Large nontransport category airplanes: Landing limitations: Destination airports

This regulation sets landing weight limits for large nontransport category airplanes operating under Part 135. Before takeoff, you must ensure that your airplane's weight at destination (accounting for fuel burn) allows you to land and stop within 60% of the most suitable runway's effective length.

You must calculate this using whichever runway requires the lower weight limit: either the longest runway in calm winds, or the runway dictated by forecast winds (counting only half of any headwind benefit, but 150% of any tailwind penalty).

The regulation assumes a standard 50-foot obstacle clearance over the runway threshold at 1.3 times stall speed in landing configuration, normal piloting skill, and standard atmospheric conditions. This 60% requirement provides a significant safety margin beyond the demonstrated landing distance, accounting for real-world variables like braking efficiency, runway conditions, and approach variations.

*This is a plain-English summary for study only. The official 14 CFR text on this page is controlling — always read the current regulation and consult a CFI.*