The world's largest aeroplane named Roc, owned by Stratolaunch made its maiden test flight over Mojave Desert in California, United States. It is designed to carry into space and drop rocket that will in turn, ignite to deploy satellites. It has world-record wingspan of 385 feet (117 meters).
Its launch architectures differ from traditional vertically launched rockets as this plane can carry rocket above densest part of atmosphere, before being released to launch to space. The advantage of such system is that it can take off from any runway that is long enough to accommodate plane, fly around bad weather if need be and launch satellite into any orbital inclination. This lowers cost needed to escape Earth’s atmosphere by utilizing less costly jet fuel and reusable carrier aircraft. It also offers more flexibility for launch inclinations than fixed launch pads.