Chief Train Controller
Joined: Dec 28, 2004
Last Visited: Jan 7, 2009
Location: Brisbane
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Posted: Mon Sep 08, 2008 9:13 pm
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| macey wrote: | | Quote: | | On the TA Belpaire 36s the maximum pressure should be 200psi, not 180psi, and on the TA 3801 it should be 215psi, not 245psi. |
I dont think the TA 3801 is modeled after the Preserved loco |
I think it is - it is the only T-A 38 with an automatic front coupler (which came with preservation), all the other T-A 38's have the standard hook coupler.
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GhostofGresley
Junior Train Controller
Joined: Jul 02, 2008
Last Visited: Dec 4, 2008
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Posted: Mon Sep 08, 2008 10:13 pm
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| BrianB wrote: | | macey wrote: | | Quote: | | On the TA Belpaire 36s the maximum pressure should be 200psi, not 180psi, and on the TA 3801 it should be 215psi, not 245psi. |
I dont think the TA 3801 is modeled after the Preserved loco |
I think it is - it is the only T-A 38 with an automatic front coupler (which came with preservation), all the other T-A 38's have the standard hook coupler. |
Indeed it also has the flush-sided, fully welded tender tank, and also the cylinder lining.
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