Slitherine

V5.2.2 64-bit windows 7

I upgraded transportation(Horse Transport) for a 37 PstK/36, but it can only move 2 tiles in one turn, same as before upgrade.

This may be due to winter restricting movement a bit, especially for wheeled transport.
Note that most light AA has very generous movement allowance even without transport.
It is usually not worth it to pay the cost in resources and command points to add transport to these units.
My personal opinion of course.

Erik2 wrote:This may be due to winter restricting movement a bit, especially for wheeled transport.
Note that most light AA has very generous movement allowance even without transport.
It is usually not worth it to pay the cost in resources and command points to add transport to these units.
My personal opinion of course.

I tested in another normal scenario. The horse transport has 6 move, but the unit upgrade to this 'horse transport' can only move 3 tiles.

Without a transport the 37 PstK/36 uses "tow" movement, which always costs 1 MP / hex. With the horse it uses "foot" movement which for instance for an open hex costs 2 MP / hex except in winter when it costs 3 MP / hex. Therefore the horse transport is probably not that useful like Erik noticed. Note that the number indicates movement points (MP), not hexes.