terom opened the ticket and wrote:

Running a road vehicle with a 0t mass will crash the game with an Arithmetic exception if using the Realistic Acceleration model.

Steps to reproduce:

1. Load George's Long Vehicles v4 GRF (4D656F17):
   http://grfcrawler.tt-forums.net/details.php?do=details&id=83
2. Start a new game in the year 1930
3. Enable the Realistic Acceleration model
4. Build a new Ford "Model T" road vehicle
5. Start it

A savegame from r19596 (git) with steps 1-4 already done is attached, along with a screenshot from before the crash, the crash.log, and gdb backtrace showing the `mass` local variable being zero.

Original report: http://www.tt-forums.net/viewtopic.php?p=869455# p869455

Attachments

• rv-zeromass-pre.sav (96.69 KiB)
• rv-zeromass-pre.png (48.16 KiB)
• rv-zeromass-gdb.txt (1.43 KiB)
• crash.log (2.64 KiB)

Reported version: trunk
Operating system: All

This issue was imported from FlySpray: https://bugs.openttd.org/task/3751