Which of the following describes how you determine if a low visibility takeoff can be performed?

Determining if a low visibility takeoff can be performed primarily involves evaluating the Runway Visual Range (RVR) values. RVR provides crucial information about the visibility conditions at the runway, which directly impacts a pilot's ability to safely execute a takeoff. Regulatory and operational guidelines often stipulate specific RVR minimums that must be met to proceed with a low visibility takeoff.

In this context, relying on RVR values incorporates assessing the actual visibility conditions, which are vital for making an informed decision about the safety of the takeoff. This information is critical for both pilots and air traffic controllers to ensure compliance with safety regulations.

Other options, while potentially part of the overall decision-making process, do not focus specifically on the key metric needed for assessing low visibility takeoffs. Checking previous takeoff records may provide insights but does not directly inform current conditions. Consulting only with the flight crew may not encompass the necessary data regarding visibility, and following the aircraft operational handbook is important, yet it primarily offers guidance on equipment and procedures rather than current visibility metrics. Hence, focusing on RVR values is the most direct and critical factor in determining the feasibility of a low visibility takeoff.