Quote:
Originally Posted by kato13
Most modern civilian "jets" use turbofan engines which could be converted fusion as the propulsion comes mostly from the fans and not from heated exhaust. If you are ok with a 600 mph top speed fusion turbo fans should be fine.
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If you take away the fuel, what you have left is a ducted fan, not a jet - literally. And as odd as it may sound, that jet, even when dominated by fan thrust, changes everything. I started out in aerospace engineering, and the physics of fan propulsion says that ducted fans work best in a pusher configuration and at low speed, as at high speed duct drag dominates. There is a reason you don't really see ducted fan aircraft that don't have that jet running down the center.
And even if you could, why would Morrow want the added complexity? Are they really in that much of a hurry?