Rudraरुद्र
Green monopropellant thruster
High-thrust burns on a propellant that is less toxic and easier to handle than hydrazine. A stable green blend and a proprietary catalyst give long mission life and high specific impulse.
Flown in orbit on PSLV-C58 (January 2024) and PSLV-C60 (January 2025).
Pick a thrust level.
From fine attitude control to orbit insertion burns. Choose a size to see its numbers.
Rudra 1
| Variant | Thrust | Impulse bit | Vacuum specific impulse |
|---|---|---|---|
| Rudra 1 | 1 N | under 50 mN s | 235 s |
| Rudra 5 | 5 N | under 0.1 N s | 250 s |
| Rudra 100 | 100 N | under 2.5 N s | 255 s |
Published figures. Propellant blend, mass and envelope are shared under NDA.
Why green.
Safer to handle
The green propellant is less toxic than hydrazine, so fuelling, transport and ground handling are simpler.
High specific impulse
Specific impulse runs from 235 s to 255 s, and a proprietary catalyst extends mission life.
Proven twice in orbit
Rudra has fired in orbit on two PSLV missions a year apart, the second a repeat of the first.
Flight record.
- Green propulsion ground test
A ground test of the green propulsion system.
Flight on PSLV-C58Tested on POEM-3 and declared space-qualified, with Arka.
- Fires again on PSLV-C60
A repeat in-orbit firing on POEM-4.
Replace hydrazine on your next spacecraft.
Tell us the thrust level, propellant budget and launch date. We reply with a sizing and the Rudra datasheet.
Email an engineer Or use the mission form