CS 29.1541 General CS 29.1543 Instrument markings: general CS 29.1545 Airspeed indicator CS 29.1547 Magnetic direction indicator CS 29.1549 Powerplant instruments CS 29.1551 Oil quantity indicator CS 29.1553 Fuel quantity indicator CS 29.1555 Control markings CS 29.1557 Miscellaneous markings and placards CS 29.1559 Limitations placard CS 29.1561 Safety equipment CS 29.1565 Tail rotor