Prepar3d V4 Professional Plus 4.0.23.21468 Online

1. Product Overview

  • Full Name: Lockheed Martin Prepar3D v4 Professional Plus
  • Version Number: 4.0.23.21468
  • Release Date: Approximately late May 2017 (initial v4.0 release cycle)
  • Type: Professional flight simulation platform
  • License: Professional Plus (highest tier)

This is the initial release version of Prepar3D v4 (the first 64-bit generation), not an update or hotfix. The build number 21468 identifies this specific compilation.

The 64-Bit Revolution: Why 4.0.23.21468 Changed Everything

Prior to v4, flight simulators were cursed by the Virtual Address Space (VAS) limit. FSX and P3D v3 would crash to desktop (CTD) when they exceeded 3.2 GB of RAM usage. With Prepar3D v4 Professional Plus 4.0.23.21468, that ceiling was obliterated.

In practical terms, this means:

  • Infinite AI Traffic: You can run 100% real-world airline schedules without crashing.
  • Orthophoto Scenery: You can load terabytes of high-resolution satellite imagery.
  • Complex Airports: KLAX, EGLL, or EHAM can be rendered in full 4K texture detail simultaneously with high-fidelity aircraft.

For the Professional Plus user operating a $50,000 simulator rig with 4K projectors, the 64-bit transition was the difference between a training session failing and a successful mission.

2. Weather Radar Integration

While later builds added volumetric fog improvements, v4.0.23.21468 featured a highly stable weather radar interface. Third-party developers like REX and Active Sky reported that the SDK in this specific build was the easiest to integrate with for "real-time" wind shear and microburst simulation. Prepar3D v4 Professional Plus 4.0.23.21468

2. Edition Specifics: Professional Plus

The "Professional Plus" edition includes everything from the standard Professional edition plus these exclusive features:

  • Weapon Systems: Ability to create, attach, and simulate weapon objects (missiles, bombs, rockets) with damage effects.
  • Tactical Visuals: Radar displays, night vision goggles (NVG), and forward-looking infrared (FLIR) simulation.
  • Multi-channel Support: Allows multiple networked PCs to drive different views (e.g., one for cockpit instruments, one for out-the-window visuals) without per-seat licensing.
  • Object Manipulation: Advanced tools to move, attach, and detach simulation objects in real-time.

The Context: The 64-Bit Revolution

To review build 4.0.23.21468, one must understand the state of the industry when it launched (mid-2017). Before this version, flight simulators were shackled by 32-bit architecture, limited to utilizing only 4GB of Virtual Address Space (VAS). This meant "Out of Memory" (OOM) crashes were a constant threat when running high-quality add-ons. Full Name: Lockheed Martin Prepar3D v4 Professional Plus

Prepar3D v4 was the first major simulator to move to 64-bit, effectively removing the memory ceiling. This alone changed the hobby forever.

4. File & System Details

  • Executable: Prepar3D.exe
  • File Size (exe): Approximately 55–60 MB (varies slightly)
  • Digital Signature: Lockheed Martin Corporation
  • Required OS: Windows 7 SP1 (64-bit), Windows 8.1 (64-bit), Windows 10 (64-bit) – early Creators Update or earlier
  • Minimum RAM (stated): 4 GB (but 8+ GB strongly advised due to 64-bit)
  • VRAM Recommendation: 4+ GB (due to large texture loads)

The "Professional Plus" License

It is important to note the license distinction. Prepar3D is not a game; it is a training platform. This is the initial release version of Prepar3D

  • Professional Plus: This is the highest tier license offered by Lockheed Martin. Unlike the Academic or Professional licenses, the Pro Plus license allows for the use of the software in flight training devices (loggable flight time) and unlocks specific features intended for cockpit builders and instructor stations.
  • Note for consumers: Unless you are building a certified training device or an advanced instructor station, the Professional Plus license offers no visual or performance benefits over the standard Professional license for the average user.

6. Operational Notes for This Specific Build

  • No SDK version mismatch yet – this is the baseline v4.0 SDK (4.0.23.21468 as well).
  • Default aircraft: Includes F-16A (Professional Plus exclusive weapons-ready variant), F-35A, F-22, P-38, F-86, Extra 300S, Mooney Bravo, Robinson R22, and more.
  • SimDirector: Present but less stable than v4.4+; scenario saving sometimes corrupts.
  • Performance: Slightly lower FPS than v4.3+ due to less optimized dynamic lighting shaders.