Thunderbolt Series

[HX56]

Hello,

I'm aware quite a few of you guys assert yourself as Thunderbolt experts, so let's have this thread as a central place to write all the differences between the different series of Thunderbolts (A1, A2, B, C, Etc). Myself, I am not sure, and I know others aren't sure too, so if someone knows the differences between all the different series and could list them here, that would be great.

[Ziginox]

Why a topic when we have a wiki?
https://wiki.airraidsirens.net/Thunderbolt_Siren_Series