对于认证合格发动机和非认发动机的区别，Rotax官方给出解释如下：

Certified engines：The certified aircraft engine ROTAX 912 iSc Sport is tested as per aeronautical standards for safety and time between overhaul. It was developed to conform to the latest technological standards and rigorously tested.

认证合格的发动机：认证合格的飞机发动机Rotax iSc Sport按照航空标准进行了测试，以确保安全性和检修时间。发动机Rotax iSc Sport的研制符合最新技术标准并经过严格测试。

Non certified engines：The engine ROTAX 912 iS, 912 iS Sport is not certified. These engines have not received any aeronautical standards or regulatory safety or durability testing, and conform to no aircraft standards. These engines are for use in experimental,uncertificated aircraft and vehicles only in which an engine failure will not compromise safety.

非认证的发动机：Rotax912iS和912iS Sport发动机未经认证。这些发动机没有经过任何航空标准试验或法规的安全或耐久性试验。这些发动机只用在实验性和未经认证的飞机和交通工具中，发动机故障并不会危害安全。

准确来说，非认证的发动机是和经过认证的发动机等效的，都由BRP-Powertrain制造，使用的是相同的质量保证体系。另外认证是需要增加一大笔费用。

非认证的Rotax发动机有符合性申明，符合ASTM F2239。轻型运动飞机认证整机认证时FAA和CAAC都是接受符合性申明。

---新建通航公司相关阅读---

---Rotax 发动机相关阅读---