ASTM_F_2317_-_F_2317M_-_10.pdf

Designation:F2317/F2317M10Standard Specification forDesign of Weight-Shift-Control Aircraft1This standard is issued under the fixed designation F2317/F2317M;the number immediately following the designation indicates the yearof 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.Scope1.1 This specification covers the minimum airworthinessstandards a manufacturer shall meet in the designing,testing,and labeling of weight-shift-control aircraft.1.2 This specification covers only weight-shift-control air-craft in which flight control systems do not use hinged surfacescontrolled by the pilot.NOTE1This section is intended to preclude hinged surfaces such astypically found on conventional airplanes such as rudders and elevators.Flexible sail surfaces typically found on weight-shift aircraft are notconsidered hinged surfaces for the purposes of this specification.1.3 Weight-shift-control aircraft means a powered aircraftwith a framed pivoting wing and a fuselage(trike carriage)controllable only in pitch and roll by the pilots ability tochange the aircrafts center of gravity with respect to the wing.Flight control of the aircraft depends on the wings ability toflexibly deform rather than the use of control surfaces.1.4 This specification is organized and numbered in accor-dance with the bylaws established for Committee F37.Themain sections are:Scope1Referenced Documents2Terminology3Flight Requirements4Structural Requirements5Design and Construction Requirements6Powerplant Requirements7Equipment Requirements8Operating Limitations9Keywords10AnnexAnnex A1AppendixAppendix X11.5 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory requirements prior to use.2.Referenced Documents2.1 ASTM Standards:2F2339 Practice for Design and Manufacture of Reciprocat-ing Spark Ignition Engines for Light Sport Aircraft2.2 Federal Aviation Regulations:3FAR-33 Airworthiness Standards:Aircraft EnginesFAR-35 Airworthiness Standards:Propellers2.3 Joint Aviation Requirements:4JAR-E EnginesJAR-P PropellersJAR-22 Sailplanes and Powered Sailplanes3.Terminology3.1 DefinitionsAircraft Weight:3.1.1 design maximum aircraft weight,naircraft designmaximum weight WMAXshall be the sum of WWING+WSUSP.3.1.2 design maximum trike carriage weight,ndesignmaximum trike carriage weight,Wsusp,shall be established sothat it is:(1)highest trike carriage weight at which compliancewith each applicable structural loading condition and eachapplicable flight requirement is shown,and(2)not less than theempty trike carriage weight,Wtkmt,plus a weight of occu-pant(s)of 86.0 kg 189.6 lb for a single-seat aircraft or 150 kg330.8 lb for a two-seat aircraft,plus the lesser of full usablefuel or fuel weight equal to 1-h burn at economical cruise atmaximum gross weight.3.1.3 trike carriage empty weight,Wtkmt,nall parts,components,and assemblies that comprise the trike carriageassembly or that are attached to the suspended trike in flight,1This specification is under the jurisdiction of ASTM Committee F37 on LightSport Aircraft and is the direct responsibility of Subcommittee F37.40 on WeightShift.Current edition approved Jan.1,2010.Published February 2010.Originallyapproved in 2005.Last previous edition approved in 2009 as F2317/F2317M 05(2009).DOI:10.1520/F2317_F2317M-10.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from Federal Aviation Administration,800 Independence Ave.,SW,Washington,DC 20591.4Available from Global Engineering Documents,15 Inverness Way,EastEnglewood,CO 80112-5704Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 including any wing attachment bolts,shall be included in thetrike carriage assembly empty weight,Wtkmt.These mustinclude the required minimum equipment,unusable fuel,maximum oil,and where appropriate,engine coolant andhydraulic fluid.Trike carriage empty weight,Wtkmt,shall berecorded in the Aircraft Operating Instructions(AOI).3.1.4 wing weight,Wwing,nall parts,components,andassemblies that comprise the wing assembly,or that areattached to the wing in flight,shall be included in the wingweight,Wwing.The wing weight,Wwing,sha