The shallower your incline is, the more air you have to fight through post-launch to get to orbit, during which you’re losing velocity. And to get into low-earth orbit you have to reach 28000 kph (17000 mph) because it’s not so much about going up as it is about going really fast.
So you need to leave the end of the gun going fast enough to lose speed to air resistance and still reach and maintain orbit. I haven’t attempted the math, but it seems like your vehicle would burst into flame going that speed in the atmosphere.
You still haven’t accounted for how an orbital insertion would work. You have to reach orbital speeds in the correct direction which requires a directional burn not possible from the ground.
The shallower your incline is, the more air you have to fight through post-launch to get to orbit, during which you’re losing velocity. And to get into low-earth orbit you have to reach 28000 kph (17000 mph) because it’s not so much about going up as it is about going really fast.
So you need to leave the end of the gun going fast enough to lose speed to air resistance and still reach and maintain orbit. I haven’t attempted the math, but it seems like your vehicle would burst into flame going that speed in the atmosphere.
You still haven’t accounted for how an orbital insertion would work. You have to reach orbital speeds in the correct direction which requires a directional burn not possible from the ground.