Airspeed Indicator, Model: 6 FMS 422

• 80 mm (3 1/8")
• Range: 0 to 180 mph
• 510° needle swing
• zero at 12 o'clock

Application
Developed especially for gliding, the instrument shows airspeed on a 510° spiral scale.  Graduations for low and average speeds are greatly enlarged in order to permit speeds in the ranges of primary interest to be read accurately and with ease.
Technical Data
Black plastic housing, white scale on matt black background, see scale drawing at right for installation dimensions
Weight: 0.205 kg (7.2 oz)

**W-6421 (0 to 300 kph)  shown in photo

Note: Operating range markings are not included as standard.  Custom color operating range markings are available for an additional $40 with a 6 week lead-time. Or you can apply the range markings yourself using the Airspeed Operating Range Stickers.  The factory applied markings are much nicer than the stickers.
Installation and Maintenance Instructions
Speeds Indicated on Airspeed Indicators
Leakage Test