Here is a clear view of the propulsion unit on the rear of the Yasen's torpedo. You can see the twin, counter rotating blades. The rear set has twice as many blades as the front set. This pushes the torpedo in a straight line (not spinning out of control) and extremely fast. 65+ knots.
DrPatreon
2020-04-11 16:40:06 +0000 UTCAaron Amick
2020-04-05 11:49:44 +0000 UTC