A biplane.
An airplane with 2 sets of wings is known as a biplane.
A bi-wing
a biplane
Bi-plane
a bi-planeA plane with two set of wings is a biplane.
triplane
A bi-wing.
two sets of wings
An airplane with two wings on either side is called a biplane.
Many of her early aircraft were biplanes ( Two sets of wings) which were very popular in the 1920's. Her Lockheed Vega 5, "Little Red Bus" was her first monoplane.
ladybugs have two sets of wings