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Airspeed

A multiplier on a country or a difficulty setting that changes no speed in the game.

This setting has no runtime effect

The engine accepts and loads it, but no gameplay code uses the stored value.

Country air-speed multiplier

Specification — Country air-speed multiplier
Applies to
HouseType
File
rules.ini
Section
[<ObjectType ID>]
Value
floating point
When omitted
1.0
Used by the game
No — loaded but not used

A house of this country combines this multiplier with the difficulty section’s Airspeed= and GameSpeedBias when it is given its difficulty slot. A campaign game leaves the country’s value out, as it does for Groundspeed=.

Nothing in the game reads the combined figure, so no value here changes how fast anything moves. An aircraft flies at Speed= in its aircraft type’s section.

Difficulty air-speed multiplier

Specification — Difficulty air-speed multiplier
Applies to
difficulty settings
File
rules.ini
Section
[<Difficulty ID>]
Value
floating point
When omitted
1The difficulty block is re-read from fixed defaults whenever its section is present, so a later file that contains the section without this key restores 1 rather than keeping the earlier value.
Used by the game
No — loaded but not used

[Easy], [Normal] and [Difficult] each set their own multiplier. A house combines the one for its difficulty slot with GameSpeedBias and, outside a campaign game, with its country’s Airspeed=.

Nothing in the game reads the combined figure, so no value here changes how fast anything moves. An aircraft flies at its type’s Speed=. The difficulty multiplier that does change movement speed is Groundspeed=, and it does not scale aircraft either.