安装 Steam						
					
				
				
									登录
											 | 
						语言
						
																																															繁體中文(繁体中文)
																													日本語(日语)
																													한국어(韩语)
																													ไทย(泰语)
																													български(保加利亚语)
																													Čeština(捷克语)
																													Dansk(丹麦语)
																													Deutsch(德语)
																													English(英语)
																													Español-España(西班牙语 - 西班牙)
																													Español - Latinoamérica(西班牙语 - 拉丁美洲)
																													Ελληνικά(希腊语)
																													Français(法语)
																													Italiano(意大利语)
																													Bahasa Indonesia(印度尼西亚语)
																													Magyar(匈牙利语)
																													Nederlands(荷兰语)
																													Norsk(挪威语)
																													Polski(波兰语)
																													Português(葡萄牙语 - 葡萄牙)
																													Português-Brasil(葡萄牙语 - 巴西)
																													Română(罗马尼亚语)
																													Русский(俄语)
																													Suomi(芬兰语)
																													Svenska(瑞典语)
																													Türkçe(土耳其语)
																													Tiếng Việt(越南语)
																													Українська(乌克兰语)
																									报告翻译问题
							
						
											






Anyways, ship quality is influenced by the quality of the shipyard. You say you built a ship with a double durability shipyard and got a ship with 180% quality, this is in fact intentional, as it does the same thing with the Vanilla ships with Vanilla Shipyards. It is how you get a ship to have more levels available. The higher the quality ship, the levels it can achieve.
I had built a AS War Galleon out of a Common AS Shipyard and my ship maxed out at Level 42 qith a 100% Quality rating. I am assuming that with a 200% quality, you can get 84 levels out of a ship, but I am honestly just now figuring this stuff out myself.
Hope I helped.