Motorized Land UnitsMotorizationThe 1900 motorization tech represents the understanding that motor vehicles could be used for military purposes. It allows testing of individual vehicle types in different roles, but has no noticeable effect on the abilities of a unit.
Subsequent tech levels do provide tangible benefits to the units, and may be purchased for those units:
| Generation | $ Cost | BP Cost | Build Time | Effect |
| 1910 | $1.00 | 0.50 | 6 months | Artillery, HQ elements motorized; improved tactical mobility |
| 1920 | $2.00 | 1.00 | 6 months | All supporting elements motorized; improved strategic mobility |
The cost of motorization is added to that of the affected army unit for determination of maintenance costs.
Upgrading from 1910 to 1920 motorization costs $1 and 1.00 BP, as the earlier generation of vechiles are junked and replaced by a greater number of more capable vehicles.
Discarded 1910-vintage vehicles can be recycled for scrap.
It is recommended that players consider a nomenclature scheme to differentiate between motorized and non-motorized army units.
Armored Cars and Light ArmorA brigade/regiment (defined here as the unit which sub-divides into battalions/squadrons, depending on one's nomenclature) of armored cars and light armor costs as follows:
| Type | $ Cost | BP Cost | Build Time |
| 1905 | $2.00 | 1.00 | 6 months |
| 1910 | $4.00 | 1.00 | 6 months |
| 1915 | $6.00 | 1.00 | 6 months |
| 1920 | $8.00 | 1.00 | 6 months |
Half-yearly maintenance is 25% of cost when mobilized, 12.5% when active and 2.5% in reserve.
Upgrading an armored car/light tank unit to the next technological level costs $2 and 1 BP: this is the cost of wholesale replacement of the vehicles themselves.
Discarded armored cars/light tanks may be recycled for scrap.
Heavy ArmorA brigade/regiment (defined here as the unit which sub-divides into battalions/squadrons, depending on one's nomenclature) of tanks costs as follows:
| Type | $ Cost | BP Cost | Build Time |
| 1910 | $4.00 | 4.00 | 6 months |
| 1915 | $8.00 | 4.00 | 6 months |
| 1925 | $12.00 | 4.00 | 6 months |
| 1935 | $16.00 | 4.00 | 6 months |
Half-yearly maintenance is 25% of cost when mobilized, 12.5% when active and 2.5% in reserve.
Upgrading a tank unit to the next technological level costs $4 and 4 BP: this is the cost of wholesale replacement of the vehicles themselves.
Discarded tanks may be recycled for scrap.
Armored TrainsAn armored train is classified by the largest gun carried within it; there is usually just one such weapon. The train will also include a security detail and a few light defensive guns.
The cost of trains is:
| Main Gun | $ Cost | BP Cost | Build Time |
| 5 - 6" | $0.20 | 0.10 | 6 months |
| 7.5 - 8.27" | $0.40 | 0.20 | 6 months |
| 9.2-10" | $0.60 | 0.30 | 9 months |
| 10.75" - 12" | $1.30 | 0.65 | 12 months |
| 13" - 14" | $2.10 | 1.05 | 12 months |
Half-yearly maintenance is 25% of cost when mobilized, 12.5% when active and 2.5% in reserve.
If surplus naval artillery is used for the train's main battery, the dollar/BP cost of the gun (simulated as a deck mount, with no armor) is subtracted from the cost of the train as listed above. Construction time is reduced by three months.
Armored Trains are not significantly impacted by technological progress, so do not require "upgrading".
An armored train can be upgraded to a larger size, by replacing the main gun car(s) and possibly adding additional locomotives and support cars. The full cost of the larger train size - less one half the $/BP cost of the original sized train - is paid. The original gun and carriage are discarded in the process, but may be recovered for scrap.