With the 757 being released soon, there are many features to look forward to. One of the most exciting ones is the new engine sounds. The developers have said that the engine sound used will most likely be the rb211 sound. With this sound being generated and released, it would be nice for this sound to be applied to the 767 and 744 because they both use the rb211. This would allow for the most possible realism in the shortest amount of time possible. Hope you vote for this!