The nxfearless_modelonly.rar file you have requested: The Outdated Abyss / NX Fearless - 2.29mb is not available. Perhaps try browsing all files for the game Star Trek: Bridge Commander and upload any files you want to share or are missing. This is the only information we could locate:
Here is the NX Fearless NX 05, a ship from the Star Trek Enterprise Period. This ship appears to have elements of both the NX - 01 and the Original TOS Enterprise as the ship fits between the NX period and the TOS Era. The engines as an example show these elements.