The bank angle required for a standard rate turn is given by the formula: $ Φ = \tan^-¹(\frac{3}{1091}v) $ where $v$ is the true airspeed of the aircraft in knots, and $Φ$ is the bank angle in degrees. This is derived from the [[Rate of Turn]] formula. The FAA and ICAO define a standard rate turn as 3° per second. # References - [[PHAK Front Matter](https://www.faa.gov/regulations_policies/handbooks_manuals/aviation/faa-h-8083-25c.pdf)]() - [[FAA-H-8083-15B, Instrument Flying Handbook](https://www.faa.gov/sites/faa.gov/files/regulations_policies/handbooks_manuals/aviation/FAA-H-8083-15B.pdf)]() - [[Pilot/Controller Glossary](https://www.faa.gov/air_traffic/publications/media/pcg_10-12-17.pdf)]() - [[Microsoft Word - Final.Doc 8168.Vol.01.6th Edition.alltext.en.docx](https://ffac.ch/wp-content/uploads/2020/11/ICAO-Doc-8168-Volume-I-Flight-Procedures.pdf)]()