The Magee-class was a type of 23rd century Federation science vessel in use during the 2250s. One ship of this class, the USS Shran, participated in Battle of the Binary Stars with the Klingons in 2256. (DIS: "Battle at the Binary Stars")
The Magee-class breaks from the traditional Starfleet Primary hull / Secondary hull configuration, and instead incorporates everything into a compact form, consisting of a saucer, with two Nacelles housed in large cowlings that sweep back along the length of the ship. Each nacelle contains a Bussard collector in the front, and the warp field grille in the back.
Ships of the class
In the article "DISCOVERY's 'Battle of the Binary Stars' Armada Identified" by Ken Reilly at Trekcore.com, this class was "possibly named for Canadian pilot John Magee, Jr., author of famed aviation poem "High Flight" – most notably used by president Ronald Reagan when addressing the destruction of the space shuttle Challenger in 1986." 
Eaves early concept art and CGI models of this class were designated as the USS Hoover (NCC-2422), and later, the USS Aldrin (NCC-1166). (Star Trek: Discovery The Official Starships Collection issue 11, p. 10, Star Trek: The Art of John Eaves, p. 195)
The Magee-class appears in the 25th-century-set game Star Trek Online, as a cosmetic "skin" for the playable Shran-class starship.