Mikeluke Questions

Here's a riddle: What really caused Space Shuttle Challenger's demise?

Answer: Inferior out-of-spec metallurgy. Specifically..substitution of carbon-molly metalurgy for the NASA specified chrome-molly metalurgy of the three original space shuttles' Hydrogen Chambers, Rocket Motors and Valves.

4/12/2016. Remember when the shuttle fleet became flight worthy again after the Hydrogen Chambers were redesigned? The shuttle program continued to be plagued with hydrogen leaks in the rocket motors and valves, which in turn caused postponements of particular launches and sometimes groundings of the shuttle fleet untill the causes of these mysterious leaks were found and repaired. Remember also, that these mysterious hydrogen leaks were persistently common during the years prior to the Challenger's destruction. Why? For one thing, NASA knew the cause of the mysterious hydrogen leaks and for monetary and liability concerns chose to allow the Hydrogen leaks to run full course, sitting on crossed fingers, hoping nothing disastrous would occur.

Well, something disastrous did occur and it literally took all the gold in Fort Knox to rectify the problematic Hydrogen Chambers, yet the "mysterious" hydrogen leaks persisted. Why?

Why? Because NASA didn't replace the defective motors and valves with new ones, hence continued hydrogen leaks till the very end of the shuttle program.

Does anybody know what it took to fix the defective carbon-molly metalurgic recipe.

? What other metal they had to add to the mix? And how much?