45+ knots is the maximum achievable speed, and 50 km is technically impossible at that speed. A torpedo does not need to travel at the maximum speed for the entire planned route, but can sprint in the final phase.Maximum speed and cruising speed are different terms. If the cruising speed is 45 knots and it can still have a range of 50 km, yes, Akya may be the best torpedo. This is possible.
Wake homing sensors, following the zigzag pattern in the wake, manoeuvrability to follow the wake pattern, having a proper acoustic signature library and distinguishing decoys from actual targets are far more important than travelling at 45+ and covering 50 km. I think it is more important to have a longer fiber guidance, and longer range in total with the above listed features. Whomever supplying us a torpedo knows the acoustic and wake libraries embedded to that, as well as manoeuvrability envelope and decoy - detection algorithms available to the torpedo. What makes it best is here; we can update these libraries next year however we like, after some measurements.
A torpedo is a propeller, an electric motor, some batteries, a simple controller (even an arduino will do), a warhead of choice (anything that makes a boom and a bubble cavity), a buoyant cylindrical watertight body with a proper nose cone and 2 sets of rudders. What I have described above can even be made by a group of enthusiastic students, anything beyond that is what makes Akya valuable and the struggle of development to us. So a comparison is pointless, it falls within the whole picture of submarine operations and related capabilities.My understanding of Torpedo technologies is primitive. Maybe @Anmdt could tell us how good Akya is comparatively with other similar systems. E.g. French F21.
I can at least count 3 units, but there could be more. It started from 2021 with first trials, then followed by a live torpedo that also can be (and was) used as a training torpedo and finally the prototype which made the cool part in a SINKEX.It says "Asgari Hiz", so minimum speed is 45 kts
EDIT: It also says that System deliveries started in 2021. What does that mean exactly?