A direct quote, which I answered.
quote:
2 When ships are marked obsolete in the ship listing they don't appear in the construction ship listing
You are saying they
do appear, and you want to get rid of them now, right?
In the ship designs window, "only show latest" should be on.
In a planetary window, "only latest" will apply to everything, facilities, units, ships, upgrades.
Be sure both of those options are checked. You can get at the planetary one through your empire options window, or through any construction queue.