48-7S "Spark" Liquid Fuel Engine
48-7S "Spark" Liquid Fuel Engine | ||
Liquid fuel engine by Rockomax Conglomerate | ||
Radial size | Tiny | |
Cost | (total) | 240.00 |
Mass | (total) | 0.130 t |
Drag | 0.2 | |
Max. Temp. | 2000 K | |
Impact Tolerance | 7 m/s | |
Research | Propulsion Systems | |
Unlock cost | 2 800 | |
Since version | 0.21 | |
Part configuration | liquidEngine48-7S_v2.cfg | |
Maximum thrust | (1 atm) | 16.56 kN |
(vacuum) | 20.00 kN | |
Isp | (1 atm) | 265 s |
(vacuum) | 320 s | |
Fuel consumption | 1.27 /s | |
Thrust vectoring | 3 ° | |
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 | 140 l |
The 48-7S "Spark" Liquid Fuel Engine is a liquid fuel engine for small craft.
Product description
“ | The 48-7S may be small, but it packs quite a punch for its size. This little engine is a testament to how larger does not always means more advanced, at least according to Rockomax's marketing department. The box it comes in is pretty cool, in any case. — Rockomax Conglomerate |
” |
Usage
The Spark is a size 0 engine, typically placed on the bottom of a stage. Its specific impulse and thrust-to-weight ratio are similar to the LV-T45 "Swivel" Liquid Fuel Engine, and it can be used to serve a similar function. However, its unique size and mass make it a good upper stage engine; it has a reasonable specific impulse, and a low mass. By using a Spark instead of a heavier LV-909 "Terrier" Liquid Fuel Engine, a vessel's reduced dry mass may allow for greater delta-V.
The 24-77 "Twitch" Liquid Fuel Engine is the radial variant of the Spark. It has equal thrust, but has a lower specific impulse.
Variants
As of version 1.6 this engine has three models that can be switched in the editor.
Trivia
- The 48-7S "Spark" Liquid Fuel Engine was originally from the KSPX parts mod.
- Prior to version 1.7, due to its relatively high Isp and thrust to weight ratio, the 48-7S was remarkably capable in ascent, transfer, and lander roles and had a thrust to weight ratio second only to the Kerbodyne KR-2L Advanced Engine and the S3 KS-25x4 Engine Cluster.
Changes
- Atmospheric Isp increased from 260 to 265
- Mass increased from 0.1 to 0.13
- Atmospheric Isp decreased from 270 to 260
- New model and texture
- Added 3 variants
- Thrust increased to 20 kN and 320 specific impulse in vacuum.
- Cost increased from 200 to 240.
- Thrust decreased to 18kN.
- Thrust increased from 20 to 30 kN, description changed.
- Initial release