OTV POWERPLANT


The space truck will be powered by the Aerojet/Rocketdyne RL10C–2–1 rocket engine (Image A). The nozzle is extended to add 3 seconds to the Specific Impulse (Isp) of the rocket engine.

The rocket engine specifications are given in Table 1.
Image A: An example of an RL10 rocket engine

THRUST

110,093

N

MASS

301

kg

NOZZLE EXTENSION MASS

25

kg

NOZZLE DIAMETER

2.15

m

LENGTH (NOZZLE EXTENDED)

4.15

m

SPECIFIC IMPULSE (NOZZLE EXTENDED)

465.5

s

EXHAUST VELOCITY (NOZZLE EXTENDED)

4.565

kps

MIXTURE RATIO

5.88

:1

Table 1: RL10C–2–1 rocket engine specifications

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