Nomenclatures (Model Numbers) are assembled like this:
[Manufacturer]-[Type][Class]-[Design][Version]
Example: Ke-M3-1b (Kylie) would be KFY's the 2nd version of the 1st design of their 3rd Class of mecha.
A - Carrier (Fighters and bombers. Power armor carriers should use C.)
B - Battleship, flagship, or dreadnought
C - Carrier or Cruiser
D - Escort (Destroyers, light cruisers)
E - Very small “boat” starships such as the Minion
F - Frigate (No Longer used)
G - Personal Gear (eg helmets, canteens)
H - Star Fortress or Mobile Space Station (Immobile ones are P)
J - Android or robot
K - Ground vehicle
L - Logistics Ship (Cargo carrier)
M - Mecha or Power Armor
N - Nekovalkryja or NH series
O - Drone, pilotless small craft
P - Planetary or orbital structure
R - Automated Supply/Support Ship (Use L)
S - Assault Ship, Monitor, or Gunship
T - Shuttle or Aeroshuttle
V - Starfighter or bomber
W - Hand Weapon
X - Limited prototype model
Y - Civilian Craft
Z - Starship Torpedo
Using the main cannon on the Sakura as an example, it would be a Ke-S3-W2800.
Ke - Manufacturer
S3 - Ship Class system is originally for (Sakura is the Ke-S3 series)
W - Weapons System
A Armor Package (YE 31 and onward)
B Breaching Pod
E Electronics
F Frame
G Generator and Power Systems
H Hull
M Miscellaneous
P Propulsion
R Inertial / Force Redirection
S Shield System
V Environmental
W Weapons System
X Escape Pod
28 - Year of the Empire
00 - 1st system of this type created in the above year (01 would be the second, etc)