Difference between revisions of "RK-7 "Kodiak" Liquid Fueled Engine"
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== Usage == | == Usage == | ||
| − | + | Prior to 1.6, the RK-7's thrust, mass, Isp, and lack of vectoring make it almost identical (if more expensive) than the LV-T30, meaning it can in principle be used in the same situations. The high cost and position on the tech tree, however, make it an inferior choice in most situations. | |
| + | |||
| + | After changes in 1.6, RK-7 have an increase in thrust, giving it a better ASL TWR and ISP, while the cost is lowered to make it identical to LV-T30. While it still high on the tech tree, due to its lower cost compare to vector and possibly better TWR than Skiff (craft dependent), once aesthetic is ignored it becomes a good engine for use in carrier mode. | ||
== Product description == | == Product description == | ||
| Line 38: | Line 40: | ||
* Increased crash tolerance from 6 to 9 | * Increased crash tolerance from 6 to 9 | ||
* Increased EC generation from 3 to 5 | * Increased EC generation from 3 to 5 | ||
| − | * Increased thrust from 240 to 260 | + | * Increased ASL thrust to 247 |
| + | * Increased vacuum thrust from 240 to 260 | ||
* Improved Isp | * Improved Isp | ||
;[[1.4.5]] | ;[[1.4.5]] | ||
Revision as of 02:26, 11 February 2019
 | Available only with the Making History Expansion installed. |
| RK-7 "Kodiak" Liquid Fueled Engine | ||
 | ||
| Liquid fuel engine by Reaction Systems Ltd | ||
| Radial size | Medium, Radial mounted | |
| Cost | (total) | 1 100.00 
|
| Mass | (total) | 1.250 t |
| Drag | 0.3-0.2 | |
| Max. Temp. | 2000 K | |
| Impact Tolerance | 9 m/s | |
| Research |  Heavier Rocketry
| |
| Unlock cost | 4 400
| |
| Since version | 1.4.1 | |
| Part configuration | LiquidEngineRK-7.cfg | |
| Maximum thrust | (1 atm) | 247.00 kN |
| (vacuum) | 260.00 kN | |
| Isp | (1 atm) | 285 s |
| (vacuum) | 300 s | |
| Fuel consumption | 17.68  /s
| |
| Thrust vectoring | No | |
| Electricity generated | 5.0 ⚡/s | |
| Testing Environments | ||
| On the surface | Yes | |
| In the ocean | Yes | |
| On the launchpad | Yes | |
| In the atmosphere | Yes | |
| Sub-orbital | Yes | |
| In an orbit | Yes | |
| On an escape | Yes | |
| Docked | No | |
| Test by staging | Yes | |
| Manually testable | Yes | |
| Packed volume | None | |
The RK-7 "Kodiak" is a liquid fueled engine similar in performance to the LV-T30 "Reliant" Liquid Fuel Engine, but with a "Russian" theme. It allows for greater visual and thematic variety in Making History scenarios, and usually is used in conjunction with the RV-1 vernier.
Usage
Prior to 1.6, the RK-7's thrust, mass, Isp, and lack of vectoring make it almost identical (if more expensive) than the LV-T30, meaning it can in principle be used in the same situations. The high cost and position on the tech tree, however, make it an inferior choice in most situations.
After changes in 1.6, RK-7 have an increase in thrust, giving it a better ASL TWR and ISP, while the cost is lowered to make it identical to LV-T30. While it still high on the tech tree, due to its lower cost compare to vector and possibly better TWR than Skiff (craft dependent), once aesthetic is ignored it becomes a good engine for use in carrier mode.
Product description
| “ | A bear of an engine. This quad-nozzled beast comes with multiple cowling options, and no gimbal. Don’t forget those verniers. — Reaction Systems Ltd |
” |
Variants
As of version 1.4.1 this engine has three models that can be switched in the editor: bare, 1.5 m, and and 1.875 m.
Trivia
While bears are often used as a symbol of Russia, [kodiaks] live exclusively in the United States.
Real-world comparison
The RK-7 was inspired by the Russian RD-107 engine.
Changes
- Increased unlock cost from 4200 to 4400
- Decreased cost from 1300 to 1100
- Increased crash tolerance from 6 to 9
- Increased EC generation from 3 to 5
- Increased ASL thrust to 247
- Increased vacuum thrust from 240 to 260
- Improved Isp
- Added ModuleTestSubject
- Initial Release
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