As far as i can remember the NTF had a very heavy fleet makeup. They had some cruisers and corvettes but they seemed to have a LOT of destroyers. this is from the FS wiki where you see the casualties in terms of ships for the NTF.
I found it odd that the NTF was able hold off the massive industrial and military might of the GTVA at bay for so long even considering they were in defensive positions around the nodes.
After i saw the number of Hecates and Orions lost by the NTF i understood why.
the overall fleet size for the entire NTF was massive for just 3 sistems . I cand remember exactly how many there were but i think there were something like 4 destroyers per sistem at least.
On the other hand let me check it out and get back to you !
Edit: Well it seems they had at least 8 Orion class destroyers .
Also a correction is needed as per the number of cruisers availble they seemed to have a LOT of them and quite a few Cv's !
I dont know exactly how many Hecate's they had but im asuming they had at leat half as many Hecates as they had Orions. Overall considering the number of ships i would say they had a VERY big concentration of ships for just 3 sistems .
I find it odd that i should say that since i also do not consider the presence of 2 or more destroyers per sistem that much.
I find it much considering the fact they were all defecting traitors to the terran empire.....i mean GTVA