This is the Amtrak EMD AEM-7AC & DC Physics and Sound Upgrade pack, TS2020 edition.

In order to utilize this freeware physics & sound upgrade, you must have purchased the Northeast Corridor Add-On pack available at Steam: http://store.steampowered.com/app/65232/

This is a freeware pack; in no way is it to be used for commercial purposes. You are free, however to further modify the physics & sound enhancements found in this pack for personal use if you so choose.

The purpose of this pack is to correct some physics errors in the original AEM-7, correct the coupler spacing issue with the Amfleet cars in version 48.9a of TS2015, and add new horn and bell sounds.
THIS UPDATE adds AEM-7AC physics and sounds (and number restrictions).

NOTE: The interior E-bell sound is VERY soft, so if you don't hear it unless you're trying or the volume is up, that's normal.

Physics Parameter Change Log (DC Unit):
1. Adjusted tractive effort and braking effort curves based on real world figures available online: http://www2.hcmuaf.edu.vn/data/phamducdung/thamkhao/Mark's%20Standard-Handbook/Transportation.pdf
2. Adjusted maximum amperage ratings; 2250 for traction and 970 for braking. Traction amps based here: http://i324.photobucket.com/albums/k329/mestevet/01671s11Kvsm.jpg

For more specifics on the specific values that were changed, proceed here: http://railworksamerica.com/forum/viewtopic.php?f=31&t=10793

TS2016 UPDATE: JohnS brake fix has been applied. Brake pipe pressure has been raised from 90 PSI to 110 PSI.

2/3/16 UPDATE: Decreased brake application rate to a more realistic level (ALP-46 level).

TS2017 UPDATE: Patched blend brake deletion bug; bundled NEC track stability mod into AEM-7 mod.

TS2020 UPDATE: Added dynamic amfleet brake squeal sound, door sounds, updated HVAC and flange squeal. Updated horn and bell, cab signal alert alarm. Segregate AEM-7AC & AEM-7DC, removing need to manually convert between the two units.

Physics Parameter Change Log (AC Unit):
1. Adjusted tractive effort curve based on real world figures available online: http://www.sonic.net/~mly/Caltrain-Electrification/2000-08-Rolling-Stock-Draft/a7.pdf
2. Adjusted maximum amperage ratings; 517 for traction and 340 for braking. 517 amps = 51,700 lbs TE; -340 amps = 34,000 lbs dynamic brake effort

Technical specifications:

1. EMD AEM-7DC (7000 THP)
	a. Starting tractive effort of 53,954 lbs (240 kN)
	b. Continuous tractive effort of 45,000 lbs (200 kN) @ 64 mph
	c. Dynamic Brake effort of 15,600 lbs (70 kN) @ 36 mph
	d. Wheel horsepower of 7,600 hp (5,672 kW) @ 65 mph; fade to 5,000 hp (3,731 kW) @ 125 mph
	e. Maximum speed of 125 mph
	i. Weight = 204,893 lbs (91.47 imperial tons)
	k. Max traction amps = 2250
	l. Max brake amps = 970

2. EMD / Alstom AEM-7AC (7000 THP)
	a. Starting tractive effort of 51,700 lbs (230 kN) @ 0 mph - 43 mph
	b. Continuous tractive effort of 38,240 lbs (170.1 kN) @ 65 mph
	c. Dynamic Brake effort of 34,000 lbs (177.93 kN) @ 64.5 mph - 18 mph; fade to 0 lbs @ 13.5 mph
	d. Wheel horsepower of 6,834 hp (5,100 kW) @ 65 mph - 125 mph
	e. Maximum speed of 125 mph
	i. Weight = 204,893 lbs (91.47 imperial tons)
	k. Max traction amps = 517
	l. Max brake amps = ~340 (@ 90% auto brake handle)

IMPORTANT; Install Instructions

1. Open the Northeast Corridor asset pack until the directory reads "C:\Program Files (x86)\Steam\SteamApps\common\RailWorks\Assets\RSC\NorthEastCorridor"
2. Then open the "Railworks_AEM-7AC & DC_Physics_&_Sound_Mod_Update.rar" file.
3. Drag all file folders from the .rar file and into the directory you opened in step one.
4. Overwrite if asked.
5. The installation should be complete. Run TS2020 to check.


Thank you for downloading and installing.
Enjoy =)