The Falcon 9 v1.1 will switch to an 8 engines circle with another in the middle layout (as well as using the more powerful Merlin 1D engines). The v1.1 is expec

The Falcon 9 v1.1 will switch to an 8 engines circle with another in the middle layout (as well as using the more powerful Merlin 1D engines). The v1.1 is expected to replace the current v1.0 next year.