Apex: Amateur Rocket Simulator

A Julia-based rocket trajectory simulator for amateur and professional rocketry. The package provides both 2D and 3D simulation capabilities with shared components.

Features

Apex2D:

• Fast 2D simulation in a flat Earth model
• Atmospheric models using the 1976 US Standard Atmosphere
• Support for constant thrust and RASP format engines
• Drag interpolation from tabular data
• Angle sweep simulations for trajectory optimisation

Apex3D

• Full 3D simulation with spherical Earth model
• Geographic coordinate support (latitude, longitude, altitude)
• Coriolis and centrifugal force effects
• 3D visualisation capabilities
• Support for wind modelling including NASA Horizontal Wind Model

Shared Components:

• Atmospheric models
• Engine models with RASP format support
• Aerodynamics models
• Wind models