Difference between revisions of "Template talk:Stats Table Jet Engines"

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(Created page with "I've seen also what is written in the game, but they are "fake" values - the thrust drops to 0 at that speed values in contradistinction with the given values... ~~~~")
 
(info on thrust curves)
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I've seen also what is written in the game, but they are "fake" values - the thrust drops to 0 at that speed values in contradistinction with the given values... [[User:NWM|NWM]] ([[User talk:NWM|talk]]) 02:40, 28 May 2015 (UTC)
 
I've seen also what is written in the game, but they are "fake" values - the thrust drops to 0 at that speed values in contradistinction with the given values... [[User:NWM|NWM]] ([[User talk:NWM|talk]]) 02:40, 28 May 2015 (UTC)
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:The thrust of jet engines is defined in a way that makes it difficult to display in the stats table. The thrust at a given velocity and altitude is derived from two pre-defined curves in the .cfg files (specific impulse is constant regardless of thrust, unlike rocket engines). The turbojet, for example, has a maximum thrust of 1044 kN, but that's only achieved when traveling at exactly Mach 3 and exactly at sea level, which is a rare scenario in practice. A more complete way to define the thrust than what I put in the table is to list the thrust while stationary at sea level, the optimal velocity, the thrust at that velocity, and the maximum velocity. I couldn't figure out a nice-looking way to display that in the table, but if someone else wants to try, here's the values:
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:{| class="wikitable"
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|-
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! Engine !! ASL stationary thrust !! optimal velocity !! thrust at optimal velocity !! maximum velocity
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|-
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| Basic jet engine
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| 115
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| Mach 1.67
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| 1.46x
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| Mach 2.5
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|-
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| Turbojet engine
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| 180
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| Mach 3
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| 4.9x
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| Mach 5.5
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|-
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| Rapier engine
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| 140
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| Mach 3.7
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| 8.5
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| Mach 6
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|}
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:The rapier engine will probably switch to rocket mode well before it hits Mach 6
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:[[User:VariousMetals|VariousMetals]] ([[User talk:VariousMetals|talk]]) 12:30, 28 May 2015 (UTC)

Revision as of 12:30, 28 May 2015

I've seen also what is written in the game, but they are "fake" values - the thrust drops to 0 at that speed values in contradistinction with the given values... NWM (talk) 02:40, 28 May 2015 (UTC)

The thrust of jet engines is defined in a way that makes it difficult to display in the stats table. The thrust at a given velocity and altitude is derived from two pre-defined curves in the .cfg files (specific impulse is constant regardless of thrust, unlike rocket engines). The turbojet, for example, has a maximum thrust of 1044 kN, but that's only achieved when traveling at exactly Mach 3 and exactly at sea level, which is a rare scenario in practice. A more complete way to define the thrust than what I put in the table is to list the thrust while stationary at sea level, the optimal velocity, the thrust at that velocity, and the maximum velocity. I couldn't figure out a nice-looking way to display that in the table, but if someone else wants to try, here's the values:
Engine ASL stationary thrust optimal velocity thrust at optimal velocity maximum velocity
Basic jet engine 115 Mach 1.67 1.46x Mach 2.5
Turbojet engine 180 Mach 3 4.9x Mach 5.5
Rapier engine 140 Mach 3.7 8.5 Mach 6
The rapier engine will probably switch to rocket mode well before it hits Mach 6
VariousMetals (talk) 12:30, 28 May 2015 (UTC)
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