The PAPI | Precision Approach Path Indicator (PAPI) Glide Slope Indicator Embroidered T-Shirt

Glide slope indicator lights, commonly found on the sides of runways, are crucial for providing visual descent guidance to pilots during landing. These lights, typically part of a Precision Approach Path Indicator (PAPI) system, display red and white lights to signal whether the aircraft is above, on, or below the optimal glide path. When a pilot sees two white and two red lights, they are on the correct glide slope; more red lights indicate being too low, while more white lights mean too high. This system has significantly contributed to aviation safety, especially during poor visibility conditions. Pilots often use the mnemonic "Red over white, you're all right; red over red, you're dead; white over white, you're out of sight" to remember the correct approach path. • 100% ring-spun cotton • Fabric weight: 6.1 oz/yd² (206.8 g/m²) • Garment-dyed • Relaxed fit • 7/8″ double-needle topstitched collar • Twill-taped neck and shoulders for extra durability • Double-needle armhole, sleeve,