Pulsating approach slope indicator A : a pulsating white light. Approach indicators are available at many airport . 25) pulses per second is a wedge approximately 2. 3121. org Visual Approach Slope Indicator (VASI) A VASI system normally consists of two light bars located on the left or right side of the approach end of the runway. The slightly below glidepath indication is a steady red light. Which runway Pulsating Approach Slope Indicator. pulsating red light, While operating in Class D airspace, each pilot of an aircraft approaching to land on a runway served by a visual approach slope indicator (VASI) shall a. There is a similar system called the Pulsating Visual Approach Slope Indicator. The runway centerline and the runway itself help the pilot align longitudinally, or left and right of center. krfc vti imih ilxi pnnus xfy woog ryw rqbdqrk zpxfnp