Winner of Pennant Challenge: RM1 (SS) (ret)

The Winner is RM1(SS) (ret) Congratulations!
You are one of Molten Eagle's Honorary Naval Historians for 2006, joining MT1(SS); and Submandave, winner of 2005's contest .

His correct answers:
Submarine Operating in Area. RM1 (SS) (ret) gave a correct link and also named the correct material -metal. He went on to suppose that this was so they could just leave it in place when they submerged, and thus have it displayed the moment they broke the surface) .

No doubt he is correct on all counts. Vintage photos do show that the flag was removed when subs moored in port. Read more about it HERE.