Difference between revisions of "Cheat sheet"

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(* major change, made it shorter and more cheat-sheet-like. - examples. + various stuff.)
m (Mathematics: +spacing around table; +references to other articles;)
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=== Delta-v (Δv) ===
 
=== Delta-v (Δv) ===
 
==== Basic calculation ====
 
==== Basic calculation ====
 +
:→ See also: [[Tutorial:Advanced Rocket Design]]
 
Basic calculation of a rocket's Δv. Use the atmospheric and vacuum thrust values for atmospheric and vacuum Δv, respectively.
 
Basic calculation of a rocket's Δv. Use the atmospheric and vacuum thrust values for atmospheric and vacuum Δv, respectively.
  
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==== Transitional (true) Δv ====
 
==== Transitional (true) Δv ====
{| class="wikitable" align="left"
+
{| class="wikitable" style="float:left;margin:0.5em;"
 
! Body !! &Delta;v<sub>out</sub>
 
! Body !! &Delta;v<sub>out</sub>
 
|-
 
|-
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'''Total &Delta;v values'''
 
'''Total &Delta;v values'''
* http://wiki.kerbalspaceprogram.com/w/images/7/73/KerbinDeltaVMap.png
+
* [[:File:KerbinDeltaVMap.png]]
 
* http://www.skyrender.net/lp/ksp/system_map.png
 
* http://www.skyrender.net/lp/ksp/system_map.png
 
'''&Delta;v change values'''
 
'''&Delta;v change values'''
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=== Thrust to weight ratio (TWR) ===
 
=== Thrust to weight ratio (TWR) ===
 +
:→ See also [[Terminology#twr|Terminology]]
 
This is Newton's Second Law. If the ratio is less than 1 the craft will not lift off the ground.
 
This is Newton's Second Law. If the ratio is less than 1 the craft will not lift off the ground.
  

Revision as of 15:32, 28 June 2013

Kerbal Space Program rocket scientist's cheat sheet: Delta-v maps, equations and more for your reference so you can get from here to there and back again.

Mathematics

Delta-v (Δv)

Basic calculation

→ See also: Tutorial:Advanced Rocket Design

Basic calculation of a rocket's Δv. Use the atmospheric and vacuum thrust values for atmospheric and vacuum Δv, respectively.

Transitional (true) Δv

Body Δvout
Kerbin 1000 m/s2
other bodies' data missing

Calculation of a rocket's Δv, taking an atmosphere into account. Δvout is the amount of Δv required to leave a body's atmosphere.

Maps

Various fan-made maps showing the Δv required to travel to a certain body.

Total Δv values

Δv change values

Δv nomogram

Thrust to weight ratio (TWR)

→ See also Terminology

This is Newton's Second Law. If the ratio is less than 1 the craft will not lift off the ground.

Combined specific impulse (Isp)

If the Isp is the same for all engines in a stage, then the Isp is equal to a single engine. If the Isp is different for engines in a single stage, then use the following equation:

See also

Links to collections of reference material.