L-1011 General Aircraft Characteristics: Approach Visibility at 50 Feet (25-33)

In an approach configuration, at 50 feet altitude, 334 feet of the ground will be obscured by the nose of the aircraft. Therefore, in a Category IIIA landing, with an RVR of 700 feet only 366 feet of the runway would be visible in front of the aircraft.

The use of direct lift control (DLC) during the approach will maintain a relative constant deck angle. Therefore, the visibility range will also remain quite constant.