N3.5 rocket portal

Specification

Rocket	N-3.5 (Alpha, Beta, Charlie, Delta)
Airframe material	Aluminum
Length	172 cm
Internal diameter	76 mm
External diameter	78.6 mm
Dry mass	6.655 kg
Total mass	8.747 kg
Simulated apogee	1,650 m
Propellant	KNSB
Simulated total impulse	2,976 [N•s] (L1949 motor)
Total impulse from the static test	2,773 [N•s] (L1305 motor)

General information

Component	Link
Rocket measured data
Rocket photos	https://photos.app.goo.gl/jmtvWTYFcyfQ43f86

Airframe

Component	Link
OpenRocket simulation file
Airframe CAD data
3D Print data (for Aluminum body) (Nose cone, launch lugs)
3D Print data (for Fibreglass body) (Nose cone, launch lugs)
Avionics bay design data
Parachute design data
Fin design data

Recovery

Component	Link
Flight computer PCB design (Wifi-based. 3 of 4 N-3 rockets use this design)
Flight computer PCB design (LoRa-based. 1 of 4 N-3 rocket uses this design)
Ejection PCB design
Flight computer firmware
Ground station dashboard

Propulsion

Component	Link
Solid rocket motor design calculation
OpenMotor simulation file
Casing CAD data
Casing drawing
Nozzle CAD data
Nozzle drawing (No mounting holes)
Bulkhead CAD data
Bulkhead drawing (No mounting holes)
SRM casting video

Static test stand

Component	Link
Ignitor design
Ignition circuit design data
Ignition controller PCB design data
Ignition controller firmware
Static test stand design calculation
Static test stand CAD data

Testing

Component	Link
Static test data
Static test videos
Pop test data
Pop test video
Parachute test video
Drone test data

Launch preparation documents

Component	Link
Launch procedure
Dry run
Participants list

Launch data

Component	Link
Sensor telemetry data
Video from onboard camera
Photos for launch