This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:F3338-20 INTERNATIONAL Standard Specification for Design of Electric Propulsion Units for General Aviation Aircraft This standard is issued under the fixed designation F3338:the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon (e)indicates an editorial change since the last revision or reapproval. 1.Scope a means of pliance to their general aviation aircraft 1.1 This specification covers minimum requirements for the airworthiness regulations(hereinafter referred to as“the design of Electric Propulsion Units (EPU). Rules") refer to ASTM Committee F39 webpage (.ASTM.org/COMITTEE/F39.htm) which includes CAA 1.2 Distributed propulsion is not excluded;however addi- website links. tional r...