the Daedalus-class is ment to be smaller then the NX-class. which i never got.
STARSHIP CLASS Daedalus-class 
Affiliation:
Federation
Starfleet
(formerly
United Earth Starfleet)
Type:
cruiser
Service period:
2140s to
2196
Dimensions
Length: 105
meters
Width: 25
meters
Height: 40
meters
Specifications
No. of decks: 7
Maximum speed:
warp 7 STARSHIP CLASS NX-class 
Affiliation:
United Earth Starfleet
Type:
cruiser
Service period:
22nd century
Dimensions
Length: 225
meters
Width: 136
meters
Height: 29
meters
Specifications
No. of decks: 7
Crew: 82
Maximum speed:
warp factor 5
Cruising speed:
warp factor 4
Armaments: 3 PC-10a
phase cannons; 3 FST mk III
spatial torpedo launchers
Defenses:
polarized hull plating
Notable systems: WE-5
warp engine; SBD
impulse drive
Auxiliary craft: 2
shuttlepods