The article specifically says: >All that momentum is then harnessed to catapult a payload into space at speeds one source said could be around 3,000 miles per

The article specifically says: >All that momentum is then harnessed to catapult a payload into space at speeds one source said could be around 3,000 miles per hour. So that's what I was working off of. Admittedly, it's unclear who that source is. And 8k is still less than half of LEO. And right, I'm familiar with orbital mechanics and would never turn down free dv, but you get ~90% of that even out of somewhere as far off the equator as CCAFS. The bigger benefit would be if you're looking to launch into a low inclination (equatorial) orbit you can avoid the dv required for the plane change, but that would work just as well out of CSG. The altitude itself would be the only advantage I could see over somewhere like CSG.