[SunkenCiv]

Thanks. Chapin2500's reply was helpful:

http://www.freerepublic.com/focus/f-chat/1673339/posts?page=13#13

[gate2wire]

"By the time work stopped on the ship, the Germany Navy had a submariner as its top naval officer– Admiral Karl Donitz– and all ship construction was turned over to building new U-Boats. The Graf Zeppelin stayed at her moorings in Stettin for the rest of the war never to see action."

Ok. Now I understand. Thanks everyone.