[FRDF] How to decide how many wagons you can have in a train

[uzurpator]

Hyronymus.

That formula allows to calculate tractive effort. And the 'u' (mi) changes from 0,15 for some steam locos to 0,4 for modern equipment.

30% grade is way too much for rv. 20% s really steep.

[Hellfire]

I split off the discussion on slopes to a new topic. Please keep both topics on-topic.

[Steve]

Meeting Decisions:

* Nothing were really decided, but there where quite some discussion about it.

* Main voices:
- Have a clear maximum, to make the game clear to the players.
- Don't have a maximum, it will trade off to much.
- Use RRT style charts, that displays: max speed at various loads and slopes.

Status: Inconclusive. Open to discussion.

[jfs]

- Use RRT style charts, that displays: max speed at various loads and slopes.

does not exclude any of the two other points,

- Have a clear maximum, to make the game clear to the players.
- Don't have a maximum, it will trade off to much.

unless I'm very badly mistaken.

[Steve]

I'm not sure what you mean.

Those points are just random things people said. Not much has been decided.

[ChrisCF]

Clearly we have the means to calculate whether a train can actually start unaided (i.e. without the benefit of a push off, or a downhill start). Ultimately, a given amount of energy is required to start a vehicle or train of given mass, and the propulsion available either can or cannot bring it to the point of motion - there is no in-between. If you manage to beat the weight but not overcome friction, you haven't reached the point of motion.

Locked until the DD discussion arrives at this issue.