
Originally Posted by
Bankoletti
Point is that S-300P and S-300V are not two versions of the same system, they are two different systems entirely, designed by two rivaling bureaus (Almaz and Antey) at that time (in the 70ties). They share similar designation due to the fact that they've both been designed to meet similar specification - however Soviets adopted one for PVO (S-300P) and the other one for Army (S-300V). Each of them use unique missiles, FCS, radars etc., which are not compatible in any way.
Similar designation and similar specifications cause widespread confusion between these two systems up to today, now even more so due to Almaz and Antey, once in fierce competition, merging into the same corporation.
While Russians themselves are using confusing designations, NATO designates them differently: SA-10 and SA-12.
Here are basics of evolution of both families:
1. S-300P / SA-10
a. S-300P (SA-10a/b)
b. S-300PM (SA-10c/d)
c. S-300PMU-1/2 (SA-20)
d. S-300PMU-3 aka S-400 (SA-21)
(naval versions have letter P swapped with F)
2. S-300V / SA-12
a. S-300V (SA-12)
b. S-300VM (SA-23)
(there's no naval versions)
The easiest way to tell them apart is that S-300P uses wheeled and S-300V uses tracked vehicles