This photo shows the initial aim and firing of the lanchers. A very nice animation for the lanchers to turn and fire.
This image shows an intial offset to the depth of the two fish just fired.
This image of the same two fish shows that the offset has left one near the surface but the other is now much deeper and would pass under a vessel.
Both the fish missed all targets but what I wanted to note here was that I followed only these two to the end of their fuel run. By the time they both ran out of fuel the separation in depth was so great that they can barly be seen in the same frame. The upper red circled one is still near the surface while the lower blue circled one is at least 100 meters below the surface. While they both ran straight one was affected but something which cause it to run deep. I wonder if the roll of the firing vessle from the first fish fireing, guns firing or sea state affected the trajectory of the second?
These two were fired at the same time and towards the same trajectory but the fish on the left took a port side turn perpendicular to the fish on the right.
All three of these fish ran deep with two going much deeper after firing. Notice the nose up attitude of the fish. They would run straight but their nose would remain turned up anywhere from 20 to 40 degrees.
My last test had the four desroyers firing over 50 fish with an estimated 50% running deep at varying levels. The "run to deep" nose up attitude and depth is not consistant which makes me wonder how much of this has to do with the ships roll on firing. The nose up attitude may be the fish trying to acheive its programed depth but unless programed to asend they will not. The downward trajectory may be causing it to remain on it's downward angle.