Talk:AFOH/@comment-12271231-20131207010527/@comment-11135771-20131207045944

You have to buy a U-Boat or Soryu from the store and use the depth gauges rings from that, the normal ones don't work. When you buy the U-Boat or Soryu, select one of the depth gauge rings, then click the add part button, then click back. Next time you go into edit mode and click the add part button, it should have the depth gauge ring selected already even though they are normally not useable parts.