Research on airworthiness requirements of takeoff speeds for seaplane

Specific airworthiness requirements need to be established for the type certification of seaplane according to its design and operation characteristics. Based on the dynamics characteristics of seaplane,the takeoff procedure and phases were analyzed,corresponding takeoff characteristic speeds were defined. The safety limitation was analyzed and ascertained. By referring to the safety objective and philosophy of the airworthiness requirements of land airplane,the airworthiness requirements for seaplane takeoff speeds were established,the key issues of corresponding compliance demonstration were discussed also.