Please read :
The suborbital shuttle has finished the refueling. To take your trip press 1 and full throttle.

You want to pull on the stick on the runway, you'll take off around 500mph directly in the sky.

Rocket fuel burns fast, you'll soon have to glide back to the runway but watch out: This thing flies like a brick as some old space cowboys used to say, stall and max speed are not far away...

Feel free to add VTOL engines to the trucks (this thing can go a lot faster!!!) and fuel in the wings of the truck. You even have a built in improvment for strongers wings, just remove the tiny wings at the rear and replace the control surface wings.

All the crdit goes to CaesarSizer for the truck! And his have an articulated trailer!

https://simpleplanes.com/a/76H69m/Flyingish-Semi-Truck