SpaceBird Reusable Shuttle Aerodynamic Concept plane is a kind of small Slace shuttle using retractable wing in order to decrease the area of heat shield bricks, making it safer and more efficient than space shuttle.

Video link:
https://m.bilibili.com/video/BV1QC411h7Kv

This design aims at decreasing the area of heat shield as much as it could while reentry the atmosphere. Heat shield bricks are not only heavy but also more dangerous if it had a hole while reentry.

Its primary wings fold up while reentry, it uses RCS, V-shaped tail and body flaps to control its attitude. Its V-Shaped tail could control its Pitch and Yaw, while its body flaps controls its Roll. After its speed slower than Mach 3 at 10000m altitude, its primary wing would retract and it uses its primary wings to land.

Its primary wings uses thick and low-speed airfoil in order to reduce its approach speed.
Primary wings 55 degrees sweepback for stability.
Because its upper wing surface does not Stand high pressure and high temperature, its upper wing surface could be made from Polymethyl methacrylate (PMMA) as a solar panel similar to the Soyuz spacecraft.
Its payload area is around its cockpit, its main fuselage is used to store rocket propellant.

It has a capability of recycable Serving as the second stage of Titan 2 rocket, delta rocket, Falcon 9 rocket.
Its space is similar with Gemini spacecraft.
Its LEO Performance is generally estimated to be no less than 2 tons of LEO capacity on the shoulder of a 200-ton first stage.

LEO Estimate: about 2 tons capacity, crew:2, similar with Gemini.
Could be launch on the shoulder of Titan 2, delta rocket, Falcon-9 rocket or any other 200-ton takeoff rockets.
TO Weight with propellant: about 40000-50000kg.
TO Weight with First stage: Depend on first stages.
Empty Weight: 6 tons estimated.

AG 2 to release drag parachute.