Estudiante

Designation: F2245 − 12c

Standard Specification for

Design and Performance of a Light Sport Airplane1
This standard is issued under the fixed designation F2245; 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 (´)indicates an editorial change since the last revision or reapproval.

1. Scope 1.1 This specification covers airworthiness requirements for the design of powered fixed wing light sport aircraft, an “airplane.” 1.2 This specification is applicable to the design of a light sport aircraft/airplane as defined by regulations and limited to VFR flight. 1.3 This standard does not purport to address all ofthe safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use. 2. Referenced Documents 2.1 ASTM Standards:2 F2316 Specification for Airframe Emergency Parachutes F2339 Practice for Design and Manufacture of Reciprocating SparkIgnition Engines for Light Sport Aircraft F2506 Specification for Design and Testing of Fixed-Pitch or Ground Adjustable Light Sport Aircraft Propellers F2538 Practice for Design and Manufacture of Reciprocating Compression Ignition Engines for Light Sport Aircraft F2564 Specification for Design and Performance of a Light Sport Glider F2746 Specification for Pilot’s Operating Handbook (POH) for LightSport Airplane 2.2 Federal Aviation Regulations: 3 14 CFR Part 33 Airworthiness Standards: Aircraft Engines 14 CFR Part 35 Airworthiness Standards: Propellers
1 This specification is under the jurisdiction of ASTM Committee F37 on Light Sport Aircraft and is the direct responsibility of Subcommittee F37.20 on Airplane. Current edition approved Nov. 1, 2012. Published November 2012. Originallyapproved in 2004. Last previous edition approved in 2012 as F2245 – 12b. DOI: 10.1520/F2245-12C. 2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on the ASTM website. 3 Available from Federal Aviation Administration (FAA), 800Independence Ave., SW, Washington, DC 20591, http://www.faa.gov or http://ecfr.gpoaccess.gov.

2.3 EASA Requirements: 4 CS-22 Sailplanes and Powered Sailplanes CS-E Engines CS-P Propellers 2.4 Other Standards: GAMA Specification No. 1 Specification for Pilot’s Operating Handbook5 3. Terminology 3.1 Definitions: 3.1.1 flaps—any movable high lift device. 3.1.2 maximum empty weight, WE (N)—largest emptyweight of the airplane, including all operational equipment that is installed in the airplane: weight of the airframe, powerplant, required equipment, optional and specific equipment, fixed ballast, full engine coolant and oil, hydraulic fluid, and the unusable fuel. Hence, the maximum empty weight equals maximum takeoff weight minus minimum useful load: WE = W − WU. 3.1.3 minimum useful load, WU(N)—where WU = W − WE. 3.1.4 night—hours between the end of evening civil twilight and the beginning of morning civil twilight. 3.1.4.1 Discussion—Civil twilight ends in the evening when the center of the sun’s disc is 6° below the horizon, and begins in the morning when the center of the sun’s disc is 6° below the horizon. 3.2 Abbreviations: 3.2.1 AR—aspect ratio 5 S 3.2.2 b—wing span (m) 3.2.3 c—chord(m) 3.2.4 CAS—calibrated air speed (m/s, kts) 3.2.5 CL—lift coefficient of the airplane 3.2.6 CD—drag coefficient of the airplane
4 Available from EASA European Aviation Safety Agency, Postfach 10 12 53, D-50452 Koeln, Germany, http://easa.europa.eu. 5 Available from the General Aviation Manufacturers Association, http:// www.gama.aero/.

b2

Copyright © ASTM International, 100 Barr...