SAE ARP991C covers the recommended lighting performance and design criteria for:
- a. Left Forward Navigation Position Lights (Red)
- b. Right Forward Navigation Position Lights (Green)
- c. Rear Navigation Position Lights (White)
- d. Anticollision Lights
- (1) Red Flashing Lights Top and Bottom Fuselage
- (2) White Flashing Strobe Lights Wing Tips and/or Tail
- (3) Red Flashing Beacon Light on Top of Vertical Tail
