A new concept for flight to orbit is described in this paper. It involves mass addition to an ascending, air-breathing, hypersonic lifting vehicle. General laws for flight to orbit with mass addition are developed, and it is shown that payload capabilities are higher than even the most advanced rocket launchers. Hyperplanes are multipurpose, fully reusable aerospace vehicles. These vehicles are using air-breathing engines and can take-off from any conventional airport. They are multipurpose vehicles in the sense that they be used for passenger or freight transport as well as satellite launching. Detailed studies emerged a new concept for hydrogen-fuelled, horizontal take off, fully reusable, single stage hypersonic vehicle, called HYPERPLANE. Avatar, a mini-aerospace plane, design is a technology demonstrator for hypersonic transportation. It is a scaled down version of hyperplane.