![](https://pbs.twimg.com/media/EWk-mbeXYAE6WeZ.jpg)
sxd408.com
![](https://pbs.twimg.com/media/EWlNBorXQAAzPHA.jpg)
They require a massive volume of air to sustain the combustion. Large engines have a supercharger or multiple turbochargers to sustain flow
users.fini.net/~bersano/engli…
![](https://pbs.twimg.com/media/EWlQ_0wWsAMEfW5.jpg)
scmp.com/article/414760…
Sooo we assume they are testing experimental tech. We can run all over the place with speculation.
There are many "official accounts" of why the crew died. The overarching summary is that the diesel failed to shutdown and the crew "Suffocated".
I believe the crew died because the snorkel intake valve failed shut and the emergency shutdown system for the diesel failed to shutdown the engine. @Aviation_Intel
Cause you always feel a vacuum as a submariner. It can get so bad you just fall asleep and never realize it."
Why wouldn't the crew just emergency blow... open the hatches and go for a swim? Why are the scopes still up?? Why were they found in their own area??? Still at their watch stations....