> Nothing that they had to constantly resist manglement trying to mangle: Such a failure to hold up standard was the main reason for the failure of the first A

> Nothing that they had to constantly resist manglement trying to mangle: Such a failure to hold up standard was the main reason for the failure of the first Ariane 5 launch. They reused some subsystems from the Ariane 4 rocket, that crashed on Ariane 5 because a numeric overflow. This happened because the much more powerful Ariane 5 came much further during the time this subsystem ran, and had a greater angle that caused the overflow to happen. This had apparently been proven could not happen in the Ariane 4 rocket. When the subsystem and its software was decided to be used on Ariane 5, they did not even run the subsystem with the projected trajectory of the new rocket. If they had the problem would have been found prior to launch. This was luckily not a manned mission.