The Cobra class cruiser was designed to supplement the Constitution class heavy cruisers of the mid-23d century. It was designed later and incorporated many improvements in spaceframe layout. The version shown below is the pre-Movie-era version. Click on the image for details about the type, and a look at the refit version.
--Baloo
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"We adjust to anything. That�s the good news, and that�s what keeps the bad news coming."
--James Lileks
Come Hither and Yawn...
But it's still cool!
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7 alarm clock: "Do not touch me."
Dilbert: "Then how do I turn you off?"
7: "Believe me, I am plenty turned off."