Giant catapult is to be first stage to the Solar System?

Each board needs a few people who support the rich and powerful and mainstream, as if they were a paragon of virtue, but that is not I.
S = 1/2at squared = 30 times 100 = 3000 meters = 3 kilometers of catapult length, if the average acceleration is 60 meters per second = 6.2 G and the time is 10 seconds. v= at = 600 meters per second = 2,160,000 meters per hour = 2160 kilometers per hour, so the end of the catapult needs to be at 5000 meters or higher altitude to keep air friction heating from becoming the major challenge. I think there are places in Equador, where the catapult can start at 20 degrees from vertical and end 15 degrees from vertical at about 6000 meters. The land should be cheap as most humans need a frequent sniff of 99% oxygen at these altitudes. Changing direction more than one degree the last kilometer also creates lots of engineering problems. Launch near the equator has some advantages for most missions, and the SSTO = single stage to orbit will only have 1/2 of the atmosphere to pass through at the end of the catapult. A world class jet airport is needed near the base of the catapult. Perhaps Michael Eisner could be persuaded to build EquaDisney with space as the major theme of the theme park, and airlines could allow a no extra cost layover for through passengers who wished to visit the theme park enroute to somewhere else. Cheap jet fuel would induce airlines to refuel at EquaDisney and airlines would have an interest in using the catapult for supersonic passenger aircraft at much less than 6.2 G of course. Neil