Here is a Giant plane i built. took me about 4 days to do it has a swimming pool, a few bathrooms, a lounge, 1st, 2nd, 3rd, and fourth class cabins, a shower area, a gym, 2 kitchens, and 4 nucular reactors and a bucnh of other stuff. for some reason i accidentally built it without the wheels touching the ground and mcedit didnt work trying to fix it. It is 170 blocks long and 171 blocks from wing tip to wing tip. Download and comment! Btw im not sure if the download works let me know if it  does or doesnt so i can try to fix it.