{"data":{"id":"us/14-cfr-25.1303","jurisdiction":"us","citation":"14 CFR 25.1303","heading":"Flight and navigation instruments.","body":"(a) The following flight and navigation instruments must be installed so that the instrument is visible from each pilot station:\n(1) A free air temperature indicator or an air-temperature indicator which provides indications that are convertible to free-air temperature.\n(2) A clock displaying hours, minutes, and seconds with a sweep-second pointer or digital presentation.\n(3) A direction indicator (nonstabilized magnetic compass).\n(b) The following flight and navigation instruments must be installed at each pilot station:\n(1) An airspeed indicator. If airspeed limitations vary with altitude, the indicator must have a maximum allowable airspeed indicator showing the variation of VMO with altitude.\n(2) An altimeter (sensitive).\n(3) A rate-of-climb indicator (vertical speed).\n(4) A gyroscopic rate-of-turn indicator combined with an integral slip-skid indicator (turn-and-bank indicator) except that only a slip-skid indicator is required on large airplanes with a third attitude instrument system useable through flight attitudes of 360° of pitch and roll and installed in accordance with § 121.305(k) of this title.\n(5) A bank and pitch indicator (gyroscopically stabilized).\n(6) A direction indicator (gyroscopically stabilized, magnetic or nonmagnetic).\n(c) The following flight and navigation instruments are required as prescribed in this paragraph:\n(1) A speed warning device is required for turbine engine powered airplanes and for airplanes with VMO/MMO greater than 0.8 VDF/MDF or 0.8 V D/MD. The speed warning device must give effective aural warning (differing distinctively from aural warnings used for other purposes) to the pilots, whenever the speed exceeds VMO plus 6 knots or MMO + 0.01. The upper limit of the production tolerance for the warning device may not exceed the prescribed warning speed.\n(2) A machmeter is required at each pilot station for airplanes with compressibility limitations not otherwise indicated to the pilot by the airspeed indicating system required under paragraph (b)(1) of this section.","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—AIRCRAFT","PART 25—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES","Subpart F—Equipment"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-14.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:20Z","sha256":"b21f5812e0f8f79bc716c9300d8243521f16a3ea4debac54d02ffa954692a4d8","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-25.1302","next":"us/14-cfr-25.1305"},"notice":"GroundRules: Original legal text. Not legal advice."}