A closed wing is a wing that actually has two main planes fusing at their ends, so there are no conventional wing tips. Closed wing designs include the annular wing (commonly known as cylinder or ring wing), joint wing, box wing, and air tip devices.

With the title of the ring wing, the Lockheed commercial transport would be 52 meters long with a wing circumference of 7.4 meters, the wing itself would be a low mid-length attachment before arched back 27 degrees to join the tail of the aircraft, the total height is substantial that reaches up to 23 meters.

Lockheed wonders if this concept could also be used for future fighter jets, but then they thought why not make it a little bigger, it's the 1980s and Lockheed needs a new plane to beat MD and Boeing for the Best Aircraft Builder trophy commercials of the world.

So enter our star aerospace engineer Rolo Smithers, you might have heard of him before as he’s the creation of the Lockheed platform plane that we’ve already covered.

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