The 14-X is a Brazilian scramjet engine in development by the Aerothermodynamics and Hypersonics Laboratory Henry T. Nagamatsu of the Institute of Advanced Studies (IEAv) of the Department of Aerospace Science and Technology as part of the PropHiper. The name is a reference to the 14-bis, of the Brazilian inventor and aviation pioneer Alberto Santos-Dumont.

The Alcântara Space Center, former known as Alcântara Launch Center is a space center and launching facility of the Brazilian Space Agency in the city of Alcântara, located on Brazil's northern Atlantic coast, in the state of Maranhão. It is operated by the Brazilian Air Force. The CEA is the closest launching base to the equator. This gives the launch site a significant advantage in launching geosynchronous satellites, an attribute shared by the Guiana Space Centre.