ActiveRocketsAerospace

L1 Rocket

Level 1 high-power rocketry. Built, waiting on a launch window.

RoleBuilder
Timeline2025
UpdatedMarch 11, 2026
Motor classH or I (single)
Certification bodyNAR
StatusBuilt, launch pending
L1 Rocket
Overview

My L1 certification rocket. Everything is built: airframe, avionics, recovery, parachute, preflight checklist. I just haven't had a launch window yet. The NAR L1 cert requires a witnessed flight at an insured range with a single H or I motor, stable ascent, and a successful parachute recovery. Once I get to a launch, the plan is solid.


The problem

The certification flight isn't the hard part. It's making sure everything works before you're standing on a field with a rocket on the pad and people watching.

Constraints
  • H or I motor only for the cert flight, single certified motor, no clustering
  • Standard parachute recovery required. No tumble, glide, or non-parachute methods.
  • CP has to be marked on the exterior, stability margin documented, and the certifier will ask you technical questions on the spot
Design decisions
  • Kept the avionics bay accessible with one tool, no panel removal. Field conditions are not the place to discover you can't reach something.
  • Wrote explicit go/no-go gates into the preflight checklist tied to physical states, not just task boxes
  • Ran the full preflight procedure dry three times before ever going near a launch
Build process
  1. 01

    OpenRocket for stability modeling and motor selection

  2. 02

    Airframe build and fin alignment

  3. 03

    Avionics and recovery packaging, bench-tested before integration

  4. 04

    Preflight checklist written and dry-run until there were no surprises left in it


Result

Everything built and bench-checked. Waiting on a launch window at an insured NAR range.

What went wrong / what I learned
  • The avionics packaging I thought would work fine needed a full rework once I actually tried to service it. What looks accessible in CAD isn't always accessible with cold hands.
  • Recovery packaging fit was tighter than expected once temperature dropped. Something to spec more carefully on L2.

Tools & Methods

Fusion 360OpenRocketAvionics integrationRecovery systems

Specs

Motor class
H or I (single)
Certification body
NAR
Status
Built, launch pending