Mmmmm. A 150kT escort is about the same mass as two supercarriers. Quite large for the first 'proper' ships a race launches into space, if you take the figures literally. It's best not to.
On the other hand, here's a rough comparison:
note: I was looking at making the fighters smaller over Christmas, (by making everything else 10 times larger
) so I did some checking of figures.
SE4 Large carrier 1,200kT
SE4 Large fighter 25kT
American supercarrier 60-80kT
F14 fighter jet 0.03kT (33 tons fully loaded I think)
Current HMS Ark Royal 20kT
Sea Harrier (small fighter?) 0.006kT (unloaded - probably about 10t with fuel and weapons)
The SE4 carrier is 15-20 times bigger than a modern supercarrier, but the SE4 fighter is almost a thousand times bigger than the modern equivalent. This is mostly due to SE4's tardis-like cargo handling.
Again, they're just numbers. If you don't like 'em (I'm more concerned about being able to fire heavy ship weapons at fighters at the moment), change 'em.
The other thing I've discovered is that British tons and tonnes are almost exactly the same mass, but American tons are slightly different.
