I forgot to mention that my brother Dick and I were able to visit the Salem in Quincy MA during the Mystic model ship meeting. A little hard to find the parking lot, but well worth the effort. There is a terrific US Navy training film about the 8"/55 Rapid Fire Gun & Turret (10 rounds/minute per gun) that you can find on youtube. The ship could put 90 rounds in the air before the first one reached its target!