State of deterioration, available equipment, and real world experience of the superintendent also play a major factor in demolition schedules. Things often go wrong in demo, it's a matter of mitigating the severity of it.
The course they were going would have worked just fine had they secured...
I left the aero industry over safety at the beginning od covid. You raise a concern and it's a black mark on you.
Barry and his pen, specifically at Spirit, is bad. I've heard many scary stories from welders and machinists from a certain Texas based company. Falsified NDT documents, aluminum...
I was the unlucky one who got to go weld the braces, and smart call on the first guy. One rust explosion sent a hot bb somewhere no one wants red hot metal and it took me a few minutes just to wiggle my way on out of there.
But it was weld that stuff down or let an accident happen. Our geotech...
1503, exavators are often run back and forth on old bridges as some of the main demo tools, be it for moving mats, other equipment, busting concrete, etc.
A few years back a company I was working for had an issue with a collapse during a demo job. Someone forgot to weld some braces to the span...
Complacency kills.
You pilots wouldn't even want to know what silliness goes on in the maintenance hanger and machine shops that gets signed off as good because "the plane has to fly".
Safety is going downhill overall in aviation and everyone is allowing it to happen.
The few times I have done dies from full hardness, it has always only been by grinding. Waste of time and money. It will be more beneficial to rough, heat treat, grind, and and blue - lap/polish by hand.
4340 would be a cheaper option.
Maybe it's my jaded outlook on things, but I'm with little inch. The only engineering "disaster" is this being in this forum. Engineering isn't always the answer, and sometimes is the reason for disaster.
Tug, the video of the ring being set was of V1 hull. As far as I am aware, no video exists of the rings being cleaned of old adhesive and set on the V2 hull.
It wasn't just as machined either. The VTL the rings were machined on is a few feet away in the background. It probably just got some...
Were any traces of adhesive found on the OD of the outer most layer and ID of the inner? A few of the photos of the recovered wreckage made it look like they did bot have complete coverage of adhesive. I think one photo showed a clean line right up to only about half of the outer layer. V1 had...
OG did not restart counts on dives between V1 and V2. Only dives 2000m and below on V2 were 63, 65-70, 73, 75-76, 79-83, and the implosion dive 88.V2 began its diving with dive 50. V2 dives were mostly 200m or less test dives, mostly at depths of 1-10m. Two aborted dives around 1300m and 1700m...
SWComposits, I had read it in the maintenance and repair log posted by the USCG in some liks above. I'm away from my PC, but I'll look through it agaín real quick and try to copy and paste some of that info.
Edit:
Direct link to log...
Tug, the ring setting video we saw was of the first dome that was discarded in 2019/2020. A new hull was installed in house reusing the original rings and components with an even worse adhesive job.
The frame/skids were also bolted directly to the hull with steel fasteners. Many impacts to the...
Testing did get done, just the bare minimum to satisfy what Rush wanted, and no more. Failures of carbon domes is what led him to titanium domes as well as what led to the idea of acoustically monitoring it for cracking. Being told they would have heard the failure creeping up on the 1/3rd scale...
Could be wrong here, but I don't believe Rush had access to a lot of what he was claiming to. It seems to me he had blind trust in the whole thing because the Navy had good results with an old CF hull sub test bed they later retired, and his design was basically a modified version of what they...
No need to weld shims or anything and bring it back to level; Just wasted resources.
We've run fully loaded trains over near instant 4" rises in grade before. Just lower the speed limit and everything will be fine. Clear the debris, replace the timbers, tie plates and hardware, lay some new...
On the pilaster opposite of which has been posted a few times,you can see what appears to be two studs protruding up through the bearing plate, as well as what appears to only be 3" to 4" of bearing area as they sat it down. Without any room to get in from behind, I cannot see how any bolted...
