Johnson Aeronautics offers engineering services to the aerospace industry, specializing in analysis of helicopters, tiltrotors, and rotorcraft.

CAMRAD II is the principal software product of Johnson Aeronautics. CAMRAD II can calculate the performance, loads, vibration, response, and stability of rotorcraft, including helicopters and tiltrotors; as well as wind turbines, propellers, and fixed wing aircraft.

Rotorcraft Aeromechanics by Wayne Johnson: Errata