The Eagle was among the starships that would have been assembled for the abandoned assault code-named Operation Retrieve, which would have rescued Captain James Kirk and Doctor Leonard McCoy from Qo'noS in 2293.
This starship and registry was not referenced in dialog. This vessel appeared in the plans for Operation Retrieve presented by Colonel West. Besides the USS Excelsior and the USS Springfield, the Eagle and five other starships were graphically represented by the outline of a movie era refit Template:ShipClass vessel.
From this, the Star Trek Encyclopedia lists the ship as a Constitution-class vessel.
The Andorians: Among the Clans by S. John Ross featured a listing of a Constitution-class USS Eagle with the registry NCC-956 listed in the Star Trek Encyclopedia and the chart seen the Federation President's office in Star Trek VI: The Undiscovered Country. In the Andorian language invented by Ross it was known as the USS Atlirith (an Andorian eagle).