Sarna News: Bad 'Mechs - Icestorm

Editing Jump Jet

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=== Operational Details ===
 
=== Operational Details ===
Jump jets work in a similar, albeit more limited, fashion to the fusion rockets installed on [[aerospace fighter]]s.  Inside a magnetically shielded reaction chamber buried deep inside the 'Mech, an electron beam superheats a reaction mass and expels the expanding gases through nozzles located on the back of the 'Mech or in its legs.  Reaction mass is commonly provided in the form of air forced into the reaction chamber by a system of turbo-compressors, but most 'Mechs have a small amount of alternate reaction mass, usually in the form of hydrogen, water or mercury, in order to facilitate operation in a vacuum and to reduce the wear on the jets from superheated oxygen when in an atmosphere that contains it<ref name="TM38+">''TechManual'', pp. 38-39, "Jump Jets"</ref>.  The reaction mass provided by an atmosphere is effectively infinite, but the onboard supplementary reaction mass carried is limited by the number of thruster assemblies installed unless additional tankage is added to the 'Mech<ref name="SOp24">''Strategic Operations'', p. 24, "Conversion Of Ground Units To Fighters Table"</ref>.
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Jump jets work in a similar, albeit more limited, fashion to the fusion rockets installed on [[aerospace fighter]]s.  Inside a magnetically shielded reaction chamber buried deep inside the 'Mech, an electron beam superheats a reaction mass and expels the expanding gases through nozzles located on the back of the 'Mech or in its legs.  Reaction mass is commonly provided in the form of air forced into the reaction chamber by a system of turbo-compressors, but most 'Mechs have a small amount of alternate reaction mass, usually in the form of hydrogen, water or mercury, in order to facilitate operation in a vacuum and to reduce the wear on the jets from superheated oxygen when in an atmosphere that contains it<ref name="TM38+">''TechManual'', pp. 38-39, "Jump Jets"</ref>.  The reaction mass provided by an atmosphere is effectively infinite, but the supplementary reaction mass carried on-board is limited by the number of thruster assemblies installed unless additional tankage is added to the 'Mech<ref name="SOp24">''Strategic Operations'', p. 24, "Conversion Of Ground Units To Fighters Table"</ref>.
  
Because of the heat produced by jump jet activation and limited onboard fuel, jump jets can only maintain thrust for a few seconds. A far cry from flight, jump jets nevertheless allow a 'Mech to make short leaps sufficient enough to outmaneuver 'Mechs not similarly equipped or bypass obstacles and unfavorable terrain<ref name="TM38+"/><ref name="TMp225+">''TechManual]]'', pp. 225-226, "Jump Jets"</ref>. Care must be taken when jumping, however, as jumping causes heat buildup with even the shortest jump generating more heat than running, and damage to a 'Mech's gyro or leg actuators and joints can cause a 'Mech to fumble upon landing. Owing to the inability of liquids to be compressed, submerged jump jets cannot be used lest the extreme pressure rupture the jet's casing<ref name="TM38+"/><ref name="TWp53+">''Total Warfare'', pp. 53-54, "Movement Modes - Jumping"</ref>.
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Because of the heat produced by jump jet activation and limited on-board fuel, jump jets can only maintain thrust for a few seconds. A far cry from flight, jump jets nevertheless allow a 'Mech to make short leaps sufficient enough to outmaneuver 'Mechs not similarly equipped or bypass obstacles and unfavorable terrain<ref name="TM38+"/><ref name="TMp225+">''TechManual]]'', pp. 225-226, "Jump Jets"</ref>. Care must be taken when jumping, however, as jumping causes heat buildup with even the shortest jump generating more heat than running, and damage to a 'Mech's gyro or leg actuators and joints can cause a 'Mech to fumble upon landing. Owing to the inability of liquids to be compressed, submerged jump jets cannot be used lest the extreme pressure rupture the jet's casing<ref name="TM38+"/><ref name="TWp53+">''Total Warfare'', pp. 53-54, "Movement Modes - Jumping"</ref>.
  
 
=== Attacks by a Jumping 'Mech ===
 
=== Attacks by a Jumping 'Mech ===

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