ASTM_F_3233_-_F_3233M_-_17.pdf

Designation:F3233/F3233M17Standard Specification forInstrumentation in Small Aircraft1This standard is issued under the fixed designation F3233/F3233M;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 international standards for theinstrumentation aspects of airworthiness and design for“small”aircraft.1.2 The applicant for a design approval must seek theindividual guidance of their respective CAA body concerningthe use of this specification as part of a certification plan.Forinformation on which CAA regulatory bodies have acceptedthis specification(in whole or in part)as a means of compli-ance to their Small Aircraft Airworthiness regulations(herein-after referred to as“the Rules”),refer to ASTM F44 webpage(www.ASTM.org/COMMITTEE/F44.htm)which includesCAA website links.1.3 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.1.4 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 limitations prior to use.2.Referenced Documents2.1 Following is a list of external standards referencethroughout this specification;the earliest revision acceptablefor use is indicated.In all cases later document revisions areacceptable if shown to be equivalent to the listed revision,or ifotherwise formally accepted by the governing civil aviationauthority;earlier revisions are not acceptable.2.2 ASTM Standards:2F3060 Terminology for AircraftF3061/F3061M Specification for Systems and Equipment inSmall AircraftF3082/F3082M Specification for Flight for GeneralAviationAeroplanesF3116/F3116M Specification for Design Loads and Condi-tionsF3117 Specification for Crew Interface in AircraftF3120/F3120M Specification for Ice Protection for GeneralAviation AircraftF3229/F3229M Practice for Static Pressure System Tests inSmall AircraftF3230 Practice for Safety Assessments of Systems andEquipment in Small Aircraft3.Terminology3.1 Terminology specific to this specification is providedbelow.For general terminology,refer to Terminology F3060.3.2 Definitions:3.2.1 aircraft type code,nan Aircraft Type Code(ATC)isdefined by considering both the technical considerations re-garding the design of the aircraft and the airworthiness levelestablished based upon risk-based criteria;the method ofdefining an ATC applicable to this specification is defined inSpecification F3061/F3061M.3.2.2 continued safe flight and landing,ncontinued safeflight and landing as applicable to this specification is definedin Specification F3061/F3061M.3.2.3 high speed,nan aircrafts performance level isconsidered high speed if VNEor VNOis greater than 463 km/h250 knots,or MMOis greater than M0.6.3.2.4 instrument,nthe term instrument includes devicesthat are physically contained in one unit or component,anddevices that are composed of two or more physically separateunits or components connected together(such as a remoteindicating gyroscopic direction indicator that includes a mag-netic sensing element,a gyroscopic unit,an amplifier,and anindicator connected together).3.2.5 low speed,nan aircrafts performance level is con-sidered low speed if VNEor VNOis less than or equal to 463km/h 250 knots,or MMOis less than or equal to M0.6.3.2.6 primary display,nprimary display refers to thedisplay of a parameter that is located such that the pilot looksat it first when wanting to view that parameter.1This specification is under the jurisdiction ofASTM Committee F44 on GeneralAviation Aircraft and is the direct responsibility of Subcommittee F44.50 onSystems and Equipment.Current edition approved Feb.15,2017.Published March 2017.DOI:10.1520/F3233_F3233M-17.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 4.InstrumentationNOTE1Table 1 provides correlation between various Airc