The Cheats screen, seen from the launchpad. This screen has ten true/false options that change the gameplay of KSP: Hack Gravity - Slider changes gravity from 0.01 Gs to 10 Gs. From Kerbal Space Program Wiki Cheat sheet (Redirected from Cheat Sheet/nl) Jump to: navigation, search (Deze pagina wordt nog vertaald) Kerbal space program raketwetenschappers cheat sheet: Delta-v kaarten, formules en meer voor jou referentie, zodat je van hier naar daar en weer terug kan Contents. Kerbal Space Program. All Discussions Screenshots Artwork Broadcasts Videos Workshop News Guides Reviews. Not sure if there is a hyperedit for 0.20 though. So you will most likely be using the infinite fuel cheat in the debug menu #4. Sierraone Jul 16, 2013 @ 8:19pm.
- Cached
- KSP 1.2 Debug/Cheat Menu - Technical Support (PC, Modded ...
- PC Cheats - Kerbal Space Program Wiki Guide - IGN
- Ksp Cheat Sheet - Lasopacontent
- Delta V Calculator
(Redirected from Cheat Sheet)
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.
- 1Mathematics
- 1.3Delta-v (Δv)
- 2Math examples
Mathematics
Thrust-to-weight ratio (TWR)
- → See also: Thrust-to-weight ratio
This is Newton's Second Law. If the ratio is less than 1 the craft will not lift off the ground. Note that the local gravitational acceleration, which is usually the surface gravity of the body the rocket is starting from, is required.
Where:
- is the thrust of the engines
- the total mass of the craft
- the local gravitational acceleration (usually surface gravity)
Combined specific impulse (Isp)
- → See also: Specific impulse
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:
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.
Where:
- is the velocity change possible in m/s
- is the starting mass in the same unit as
- is the end mass in the same unit as
- is the specific impulse of the engine in seconds
Cached
True Δv of a stage that crosses from atmosphere to vacuum
Body | Δvout |
---|---|
Kerbin | 2500 m/s |
other bodies' data missing |
Calculation of a rocket stage's Δv, taking into account transitioning from atmosphere to vacuum. Δvout is the amount of Δv required to leave a body's atmosphere, not reach orbit. This equation is useful to figure out the actual Δv of a stage that transitions from atmosphere to vacuum.
Maps
Various fan-made maps showing the Δv required to travel to a certain body.
Subway style Δv map (KSP 1.2.1):
Total Δv values
Δv change values
Δv with Phase Angles
Precise Total Δv values
WAC's Δv Map for KSP 1.0.4
Maximum Δv chart
- This chart is a quick guide to what engine to use for a single stage interplanetary ship. No matter how much fuel you add you will never reach these ΔV without staging to shed mass or using the slingshot maneuver. (These calculations use a full/empty fuel-tank mass ratio of 9 for all engines except those noted.)
ISP(Vac) (s) | Max Δv (m/s) | Engines | Remarks |
---|---|---|---|
250 | 5249 | O-10 'Puff' | Monopropellant (max full/empty mass ratio = 8.5) |
290 | 6249 | LV-1R 'Spider' 24-77 'Twitch' | |
300 | 6464 | KR-1x2 'Twin-Boar' | |
305 | 6572 | CR-7 R.A.P.I.E.R. Mk-55 'Thud' | |
310 | 6680 | LV-T30 'Reliant' RE-M3 'Mainsail' | |
315 | 6787 | LV-1 'Ant' KS-25 'Vector' KS-25x4 'Mammoth' | |
320 | 6895 | 48-7S 'Spark' LV-T45 'Swivel' RE-I5 'Skipper' | |
340 | 7326 | KR-2L+ 'Rhino' T-1 'Dart' | |
345 | 7434 | LV-909 'Terrier' | |
350 | 7542 | RE-L10 'Poodle' | |
800 | 17238 | LV-N 'Nerv' | |
4200 | 58783 | IX-6315 'Dawn' | Xenon (max full/empty mass ratio = 4.167) |
(Version: 1.6.1)
Math examples
TWR
- Copy template:
- TWR = F / (m * g) > 1
Isp
- When Isp is the same for all engines in a stage, then the Isp is equal to a single engine. So six 200 Isp engines still yields only 200 Isp.
- When Isp is different for engines in a single stage, then use the following equation:
- Equation:
- Simplified:
- Isp = ( F1 + F2 + ... ) / ( ( F1 / Isp1 ) + ( F2 / Isp2 ) + ... )
- Explained:
- Isp = ( Force of thrust of 1st engine + Force of thrust of 2nd engine...and so on... ) / ( ( Force of thrust of 1st engine / Isp of 1st engine ) + ( Force of thrust of 2nd engine / Isp of 2nd engine ) + ...and so on... )
- Example:
- Two engines, one rated 200 newtons and 120 seconds Isp ; another engine rated 50 newtons and 200 seconds Isp.
- Isp = (200 newtons + 50 newtons) / ( ( 200 newtons / 120 ) + ( 50 newtons / 200 ) = 130.4347826 seconds Isp
Δv
- For atmospheric Δv value, use atmospheric values.
- For vacuum Δv value, use vacuum values.
- Use this equation to figure out the Δv per stage:
- Equation:
- Simplified:
- Δv = ln ( Mstart / Mdry ) * Isp * g
- Explained:
- Δv = ln ( starting mass / dry mass ) X Isp X 9.81
- Example:
- Single stage rocket that weighs 23 tons when full, 15 tons when fuel is emptied, and engine that outputs 120 seconds Isp.
- Δv = ln ( 23 Tons / 15 Tons ) × 120 seconds Isp × 9.81m/s² = Total Δv of 503.0152618 m/s
Maximum Δv
- Simplified version of the Δv calculation to find the maximum Δv a craft with the given ISP could hope to achieve. This is done by using a magic 0 mass engine and not having a payload.
- Equation:
- Simplified:
- Δv =21.576745349086 * Isp
- Explained / Examples:
- This calculation only uses the mass of the fuel tanks and so the ln ( Mstart / Mdry ) part of the Δv equation has been replaced by a constant as Mstart / Mdry is always 9 (or worse with some fuel tanks) regardless of how many fuel tanks you use.
- The following example will use a single stage and fuel tanks in the T-100 to Jumbo 64 range with an engine that outputs 380 seconds Isp.
- Δv = ln ( 18 Tons / 2 Tons ) × 380 seconds Isp × 9.81m/s² = Maximum Δv of 8199.1632327878 m/s
- Δv = 2.1972245773 × 380 seconds Isp × 9.82m/s² = Maximum Δv of 8199.1632327878 m/s (Replaced the log of mass with a constant as the ratio of total mass to dry mass is constant regardless of the number of tanks used as there is no other mass involved)
- Δv = 21.576745349086 × 380 seconds Isp = Maximum Δv of 8199.1632327878 m/s (Reduced to its most simple form by combining all the constants)
True Δv
- How to calculate the Δv of a rocket stage that transitions from Kerbin atmosphere to vacuum.
- Assumption: It takes roughly 2500 m/s of Δv to escape Kerbin's atmosphere before vacuum Δv values take over for the stage powering the transition (actual value ranges between 2000 m/s and 3400 m/s depending on ascent). Note that, as of KSP 1.3.1, around 3800 m/s of Δv is required to reach an 80km orbit from the KSC.
- Note: This equation is a guess, an approximation, and is not 100% accurate. Per forum user stupid_chris who came up with the equation: 'The results will vary a bit depending on your TWR and such, but it should usually be pretty darn accurate.'
- Equation for Kerbin atmospheric escape:
- Simplified:
- True Δv = ( ( Δv atm - 2500 ) / Δv atm ) * Δv vac + 2500
- Explained:
- True Δv = ( ( Total Δv in atmosphere - 2500 m/s) / Total Δv in atmosphere ) X Total Δv in vacuum + 2500
- Example:
- Single stage with total atmospheric Δv of 5000 m/s, and rated 6000 Δv in vacuum.
- Transitional Δv = ( ( 5000 Δv atm - 2500 Δv required to escape Kerbin atmosphere ) / 5000 Δv atm ) X 6000 Δv vac + 2500 Δv required to escape Kerbin atmosphere = Total Δv of 5500 m/s
See also
Retrieved from 'https://wiki.kerbalspaceprogram.com/index.php?title=Cheat_sheet&oldid=97452'
< Cheat sheet(Redirected from Cheat Sheet/nl)
(Deze pagina wordt nog vertaald)Kerbal space program raketwetenschappers cheat sheet: Delta-v kaarten, formules en meer voor jou referentie, zodat je van hier naar daar en weer terug kan
- 1Wiskunde
- 1.3Delta-v (Δv)
- 2Math examples
Wiskunde
Kracht/Gewicht Ratio (TWR)
- → See also: Thrust-to-weight ratio
Dit is de tweede wet van Newton. Als de ratio kleiner dan 1 is, zal het voertuig niet van de grond komen. Je moet wel rekening houden met de zwaartekracht van de lanceerplaats en de manier van lanceren: een vliegtuig zal eerder van de grond komen, omdat vliegtuigen gebruik maken van horizontale snelheid. Ook zal een raket een hogere TWR hebben op bijvoorbeeld Minmus, omdat daar een lagere aantrekkingskracht aanwezig is.
Where:
- Kracht van de motoren
- Totale massa van het object
- Lokale versnelling van de zwaartekracht (Oppervlaktezwaartekracht)
Gecombineerde specifieke stoot (Isp)
- → See also: Specific impulse
Als de Isp hetzelfde is voor alle motoren in een trap, dan is de Isp gelijk aan die van een motor van hetzelfde soort. Als de Isp verschillend is voor de motoren in een trap, gebruik je de volgende formule:
Delta-v (Δv)
Basis berekening
- → 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.
Where:
- Is de verandering van snelheid in m/s
Basis berekening voor een raket is de Δv. Gebruik de Atmosferische waarden voor in de Atmosfeer, en de vacuum waarden voor in de ruimte.
- Is de start massa van de raket
- Is de massa van de raket zonder brandstof
- Is de specifieke stoot van de motoren in seconden.
Echte Δv van een stage die begint in de atmosfeer op het lanceerplatform en eindigt in de ruimte
Body | Δvout |
---|---|
Kerbin | 1000 m/s2 |
Geen verdere data bekend |
Het berekenen van de Δv van een rakettrap kan een ander getal geven als de raket nog moet beginnen in de atmosfeer, bijvoorbeeld op het lanceerplatform. Δvout is the hoeveelheid Δv die nodig is om de atmosfeer van een hemellichaam te verlaten, NIET om een baan te bereiken. Deze formule is handig om uit te vinden of de hoeveelheid Δv in de Transition stage genoeg is om van de atmosfeer in de ruimte te komen.
Maps
Een fan made map die laat zien hoeveel Δv nodig is om naar een andere plek te gaan.
Total Δv values
Δv change values
Δv nomogram
Math examples
TWR
- Copy template:
- TWR = F / (m * g) > 1
Isp
- When Isp is the same for all engines in a stage, then the Isp is equal to a single engine. So six 200 Isp engines still yields only 200 Isp.
- When Isp is different for engines in a single stage, then use the following equation:
- Equation:
- Simplified:
- Isp = ( F1 + F2 + ... ) / ( ( F1 / Isp1 ) + ( F2 / Isp2 ) + ... )
- Explained:
- Isp = ( Force of Thrust of 1st Engine + Force of Thrust of 2nd Engine...and so on... ) / ( ( Force of Thrust of 1st Engine / Isp of 1st Engine ) + ( Force of Thrust of 2nd Engine / Isp of 2nd Engine ) + ...and so on... )
- Example:
- Two engines, one rated 200 newtons and 120 seconds Isp ; another engine rated 50 newtons and 200 seconds Isp.
- Isp = (200 newtons + 50 newtons) / ( ( 200 newtons / 120 ) + ( 50 newtons / 200 ) = 130.89 seconds Isp
Δv
- For atmospheric Δv value, use atmospheric thrust values.
- For vacuum Δv value, use vacuum thrust values.
- Use this equation to figure out the Δv per stage:
- Equation:
- Simplified:
- Δv = ln ( Mstart / Mdry ) * Isp * g
- Explained:
- Δv = ln ( Starting Mass / Dry Mass ) X Isp X 9.81
- Example:
KSP 1.2 Debug/Cheat Menu - Technical Support (PC, Modded ...
- Single Stage Rocket that weighs 23 tons when full, 15 tons when fuel is emptied, and engine that outputs 120 seconds Isp.
- Δv = ln ( 23 Tons / 15 Tons ) × 120 seconds Isp × 9.81m/s = Total Δv of 1803.2 m/s2
True Δv
- How to calculate the Δv of a rocket stage that transitions from Kerbin atmosphere to vacuum.
- Assumption: It takes approximately 1000 m/s2 of Δv to escape Kerbin's atmosphere before vacuum Δv values take over for the stage powering the transition.
- Note: This equation is an guess, approximation, and is not 100% accurate. Per forum user stupid_chris who came up with the equation: 'The results will vary a bit depending on your TWR and such, but it should usually be pretty darn accurate.'
- Equation for Kerbin Atmospheric Escape:
- Simplified:
- True Δv = ( ( Δv atm - 1000 ) / Δv atm ) * Δv vac + 1000
- Explained:
- True Δv = ( ( Total Δv in atmosphere - 1000 m/s2) / Total Δv in atmosphere ) X Total Δv in vacuum + 1000
- Example:
PC Cheats - Kerbal Space Program Wiki Guide - IGN
- Single Stage with total atmospheric Δv of 5000 m/s2, and rated 6000 Δv in vacuum.
- Transitional Δv = ( ( 5000 Δv atm - 1000 Δv Required to escape Kerbin atmosphere ) / 5000 Δv atm ) X 6000 Δv vac + 1000 Δv Required to escape Kerbin atmosphere = Total Δv of 5800 m/s2
Ksp Cheat Sheet - Lasopacontent
See also
Delta V Calculator
Retrieved from 'https://wiki.kerbalspaceprogram.com/index.php?title=Cheat_sheet/nl&oldid=34902'