(And for users who don't use mods, here's the STS-1 V4 Un-Modded Version )

STS-1 Space Shuttle Columbia: America's First Space Shuttle (V4)

Introducing the first example of the future fleet of the newly reworked Seraku Space Shuttles for Juno New Origins. Newly-reworked from the ground up, now better than ever.

The first to roll out on this release is STS-1: America's First Space Shuttle. OV-102 Columbia. Now even better than ever this time of year!! Rolling out in light of the 43rd Anniversary of Shuttle Columbia's Maiden Flight on STS-1 in April 12, 1981.

History ("The Real Deal")

STS-1 (Space Transportation System-1) was the first orbital spaceflight of NASA's Space Shuttle program. The first orbiter, Columbia, launched on April 12, 1981, and returned on April 14, 1981, 54.5 hours later, having orbited the Earth 37 times. Columbia carried a crew of two—mission commander John W. Young and pilot Robert L. Crippen. It was the first American crewed space flight since the Apollo–Soyuz Test Project (ASTP) in 1975. STS-1 was also the maiden test flight of a new American spacecraft to carry a crew, though it was preceded by atmospheric testing (ALT) of the orbiter and ground testing of the Space Shuttle system.

The launch occurred on the 20th anniversary of Vostok 1, the first human spaceflight, performed by Yuri Gagarin for the USSR. This was a coincidence rather than a celebration of the anniversary; a technical problem had prevented STS-1 from launching two days earlier, as was planned.

New Features!

-Simplistically detailed External Tank and SRB Stack
-Realistic Control Surfaces (remapped as stage activation after reentry instead of being in Action group)
-New Vertical Stabilizer derived from the AASA Shuttle Orbiter
-Payload Bay Doors improved with more IRL opening angles
-New Body Flap Trail made by me
-New OMS Fuel Dump Valve parts made by KirRu

Instructions to prep the shuttle before launch.
-Use Slider 1 and Staging to retract the "beanie" cap. Slide it down 1 at -80%.

-Use Slider 1 and AG7 to retract the crew access arm. Slide it down 1 at -80% as well.

Shuttle was based from the Discovery Space Shuttle Ver2.1 Shuttle Craft

Special Thanks to:
-KirRu for the new OMS Fuel Dump Valve parts
-Zakithenoob and Soyuzfairings500 for making the detailed STS-1 ET and SRB Stack and tuning/tweaking on the SRB and Shuttle engine data so they can be both for RSS or Stock Systems.

Required Prerequisites (For PC players): MarioG's Modular Launch Pads Mod

Credits:
-LockSource for the Shuttle Launch Pad and Misc Shuttle Payload parts.
-MisatoKatsuragi for the Vertical Stabilizer
-And Seraku for the original shuttle craft.