Impulse drive: Difference between revisions

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==Technical==
* Short for "internally metered pulse drive" (Invasion Novel: ''First Strike'')
* Short for "internally metered pulse drive" (Invasion Novel: ''First Strike'')
* Main [[Federation]] sublight drive system,
* Main [[Federation]] sublight drive system
** ''Description guided by both TNG technical manual and general description in ''Final Frontier'', in order to best fit qualities on-screen inconsistent with straightforward Newtonian drive''
** ''Description guided by both TNG technical manual and general description in ''Final Frontier'', in order to best fit qualities on-screen inconsistent with straightforward Newtonian drive''
** Based on deuterium-fed laser pulse fusion reactor generating high energy electroplasma compatible with internal EPS power systems
** Based on deuterium-fed laser pulse fusion reactor generating high energy electroplasma compatible with internal EPS power systems
*** Early systems occasionally also based on tritium fusion (TNG Novel: ''A Time to Sow'')
*** First generations of impulse fusion reactors produced [[neutron]] radiation as a byproduct, requiring extensive radiation shielding (TNG Novel: ''A Time to Sow'')
** Combination of Newtonian and non-Newtonian propulsion (DS9 Novel: ''Gamma: Original Sin'')
** Combination of Newtonian and non-Newtonian propulsion (DS9 Novel: ''Gamma: Original Sin'')
*** Fusion reaction captured by artificial gravitational field, subspace field effects to hypercompress released energy, generating spatial distortions to linearly propel vessel either forward or in reverse
*** Fusion reaction captured by artificial gravitational field, subspace field effects to hypercompress released energy, generating spatial distortions to linearly propel vessel either forward or in reverse
*** Velocity aided and vectored by expulsion of reactants under effect of a subspace field driver coils, increasing reactant mass and reducing vessel mass to increase effectiveness of Newtonian propulsion
*** Velocity aided and vectored by expulsion of reactants under effect of a subspace field driver coils, increasing reactant mass and reducing vessel mass to increase effectiveness of Newtonian propulsion (''TNG Tech Manual'')
** Maximum impulse velocity limited to 0.25c by policy, to prevent severe relativistic effects from bringing vessels too significantly out of sync with rest-frame activities
** As of 2270s, impulse operation also incorporates low-level warp field to reduce vessel inertial mass (TOS Novel: ''Ex Machina''; ''TNG Tech Manual'')
*** Up to 0.75c in emergency situations
*** Soon after implementation, led to impulse velocities sometimes being referred to as fractional warp velocities, though this practice was soon dropped (''Star Trek: The Motion Picture''; TOS Novel: ''Ex Machina'')
** Maximum impulse velocity limited to 0.25c by policy, to prevent severe relativistic effects from bringing vessels too significantly out of sync with rest-frame activities (''TNG Tech Manual'')
*** Up to 0.75c in emergency situations (''TNG Tech Manual'')
* Impulse operation produces ion exhaust (NF Novel: ''House of Cards'')


==History==
==History==


* 2018: Invented by [[Earth]], quickly displacing other engine technologies
* 2018: Invented by [[Earth]], quickly displacing other engine technologies
* Late-21st century: First redesigns to incorporate subspace features, increasing potential delta-V
==Components==
* Impulse rod (NF Novel: ''Into the Void'')
** ''Unclear what this might be''


[[Category:Propulsion]]
[[Category:Propulsion]]

Latest revision as of 13:46, 8 June 2019

Technical

  • Short for "internally metered pulse drive" (Invasion Novel: First Strike)
  • Main Federation sublight drive system
    • Description guided by both TNG technical manual and general description in Final Frontier, in order to best fit qualities on-screen inconsistent with straightforward Newtonian drive
    • Based on deuterium-fed laser pulse fusion reactor generating high energy electroplasma compatible with internal EPS power systems
      • Early systems occasionally also based on tritium fusion (TNG Novel: A Time to Sow)
      • First generations of impulse fusion reactors produced neutron radiation as a byproduct, requiring extensive radiation shielding (TNG Novel: A Time to Sow)
    • Combination of Newtonian and non-Newtonian propulsion (DS9 Novel: Gamma: Original Sin)
      • Fusion reaction captured by artificial gravitational field, subspace field effects to hypercompress released energy, generating spatial distortions to linearly propel vessel either forward or in reverse
      • Velocity aided and vectored by expulsion of reactants under effect of a subspace field driver coils, increasing reactant mass and reducing vessel mass to increase effectiveness of Newtonian propulsion (TNG Tech Manual)
    • As of 2270s, impulse operation also incorporates low-level warp field to reduce vessel inertial mass (TOS Novel: Ex Machina; TNG Tech Manual)
      • Soon after implementation, led to impulse velocities sometimes being referred to as fractional warp velocities, though this practice was soon dropped (Star Trek: The Motion Picture; TOS Novel: Ex Machina)
    • Maximum impulse velocity limited to 0.25c by policy, to prevent severe relativistic effects from bringing vessels too significantly out of sync with rest-frame activities (TNG Tech Manual)
      • Up to 0.75c in emergency situations (TNG Tech Manual)
  • Impulse operation produces ion exhaust (NF Novel: House of Cards)

History

  • 2018: Invented by Earth, quickly displacing other engine technologies
  • Late-21st century: First redesigns to incorporate subspace features, increasing potential delta-V

Components

  • Impulse rod (NF Novel: Into the Void)
    • Unclear what this might be