Hoovy123

Thanks for the help everybody. I replaced the one turbojet with 2 turbojets, one on each side. I also replaced the 2 LV909s with an aerospike and made the top layer of wings swept wings. It actually accelerated pretty fast while gaining altitude and made it into orbit with the help of the aerospike, though it had to deorbit with RCS since it ran out of fuel.

I am getting the hang of building and flying atmospheric aircraft, but I have trouble with SSTOs. I follow the ascent profile that nearly everyone does, I pitch up to 40 degrees and when I'm at about 10 km, I smooth out to 10 or 15 degrees. The problem is when I'm gaining speed while preparing to switch to rockets, I lose altitude. I pitch my nose up to prevent this, and then I'm either losing speed or gaining speed at a really slow rate. What can I do to gain speed quickly without losing altitude? My plane: