Title: Describe regulations related to instruments and equipment.
Course: Aircraft Pilot Training I (20053-I) > Section: Exploring Regulations

Description should include the following:

- Unless otherwise specified, the instrument and equipment requirements of this subpart apply to all operations under this part.
- Instruments and equipment required by §121.305 through 121.359 and 121.803 must be approved and installed in accordance with the airworthiness requirements applicable to them.
- Each airspeed indicator must be calibrated in knots, and each airspeed limitation and item of related information in the aircraft flight manual and pertinent placards must be expressed in knots.

PLT405