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Line 17: Fusion engines usually will only shut down if damaged or if heat is uncontrolled. Unlike popular belief, there is absolutely no risk of a fusion engine accidentally becoming a nuclear weapon. <ref>''TechManual'', pp. 36-37, "Fusion Engine Explosions: The Great Myth"</ref> There have been a number of cases of fusion engines being "over revved" and exploding with devastating force, but this is more akin to a boiler explosion than a true nuclear explosion. More often a destroyed engine will be punctured by weapons fire. Because the plasma is held in a vacuum chamber (to isolate the superheated plasma from the cold walls of the reactor; contact with the walls would super-chill the plasma below fusion temperatures), a punctured reactor can suck in air where the air is superheated. Normal thermal expansion of the air causes the air to burst out in a brilliant lightshow often mistaken for a "nuclear explosion". This thermal expansion damages anything within 90 meters of the destroyed 'Mech. Fusion engines usually will only shut down if damaged or if heat is uncontrolled. Unlike popular belief, there is absolutely no risk of a fusion engine accidentally becoming a nuclear weapon. <ref>''TechManual'', pp. 36-37, "Fusion Engine Explosions: The Great Myth"</ref> There have been a number of cases of fusion engines being "over revved" and exploding with devastating force, but this is more akin to a boiler explosion than a true nuclear explosion. More often a destroyed engine will be punctured by weapons fire. Because the plasma is held in a vacuum chamber (to isolate the superheated plasma from the cold walls of the reactor; contact with the walls would super-chill the plasma below fusion temperatures), a punctured reactor can suck in air where the air is superheated. Normal thermal expansion of the air causes the air to burst out in a brilliant lightshow often mistaken for a "nuclear explosion". This thermal expansion damages anything within 90 meters of the destroyed 'Mech. − Such dramatic failures are rare, though. It is difficult to sustain the fusion reaction and very easy to shut down. Safety systems or damage to containment coils will almost always shut down the engine before such an explosion occurs. The massive shielding of the engine (in the case of standard fusion engines, this is a tungsten carbide shell that accounts for over 2/3 of the weight of the engine) usually buys the safety systems the milliseconds needed to shut down the engine when severe damage is inflicted. + Such dramatic failures are rare, though. It is difficult to sustain the fusion reaction and very easy to shut down. Safety systems or damage to containment coils will almost always shut down the engine before such an explosion occurs. The massive shielding of the engine (in the case of standard fusion engines, this is a tungsten carbide shell that accounts for over 2/3 of the weight of the engine) usually buys the safety systems the milliseconds needed to shutdown the engine when severe damage is inflicted. ==History== ==History==
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Fusion engines usually will only shut down if damaged or if heat is uncontrolled. Unlike popular belief, there is absolutely no risk of a fusion engine accidentally becoming a nuclear weapon. <ref>''TechManual'', pp. 36-37, "Fusion Engine Explosions: The Great Myth"</ref> There have been a number of cases of fusion engines being "over revved" and exploding with devastating force, but this is more akin to a boiler explosion than a true nuclear explosion. More often a destroyed engine will be punctured by weapons fire. Because the plasma is held in a vacuum chamber (to isolate the superheated plasma from the cold walls of the reactor; contact with the walls would super-chill the plasma below fusion temperatures), a punctured reactor can suck in air where the air is superheated. Normal thermal expansion of the air causes the air to burst out in a brilliant lightshow often mistaken for a "nuclear explosion". This thermal expansion damages anything within 90 meters of the destroyed 'Mech. | Fusion engines usually will only shut down if damaged or if heat is uncontrolled. Unlike popular belief, there is absolutely no risk of a fusion engine accidentally becoming a nuclear weapon. <ref>''TechManual'', pp. 36-37, "Fusion Engine Explosions: The Great Myth"</ref> There have been a number of cases of fusion engines being "over revved" and exploding with devastating force, but this is more akin to a boiler explosion than a true nuclear explosion. More often a destroyed engine will be punctured by weapons fire. Because the plasma is held in a vacuum chamber (to isolate the superheated plasma from the cold walls of the reactor; contact with the walls would super-chill the plasma below fusion temperatures), a punctured reactor can suck in air where the air is superheated. Normal thermal expansion of the air causes the air to burst out in a brilliant lightshow often mistaken for a "nuclear explosion". This thermal expansion damages anything within 90 meters of the destroyed 'Mech. | ||
| − | Such dramatic failures are rare, though. It is difficult to sustain the fusion reaction and very easy to shut down. Safety systems or damage to containment coils will almost always shut down the engine before such an explosion occurs. The massive shielding of the engine (in the case of standard fusion engines, this is a tungsten carbide shell that accounts for over 2/3 of the weight of the engine) usually buys the safety systems the milliseconds needed to | + | Such dramatic failures are rare, though. It is difficult to sustain the fusion reaction and very easy to shut down. Safety systems or damage to containment coils will almost always shut down the engine before such an explosion occurs. The massive shielding of the engine (in the case of standard fusion engines, this is a tungsten carbide shell that accounts for over 2/3 of the weight of the engine) usually buys the safety systems the milliseconds needed to shutdown the engine when severe damage is inflicted. |
==History== | ==History== | ||