几句英语句子对比!1 He had been making planes since 1905 and this was

几句英语句子对比!
1 He had been making planes since 1905 and this was his latest model
2 The latest model of the plane which he had been making since 1905
他从1905年起便开始研制飞机,飞机是他制作的最新型号
3 He landed on the water againe for engine failed
4 His engine failed and he landed on the sea for the second time
因引擎故障第二次降落在海面上
1,2和3,4 的翻译是不是一个意思,如果不是那该怎么改（标准答案是后面一句子）