Crossing the entire federation without refueling is plenty, we don't need an additional 2x passes. Remember, we have Pharos stations for antimatter top-ups.
If this were an explorer, I'd say an enthusiastic yes to extra range. However, this is a defensive ship* that is intended to stay within our borders; we don't need that extra range.
And as your two (Edit: plus!) immediate responses indicate, if antimatter is offered, it will be taken, even if not needed**. We need to focus on module synergies to justify this ship, and I'd rather not waste the space.
* But what about deep strike capability? If we can spare our defensive line cruiser for deep strikes, the war's already over. The capacity is unneeded. But what about when the federation grows? Refuelling! Stations! And if it's not close enough to respond to an emergency on a single tank, it's not close enough to respond at all.
** As far as I'm concerned, if Sayle offers antimatter storage, then Sayle is choosing to include antimatter storage, it's such a reflexive yes-vote for so much of this thread. I specified a small cargo for similar reasons; if larger cargo is offered, it will be taken, regardless of actual need.***
*** This is, I think, why some people (myself included) want module plan/theme votes: so we can pre-emptively exclude certain auto-votes, and keep the theme of the dang ship on frelling target.
I disagree.
The Excalibur certainly benefited from being able to ignore the Pharos stations during the war, freeing up fuel for shorter-ranged military ships and having ripple effects on Starfleet logistic.
That independence is why losing the stations did not impede Starfleet offensive operations very much
IRL we even fuel nuclear ships for decades at a time, because the less that fuel is an issue, the greater strategic flexibility a design has.
When ships get big enough, I expect that Extra AM tanks is one of those modules that will become standardized, just like Transporters did. The additional endurance and combat capability is such a force multiplier for Starfleet that most non-specialty designs benefit from having them around
In the meantime, people vote for it because its an objectively good choice on most designs
Just like people usually vote for Cargo Space because that too is an objectively good choice on most designs given Starfleet's preferred model of operations
The Federation needs to match the Excalibur's range. If it can do that without a tank, that's good. If it can't, it needs a tank. They're our two strongest ships and they have to be able to work in concert.
The Federation might be a better raider even.
Probably is
Raiding requires endurance, sensors, and either high base speed or stealth; the Federation-class has two of them at least
Question is whether the Federation will have any to spare in the event of conflict
No, just...no. Using the Federation class as a raider is utterly inappropriate for the design brief and how we've kitted it out. The Excalibur is lean, mean, and fast as hell. The Federation is the fleet anchor, the heavy brusier with a titanium jaw. It's the big stick, not the long arm of the UFP.
Alternatively, the Excalibur is the sword, the Federation the shield.
1) The vast majority of civilian ships doing logistics runs are fusion-powered, with warp factors two or more below the military vessels. Facilities, fuel depots, shipyards and space stations are fixed and cant run away.
The Feddie would have no issue reaching either, and its max cruise would allow it outrun most pursuit over any sort of distance
2) We dont get to tell Starfleet how to use a given vessel
The Attenborough was used to patrol for pirates
The Excalibur was designed to be a warship, but spent significant parts of the war wrecking Klingon supply convoys made up of civilian ships, then ended up being used as a cutrate explorer in the 2250s
This ship is going to end up a lot better at the role of raider than the Callie was as explorer
Raiders have to emphasize two things
Burst DPS and speed. The Federation while fast for its size is still far too slow to be a raider, both in sprint speed and in impulse. The Federation is a bruiser, you don't send it to hit and opponent and run, you send it to have a knock down drag out conflict and win.
The German battleships of the Second World War were famously feared for their potential as raiders if they broke out into the Atlantic and cut the convoys to the US; which was why Bismarck drew much of the attention of Home Fleet, Tirpitz locked down several capital ships just by sitting in port in Norway, and Scharnhorst was sunk going after Arctic convoys after the Brits broke their codes.
Generally, raiders need at least three things of these five factors for success:
-Long range sensors, their own or those of others, to find their targets
-High approach and disengage speed relative to their targets
-High range/endurance
-Stealth
-Sufficient firepower for the target
If Im burning enemy supply convoys or fuel depots, or scragging an enemy dilithium mining operation, I need much less firepower than I would going after an armed military space station behind belts of defense satellites or an enemy warship going home for repairs/resupply