When we ride the airplane, we sit many type of seat. In the future when we ride the airplane then we can go to destination to stand on standing seat. It makes with more padding, firmer mountings, a saddle-style seat and floor-to-ceiling fittings while still providing really comfortable  for the passenger.

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Upright Airplane Seating Maximizes Space, Reduces Prices – But Will Travelers Buy It?

This is related with engineering because technology is involved.