the blood ocean medium exhibits:
- corrosive properties
- abnormal particulate density
- acoustic distortion
- [REDACTED]
continuous camera feed is impossible.
sonar returns are unreliable.
sm-13 will operate blind.
navigation must be performed by still-image capture.
the vessel is not rated for retrieval.
this is not an omission.
this is a design parameter.
note: the term "iron lung" is not official nomenclature.
it is an engineering nickname that has persisted.
we recommend it be adopted, as it increases pilot compliance.
additional note: hull scratches found on sm-7, sm-9, and sm-11 during pre-mission inspection.
scratches appear to be from inside the cabin.
scratches were sanded down before deployment.