Recorded test events
0+
Hybrid Rocket Engine
Icarus
Operating peak thrust
0LBF
Operating impulse
0LBF·S
Peak-thrust prediction
95–99%
Impulse prediction
95–98%
Engine overview
Icarus was the largest and most powerful hybrid engine SRT had built and tested at the time. Two major versions were differentiated by injector design. The system used a lightweight composite tank, custom ball-valve actuation, a removable coin injector with vortex injection, and a cubic graphite nozzle, with stainless-steel plumbing and aluminum injector and chamber hardware.
Program record
Archive- Vehicle
- Daedalus
- Designed
- SRT-32015–2016
- Built
- SRT-32015–2016
- Modified
- SRT-32015–2016
- SRT-42016–2017
- SRT-52017–2018
Engine record
Configuration
- Versions
- I & II
- Vehicle
- Daedalus
- Engine type
- Hybrid
- Oxidizer
- Nitrous Oxide (N2O)
- Fuel
- Hydroxyl-terminated polybutadiene (HTPB)
- Pressurization method
- Self-pressurized
- Injection method
- Swirl Injection
- Axial Injection
Performance
Operating record
- Operating peak thrust
- 560 lbf
- Operating impulse
- 3550 lbf-sec
- Operating specific impulse
- 212 sec
- Peak thrust prediction efficiency
- 0.95–0.99 (95–99%)
- Impulse prediction efficiency
- 0.95–0.98 (95–98%)
Verification
Test record
- Hydrostatic tests
- 20+
- Cold flow tests
- 3
- Static engine tests
- 8