The Delta 9 Launch Vehicleby Tommy on 2/07/2012
Lol. I’d go 3 by 3 for nine engines with the core too. If you can’t beat them, join them I say.
I’ve more or less decided to just go with the Falcon 9 Lite, basically a cluster capable Falcon 1 Heavy implemented in both hydrogen and methane. I’m thinking a straight 3 by 3 cluster of 25,000 to 30,000 lbf thrust engines, so I get a little extra boost (over the Falcon 1e) with the boosters. That way I can put a hydrogen upper stage on it. Or maybe even add some solids, lol.
The general idea is that the larger hydrogen stage gives you a fairly decent capsule diameter.
Disclaimer : I reserve my right to change my mind.
Update : Rocketdyne where are you?
Plan B – 2 meter Falcon 1Es with Merlin 1Ds.email@example.com