| Ticks a vented hold stays open while its cargo cools | Fire and damage control | E to D | NSTM chapter 555, volume 1: Surface Ship Firefighting (an EXTRACT of 6 pages), Post fire actions: post-fire ordnance cooling, minimum 15 minutes (555-8.13.9) |
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| Chance a lithium loop leaks, per point of containment lost, while the plant runs | Fire and damage control | E to D | Liquid-metal coolant leaks: what starts them and what puts them out, NRC report 3.4 item 6: BN-600, 30 sodium leaks in 15 years |
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| Chance a lithium loop leaks while it runs past its heat points | Fire and damage control | E to D | Liquid-metal coolant leaks: what starts them and what puts them out, NRC report 3.4 item 6: BN-600, 30 sodium leaks in 15 years |
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| Density of rolled steel plate | Armor and the six faces | Added at B | Atomic Rockets, spacegunconvent2, Radiation shielding materials, iron at 7.84 g/cm^3 to simulate steel |
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| Density of sintered ceramic plate (silicon carbide) | Armor and the six faces | Added at B | Wikipedia, Silicon carbide: density of the common polytypes, Properties of major SiC polytypes table |
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| Density of laminate plate (silicon carbide with tungsten) | Armor and the six faces | Added at C | Wikipedia, Silicon carbide: density of the common polytypes, Properties of major SiC polytypes table; tungsten from the Atomic Rockets shielding page |
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| Muzzle speed of an autocannon | Armor and the six faces | E to B | NavWeaps naval gun pages: rates of fire, round mass, slew rates, drums, Muzzle velocity in the Phalanx, Goalkeeper, Bofors and Millennium tables; Atomic Rockets chemical gun paragraph |
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| Ship volume per person aboard | Armor and the six faces | E to D | Wikipedia, warship displacement and crew: volume per person, infobox displacement and complement of three classes |
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| Area of a person a round can strike | Armor and the six faces | E to C | NASA-STD-3001 Volume 2: crew health, the habitable atmosphere and pressure change, Appendix F, F.4, Table 44, body surface area |
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| Stowage factor: cubic meters of hold per tonne of cargo | Armor and the six faces | E to B | Stowage factor: hold volume per tonne of cargo, table of typical stowage factors |
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| Exhaust speed of the top rung (TH-6) | Fuel and the torch drive | E to B | Atomic Rockets, enginelist3, Epstein Drive |
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| Acceleration a crew bears with no strain | Fuel and the torch drive | E to B | Atomic Rockets, humanfactor, Table 1, gross effects of acceleration forces |
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| Reefer draw for each tonne of cold cargo | Running dark | E to C | Reefer container power draw, actual power consumption of reefer containers |
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| Relative speed a boarding needs | The Newtonian fight | E to D | Apollo-Salyut/Soyuz docking: the speed and alignment a docking mechanism must take, Initial-impact criteria: axial closing velocity 0.05 to 0.3 m/s |
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| Mass of one round, by mount size | Kinetic guns and point defense | E to B | NavWeaps naval gun pages: rates of fire, round mass, slew rates, drums, Projectile weights in the Phalanx, Bofors, 76 mm and Mark 71 tables |
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| Speed a turret traverses, by mount size | Kinetic guns and point defense | E to D | NavWeaps naval gun pages: rates of fire, round mass, slew rates, drums, Slew rates in the tables for Phalanx, Bofors, Millennium, 76 mm, Mark 45 and Mark 71 |
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| Point defense rounds per second, by caliber | Kinetic guns and point defense | E to B | NavWeaps naval gun pages: rates of fire, round mass, slew rates, drums, Rate of fire in the Phalanx, Goalkeeper, Millennium and Bofors tables |
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| Seconds of fire in a point defense mount's own drum | Kinetic guns and point defense | E to C | NavWeaps naval gun pages: rates of fire, round mass, slew rates, drums, Drum capacity in the Phalanx and Goalkeeper tables |
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| Seconds of fire in one point defense engagement | Kinetic guns and point defense | E to C | NavWeaps naval gun pages: rates of fire, round mass, slew rates, drums, Burst length in the Phalanx text and the Goalkeeper text |
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| Dry days of water before harm starts | Life support, food and water | E to B | Survival without water and food: the rule of threes, Wikipedia, Rule of threes (survival), the rule and the Water section |
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| Dry days of food before harm starts | Life support, food and water | E to D | Survival without water and food: the rule of threes, Scientific American, survival without food; Wikipedia, Rule of threes |
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| Hygiea: size in km and mass in kg | Mining the belt | E to B | Wikipedia, 10 Hygiea: size and mass, infobox: dimensions and mass; Atomic Rockets colony site page for the mass |
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| Hygiea distance from the sun | Mining the belt | E to A | JPL Small-Body Database: semi-major axes of the named asteroids, orbit elements of 10 Hygiea |
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| Largest relative speed a boarding match allows | Hailing, boarding and prize law | E to D | Apollo-Salyut/Soyuz docking: the speed and alignment a docking mechanism must take, Initial-impact criteria: axial closing velocity 0.05 to 0.3 m/s |
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| Bearing sectors in a seaman's words: ahead, bow, beam, quarter and astern | The bridge crew and standing orders | E to B | IHO Hydrographic Dictionary (S-32): relative bearing terms, entries on the beam, on the bow, on the quarter |
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| Words a second a crew says on the net, by skill | The bridge crew and standing orders | E to D | Wikipedia, Speech tempo and Words per minute, speaking rate of radio news |
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| Rounds a second an autocannon streams (the base rate) | Hostile fleets, gun stores and spread | E to B | NavWeaps naval gun pages: rates of fire, round mass, slew rates, drums, Rate of fire in the 40 mm / 70 Bofors table |
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| Rounds a second a streamed autocannon fires, by size | Hostile fleets, gun stores and spread | E to B | NavWeaps naval gun pages: rates of fire, round mass, slew rates, drums, Rates of fire in the Bofors 40 mm, 76 mm, Mark 45 and Mark 71 tables |
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| Seconds between rounds for the two heaviest autocannon sizes | Hostile fleets, gun stores and spread | E to D | NavWeaps naval gun pages: rates of fire, round mass, slew rates, drums, Rates of fire in the Mark 45, Mark 71 and AGS tables |
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| Which belt each named mid-size body belongs to | Terrain, cover and harbors | E to C | JPL Small-Body Database: semi-major axes of the named asteroids, semi-major axes of the eight mid-size bodies |
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| Which belt each of the four giants belongs to | Terrain, cover and harbors | E to C | JPL Small-Body Database: semi-major axes of the named asteroids, semi-major axes of Vesta, Pallas, Ceres and Hygiea |
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