RV-1 "Cub" Vernier Engine

From Kerbal Space Program Wiki
Jump to navigation Jump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
RV-1 "Cub" Vernier Engine
Part image
Part image
Liquid fuel engine by
Reaction Systems Ltd

Radial size Tiny, Radial mounted
Cost (total) 800 Funds
Mass (total) 0.18 t
Drag 0.3-0.2
Max. Temp. 2000 K
Impact Tolerance 7 m/s
Research  Precision Propulsion
Unlock cost 3,200 Funds
Since version 1.4.1
Part configuration LiquidEngineRV-1.cfg
Maximum thrust (1 atm) 28.903225806452 kN
(vacuum) 32 kN
Isp (1 atm) 280 s
(vacuum) 310 s
Fuel consumption 2.1052205687286 Units of fuel/s
Thrust vectoring 22.5 °
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 170 l

The RV-1 "Cub" Vernier Engine is a small side-mounted engine that can be used for aesthetics, thrust augmentation, and additional thrust vector control. It is typically paired with the RK-7 "Kodiak" Liquid Fueled Engine.

Usage

The Cub is in some respects an upgrade to the Mk-55 Thud. For its size, the Cub has relatively good Isp and extremely good TWR, more comparable to a size 2 engine than anything else. It also features the highest gimbal range in the game. The trade-off is in the greater relative and absolute cost, and position several nodes farther up the tech tree.

Product description

Mew! These little vernier engines have a huge deflection, but can only gimbal in one dimension.

Reaction Systems Ltd

Trivia

Real-world comparison

The RV-1 was inspired by the Russian RD-107 engine but made it recognizable as part of a R7 rocket.

Changes

1.6
  • Moved tech from Heavier Rocketry to Precision Propulsion
  • Increased unlock cost from 3000 to 3200
  • Decreased cost from 1000 to 800
  • Increased crash tolerance from 6 to 7
  • Decreased Vacuum thrust from 40 to 32
  • Improved ASL ISP from 270 to 280
  • Decreased Vacuum ISP from 320 to 310
1.4.5
  • Added ModuleTestSubject
1.4.1
  • Initial Release