What exactly is the difference between a B777-31H and B777-31H(ER)? Is ER the latest version of 777-31H?

  • 5
    $\begingroup$ ER stands for extended range, which means added tanks and reinforcing the rest of the craft to hold all the fuel $\endgroup$ Oct 27, 2014 at 11:06
  • $\begingroup$ and potentially weight savings elsewhere $\endgroup$
    – jwenting
    Oct 27, 2014 at 12:23

2 Answers 2


The 777-31H is a standard Boeing 777-300 manufactured for Emirates (customer code 1H).

The 777-31H(ER) is a Boeing 777-300ER (Extended Range) again for Emirates.

Compared to the standard 777-300, the 777-300ER has:

  • A longer range due to the extra fuel it can carry (145538 kg compared to 135880 kg for the -300 baseline)
  • A higher Operating Empty Weight (167829 kg compared to 159570 kg for the -300 baseline)
  • A higher Maximum Take-Off Weight (351535 kg compared to 299370 kg for the -300 baseline)
  • A higher maximum structural payload weight (69853 kg compared to 64960 kg for the -300 baseline)
  • A wider wingspan (64.80 compared to 60.93 m)
  • A different engine delivering more thrust

The Boeing 777-300ER is always equipped with General Electric GE90-115BL1 engines, while the baseline -300 can be ordered with four different engine models from General Electric, Pratt& Whitney or Rolls Royce. The Emirates Boeing 777-300 aircraft have the Rolls Royce RR Trent 892 engines installed. They deliver 415 kN of thrust, almost 100 kN less than the GE90-115BL1 engines.


B777-31H(ER) can fly further than B777-31H.

  • 4
    $\begingroup$ welcome to Aviation.se. While your answer is correct, it lacks detail, could you please edit your post to add more information? $\endgroup$
    – Federico
    Jun 5, 2016 at 11:48

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.