Project Apollo for Orbiter/precis

NASSP (aka 'Project Apollo for Orbiter') simulates the Apollo missions to Earth orbit and the Moon, and is slowly expanding to simulate planned post-Apollo missions that never flew. The latest beta version features a near-full implementation of the control panels in the Command Module and Lunar Module, and an increasingly accurate simulation of the internal systems (e.g. electrical distribution, fuel cells). Also in the latest beta is support for the Virtual AGC software, which allows you to run precisely the same on-board guidance software as used by the real Apollo Guidance Computer. (More...)