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Munga wrote:
3 simple words. Shock And Awe. Space Marines are shock troopers, not prolonged siege specialists. As everyone else has stated, they show up, kick ass, then ideally get the hell out. IG are there for prolonged sieges. The most prolonged sieges they would have would be attacking fortresses, where demolishers are rolled out to smash through walls, then they gut the fortress. Whether loyal or traitor, they don't like to fight longer than they have to. They are the elite, and losses cost them. IG or cultists will be setup to deal with the long term efforts.

No, only 1 stated that they didn't have long range artillery so Horus Heresy couldn't happen again, that is the essential detail that other have lacked.

HexHammer wrote:

 Baldeagle91 wrote:
I would presume however laser weapons would still have a 'maximum range' in space.

By comparisons solid projectiles don't have a maximum range.... they just keep going until they hit something, although I presume gravity would have a higher effect due to less resistance, albeit I'm sure machine spirits could calculate for compensations

Maybe in space, but not in normal earth surface conditions, wind resistance would give it a limited distance so it will slow down and drop.

I know some observatories has a powerful laser not only to measure the atmospheric turbulence for adaptive astronomical observations, but also an extremely powerful laser to hit the moon mirrors placed on the moon long ago. The moon has quite a distance.

I'm afraid that "sloped armor" on the Tiger 1 tank is mere due to chance than intentional.

Well we were talking about space specifically in that quote. laser that is simply projecting light and one that is required to slice through armour like butter are slightly different things. It's an interesting discussion but in all honest sci-fi representations of small attack craft and laser in space, might possibly be inaccurate, personally I feel tradition style battleships with kinetic weaponry would probably have a massive resurgence due to fuel and issues concerning vacums.

Well navies knew about the effectiveness of sloped armour before ironclads were even a thing... I think circa 1700's, at least early to mid 1800's. Certainly by the late 1800's and early 1900's they were talking about LOS thickness, deflection rates, effectiveness of single vs dual plates etc. All stuff discussed by landship designers in ww1 and tank designers in the interwar years. Fortifications also used sloped walls for deflection purposes since antiquity.

Concerning the Tiger I.... it actually mentions angling armour in the Crew Manual. German tank designers also quite actively argued the benefits of more extreme slopes vs the extra internal space and lower weight. You'd be surprised how 'unboxy' most stereotypically 'boxy' tanks are because of very intentional designs.

 Baldeagle91 wrote:

Well navies knew about the effectiveness of sloped armour before ironclads were even a thing... I think circa 1700's, at least early to mid 1800's. Certainly by the late 1800's and early 1900's they were talking about LOS thickness, deflection rates, effectiveness of single vs dual plates etc. All stuff discussed by landship designers in ww1 and tank designers in the interwar years. Fortifications also used sloped walls for deflection purposes since antiquity.

Indeed. Leonardo DaVinci's design of a tank even had sloped armor on it. That's the 1400's

What's also interesting is that sloped armor helps defend against a laser as well, as the focus of the beam gets spread out over more surface.

For the Lascannon, I seem to recall that it had a range of 2km, but I have no idea where that's from.