L2 Certification¶
Status: CERTIFIED ✓¶
Certified 22 February 2026 at Enköping, Sweden.
Timeline¶
| Date | Milestone |
|---|---|
| 27 January 2026 | L2 written exam passed (Certificate #2343) |
| 22 February 2026 | L2 certification flight — Successful |
Motor¶
Originally ordered an AeroTech J420R-14A reload from Space Rocket Technology (Germany) in late January, to be shipped to Peter Steen in Sweden. A DHL shipping label (CD042602182DE) was created on 4 February 2026, but the package was never actually picked up — no tracking movement after three weeks.
Rolf Örell had some ~25-year-old AeroTech J350 reloads in stock and offered one for the certification flight. It worked perfectly.
| Parameter | Value |
|---|---|
| Motor | AeroTech J350 (~25-year-old reload from Rolf Örell) |
| Casing | 38/720 (38mm, 720 N-s max) |
Hardware¶
Aerotech reloadable motor casings purchased from Rolf Örell:
| Casing | Diameter | Max Impulse | Use |
|---|---|---|---|
| 38/720 | 38mm | 720 N-s | J350 (L2), future J motors |
| 29/180 | 29mm | 180 N-s | H128W (L1), future H motors |
Rocket Configuration¶
Apogee Peregrine "SIPSIK" in full L2 configuration:
| Parameter | Value |
|---|---|
| Length | 175 cm |
| Diameter | 100 mm |
| Liftoff weight | 3100 g |
| CG | 115 cm from nose tip |
| CP | 130 cm from nose tip |
| Expected altitude | 1100 m |
| Actual altitude | ~1000 m (estimated, flight log not yet downloaded) |
| Recovery | Dual deploy, 18" + 48" electronic |
| Flight computer | CATS Vega |
Requirements¶
Per Tripoli L2 certification: - [x] Current L1 certification - [x] Pass L2 written exam - [x] Successfully fly and recover rocket using J, K, or L motor - [x] Witnessed by Prefect, TAP, or Board member
Logistics¶
Same as L1: car on Tallinn-Stockholm ferry, drive to Enköping. Motor purchased/shipped within Sweden (Tallink ferry ban on dangerous substances).