Corvettes and Raiders are the logical purveyors of fleet recon, but that does not mean that the FedCom has the mentality to build a ship for that task.
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The FedCom tends to go catch-all in warship design which precludes specialists. They also tend to give their ships extremely low cargo stores for their masses (You can parasite your way through some of that).
As CS put it, Scouts & Merchants (or Hunters) are better options for recon.
The FC has more JS variety in production than any other nation IIRC.
I seem to recall DS/JS giving out the original production info & had the FS & LC each making 4/5 of the 5 OG JS models combined covering all 5.
Plenty of smaller more discrete options for "Recon" via blending in w/ JS traffic.
Actually the FC tends to go "support the DS Fleet" in Warship design.
Which then explains the 2nd issue which is, Who needs Cargo when you have enough collars that you can devote one to a Mammoth permanently & let it act as your "Shuttle" on Resupply duty down to the planet or over to a space station, etc etc w/o having to park your Warship next to an airlock or in close orbit.
At least that is how I explain what is clearly a "lack of balance" between Collars, Cargo, & SI in all 3 FC ships.