It is the strength of the runway rather than the length that restricts operations from Fuaʻamotu.
Even a fully laden Boeing 767-300ER on a flexible pavement B strength, such as at this airport, requires a Pavement Classification Number (PCN) of 59, therefore is not allowed to takeoff with full load.
The same can be said of a Boeing 747-400, which theoretically could take off and land at Fuaʻamotu length-wise, but needs a PCN of 66, and would therefore damage the runway severely in the process (A B747-400 weighs over twice as much as a B767-300ER).
It is the strength of the runway rather than the length that restricts operations from Fuaʻamotu. Even a fully laden Boeing 767-300ER on a flexible pavement B strength, such as at this airport, requires a Pavement Classification Number (PCN) of 59, therefore is not allowed to takeoff with full load. The same can be said of a Boeing 747-400, which theoretically could take off and land at Fuaʻamotu length-wise, but needs a PCN of 66, and would therefore damage the runway severely in the process (A B747-400 weighs over twice as much as a B767-300ER).
Fuaʻamotu International Airport