DCTA 14-X
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 (Portuguese: Projeto de Propulsão Hipersônica 14-X). The name is a reference to the 14-bis, of the Brazilian inventor and aviation pioneer Alberto Santos-Dumont.