Hull classes, sizes and slots

A hull class is the size band of a hull, light, medium or heavy craft, and it sets the reactor, the heat capacity, the reactor armor slot and the Safeguards rules for the hull.

10 numbers, 0 with an outside source

A0 numbers at grade A
B0 numbers at grade B
C0 numbers at grade C
D0 numbers at grade D
E10 numbers at grade E

Functionality

Values

10 numbers: 10 E

Each value is read from the game code. Sort by any column heading, or filter by grade or by a word.

Numbers the game runs for hull classes, sizes and slots
Quantity	Value	Grade	Source	Why this value
The size class of each hull model	Lyrid LIGHT CRAFT, Wayland LIGHT CRAFT, Trochilus LIGHT CRAFT, Adriatic LIGHT CRAFT, Apis LIGHT CRAFT, Ilmarinen LIGHT CRAFT, Gyges LIGHT CRAFT, Perseid LIGHT CRAFT, Tyto MEDIUM CRAFT, Fringilla MEDIUM CRAFT, Aegean MEDIUM CRAFT, Corinth MEDIUM CRAFT, Niagara MEDIUM CRAFT, Locusta MEDIUM CRAFT, Leonid MEDIUM CRAFT, San Andreas MEDIUM CRAFT, Malus MEDIUM CRAFT, Montu MEDIUM CRAFT, Tembo MEDIUM CRAFT, Gibraltar MEDIUM CRAFT, Anatolian MEDIUM CRAFT, Szabo MEDIUM CRAFT, Kiel MEDIUM CRAFT, Malacca MEDIUM CRAFT, Fraxinus MEDIUM CRAFT, Tyr MEDIUM CRAFT, Bosporus HEAVY CRAFT, Panama HEAVY CRAFT, Dardanelles HEAVY CRAFT, Suez HEAVY CRAFT, Iguazu HEAVY CRAFT, Brennan HEAVY CRAFT, Quercus HEAVY CRAFT, Victoria HEAVY CRAFT, Nergal HEAVY CRAFT, Ginkgo HEAVY CRAFT, Kaieteur HEAVY CRAFT, Ivanova HEAVY CRAFT, Angel HEAVY CRAFT, Kerrigan HEAVY CRAFT, Sequoia HEAVY CRAFT, Ares HEAVY CRAFT, Mangala HEAVY CRAFT size class by model	EAuthored	No source recorded	Authored per model, because a save carries the model, while price and role read back as None. The classes are the game's own. The shelf pages hold no size bands for craft.
Most hull points of a light craft, for a hull nobody authored	120 hull points	EAuthored	Design notes: hullclass, The rule	The old threshold the table was generated from, kept as the fallback for a hand-built stub or a new model.
Most hull points of a medium craft, for a hull nobody authored	250 hull points	EAuthored	Design notes: hullclass, The rule	The old threshold the table was generated from, kept as the fallback for a hand-built stub or a new model.
Sleek hull slopes by face	FORE 30, PORT 10, STARBOARD 10, UPPER 10, LOWER 10, AFT 10 degrees	EAuthored	Atomic Rockets, spacewardefense, Section 10: General Armor Tactics, sloped armor	Chosen: a sleek hull is wedged with the steepest slope at the bow. The mirror advises long, thin nosecones for warships and gives no angle for each face. The sources are silent on this figure.
Square hull slopes by face	FORE 0, PORT 0, STARBOARD 0, UPPER 0, LOWER 0, AFT 0 degrees	EAuthored	Atomic Rockets, spacewardefense, Section 10: General Armor Tactics, sloped armor	Zero slope on every face: a flat-faced hull. A sloped plate reads thicker by the secant of its angle (mirror, General Armor Tactics), and a slope of zero adds nothing.
Reactor armor slot size by size class	LIGHT CRAFT light, MEDIUM CRAFT standard, HEAVY CRAFT heavy slot size by class	EAuthored	No source recorded	Every hull carries one reactor armor slot, sized by its class. The plate ratings (35, 80 and 115) are authored.
Hull roles that are built with reactor armor fitted	CARRIER, COMBAT, CRUISER, DESTROYER, DRONE CARRIER, FLEET CARRIER, TROOP TRANSPORT hull roles	EAuthored	No source recorded	A navy or pirate warship comes with the plate. A yard hull comes bare, as its guns do.
Service years behind a hull before the captain	200 years	EAuthored	Design notes: setting-canon, Timeline, 2076 to 2276	No captain buys a new hull, because a shipbuilding plant's output goes to whoever needs tonnage that does not yet exist. The span is the two centuries of shipbuilding iteration that canon gives a hull.
The year the game begins	2,500 year	EAuthored	Design notes: setting-canon, Timeline, 2276 to 2500	Canon: the game begins on 1 January 2500, after 224 years in which the plants built the same drawing.
Cargo the locker holds	5 tonnes	EAuthored	No source recorded	The locker is a room ashore with a bed, a shelf and a kitchenette, and not a hull. Chosen so that a captain who sells up keeps an object that holds some cargo and cannot travel.

Real-world basis

5 points

A hull's points say how much shooting it survives, and its class says what it is.
The class sets reactor output, capacitor size, heat capacity, thermal signature, to-hit and the Safeguards license.
Class is authored per model, because a save stores the model.
Every hull carries one reactor armor slot, sized by its class.
A sloped plate reads thicker by the secant of its angle, so a hull sloped on a face stops more there.

Game and reality differences

2 points

The thresholds of 120 and 250 hull points are the fallback only, for a hull nobody authored.
The locker is a Ship object with no fuel capacity, so every body reads out of range.

Source absences

3 points

No source on the shelf or Atomic Rockets page provides values for the following:
1. Size bands for craft. The three classes and every threshold are authored.
2. Most hull points of a light craft. 120 is authored.
3. Most hull points of a medium craft. 250 is authored.

Sources

2 documents

Design notes: hullclass, Why one number was carrying two facts: The game's own record: class used to be read off hull points with two thresholds, and the split made class independent of points. (all uses)
Design notes: setting-canon, Timeline: The shipbuilding plants have built the same drawing since 2276, and the game begins on 1 January 2500. (all uses)