340 Reverse
On the Airbus, reverser deployment occurs when either LGCIU senses L & R main gear 'on ground'. This occurs when the gear is not trailed and will occur when the sensor is detected as not being near, ( in proximity.) This would occur as soon as the in flight geometry of the landing gear is interrupted by the ground, i.e. back wheels in contact. Wheel speed is considered for ground spoiler extension and autobrake application only.