I agree. Multiple Borg vessels would be a problem for the Death Star, and although I'm less sure about the Jem'Hadar having superiority against the shields (as the Feds and their allies were able to improve their shields since the Odyssey was destroyed), the Star Destroyers would definitely be vulnerable to suicide runs.
How so? Even if it is multiple borg ships, a borg cube is only 29 cubic Km, which = 3.07231683... Km in lengh. While this seems MASSIVE the first Death Star was over a few
hundred Km in diameter, if the
d was 400, then the volume of the first Death Star would have been 33493333.333... kilometers!!!! As
volume of a sphere = 4/3 x 3.14 x r^3 in my opinon, 33493333.333 is quite bigger than 29. Now lets calculate fire power. (3 km x 3km) x 6 = 54km surface area, while 3.14 x 400^2 = 502400km surface area. The amount of avalable surface area = how much weapons you can have. Now, for the Borg to match Death Star, they would need about 9303.703704... borg cubes as 502400 / 54 = 9303.703...
Thats only the first Death Star, the second one is even more massive, with a diameter of over 900Km, we will use 920Km d as our estamate. So: 4/3 x 3.14 x 460^3 = 407513386.7Km cubed. As for fire power, it is about 2657696km squared, now 2657696 / 54 = 49216.59259 Borg shps to match the fire power. And don't give me that exhaust vent crap... Borg cubes are way to big to get even
close to the vents, as to are the smallest federation shuttles. Anyhow, the heat vent was fixed on death star 2
The second Death Star corrected several flaws of the original design. The two-meter exhaust vent that doomed the first station was replaced with millions of millimeter heat-dissipating ducts, each designed to seal if excess energy was detected. The second station also boasted far more turbolaser batteries with redesigned targeting systems, allowing them to target starfighters more easily. The greatest concentration of turbolasers was located near the Emperor's throne tower, while the rest were spread across the surface city blocks and sector command centers.
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http://en.wikipedia.org/wiki/Death_Star
Oh yea by the way, the Borg can only have one side of their ship pointed at Death Star, thanks to the cube confegeration, so you can multiply all my Borg ships needed by six, or at least four, as the borg can't point every single side of its cube to fire at the Death Star.
But then again, ill be fair and say that Borg adaptions can help, so do the above only if you want to.
But still, 58520.29629 Borg
cubes just to match the two Death Stars seems quite alot doesn't it?... Does the Borg even have that much Cubes?...
But then that is only if Borg and Death Star weapons are the same gigatons... so take or give a few hundred Borg cubes