General and specific research bonuses

[Seyhall]

Alright, I know (I'm pretty sure) that research levels in weaponry systems, shields, and ship armor give a bonus per level to ALL ships, from scout to bomber -- this is correct, right?

But what about research like jet engines, impulse systems, and hyperspeed engines? Do they give bonus to all ships or only to ships that use those technologies?

Also, does the research of laser systems give a bonus to the defense of laser beacon? The logical answer is yes, but the explanation only says, "Receives bonus from: Weapon technologies, Ship armor, Shields."

Thank you for any answers!

[TeRMiNaTe]

Jet engines, impulse systems, and hyperspeed engines give bonus to all ships. The same is with weaponry systems, shields, and ship armor. But the laser systems do not give any bonus to any ships or defence.

[keleedo]

i was under the understanding that laser research increased the % of the attack modifier for all shiips ,if not what is the point
k

[Seyhall]

Some researches are only necessary to enable other researches. It looks like laser tech is that way.