The majority of persistent hiccups are caused by injury or irritation to either the vagus or phrenic nerve. The vagus and phrenic nerves control the movement of your diaphragm. These nerves may be affected by: irritation of your eardrum, which may be caused by a foreign object. throat irritation or soreness.
For flights to/from the US, most airlines operate on a 'two piece' system - you can have two pieces of luggage checked, each weighing up to about 70lbs. For flights in the rest of the world, most airlines operate on a weight system. Coach class passengers are limited to a maximum weight of 20kg/44lbs in total.
As of 2014, the FlyNano, an ultralight aircraft, is the lightest plane certified for flight. It has an empty weight of 70 kilograms, with a maximum takeoff weight of 200 kilograms. In contrast, the AN-225 cargo aircraft is the largest plane in operation. It has an empty weight of 285 metric tons and a maximum takeoff weight of 640 metric tons.