Year
2019
Technologies
OpenRocketSolidWorksEagle3D PrintingLaser Cutting
Category
AeroSpaceNU
- The goal of this 7 month project was to safely design, build, test, fly, and recover a high-power rocket with a Level 1 class motor in hopes of receiving a Level 1 certification from the National Association of Rocketry (NAR). If this was successful, I planned to fly this rocket again with a Level 2 class motor in hopes of receiving a Level 2 certification on the same day.
- This rocket is named RP1 (and no... not rocket propellent 1).
- RP1 is a 4in diameter dual deploy rocket with a fore and aft section. The drogue is deployed at apogee and the main chute is deployed at 600ft. It uses 2 strata logger COTS altimeters for redundancy.
Design
Build
Test
Fly
_L2_Flight_Data/w=3840,quality=90,fit=scale-down)
_L1_Flight_Data/w=3840,quality=90,fit=scale-down)
Stats
Overall Rocket Stats
- Diameter: 4in
- Length: 65.25
- Dry Weight: 3.470kg
- Designed in Solidworks
- Simulated in OpenRocket
- 2 Strataloggers for redundant dual deploy.
- Laser cut fins, bulkheads, centering rings, and ebay plates.
- 3D printed ebays and blast caps
- Got NAR L1 and L2 in same day.
L1 Stats
- Motor: J357BS
- Total Impulse: 657 Ns
- Avg. Thrust: 373 N
- Max Thrust: 514 N
- Burn Time: 1.76 s
- Launch Mass: 601 g
- Empty Mass: 264 g
- Delay Charge: 17 s
- Simulated Apogee: 342m
- Actual Apogee: 341.37m
- Simulated Stability: 2.74cal
- Actual Stability: 2.56cal
- Thrust-to-weight: 5.119
L2 Stats
- Motor: I195RL
- Total Impulse: 395 N
- Avg. Thrust: 196 N
- Max Thrust: 235 N
- Burn Time: 2.01 s
- Launch Mass: 417 g
- Empty Mass: 191 g
- Delay Charge: 16 s
- Simulated Apogee: 701m
- Actual Apogee: 731.52m
- Simulated Stability: 2.42cal
- Actual Stability: 2.41cal
- Thrust-to-weight: 8.948
David Antaki NAR L1 L2 Certification Technical Report v2.pdf16880.2KB