Development History and Background

PMDG (Precision Manuals Development Group) has long been recognized as the gold standard in commercial flight simulation add-ons. The Boeing 737 NG3 continues this tradition, representing the culmination of years of research, pilot consultation, and technological development. Originally conceived for the Prepar3D platform, the aircraft was later adapted for Microsoft Flight Simulator, bringing its legendary systems depth to a new generation of simmers.

The NG3 designation indicates that this is not merely an update but a ground-up rebuild of PMDG's earlier 737NGX product. The development team scraped legacy code and started fresh, leveraging modern rendering pipelines and more powerful simulation engines. This rebuild allows for features such as more realistic wired electrical systems, individual circuit breaker modeling, and dynamic lighting that were simply impossible in earlier versions.

PMDG's dedication to accuracy is evident in their official product page, which details the extensive pilot feedback and real-world data incorporated into the simulation. The result is an aircraft that behaves, sounds, and feels remarkably close to its real-life counterpart.

Installation and Platform Compatibility

The PMDG 737 NG3 is available for both Prepar3D v4/v5 and Microsoft Flight Simulator (2020 and 2024). Installation is handled through the PMDG Operations Center, a standalone application that downloads and manages the aircraft files. The process is straightforward but requires an active internet connection and a valid purchased license from PMDG's online store. The Operations Center also manages liveries, updates, and configuration options.

A notable difference between the two platforms lies in performance. In Microsoft Flight Simulator, the NG3 benefits from the sim's native volumetric clouds and enhanced lighting, but it also places higher demands on the GPU and CPU. Many users report smoother frame rates in Prepar3D, especially with complex add-on airports and AI traffic. PMDG has released multiple Performance optimization patches for MSFS, and the current version runs acceptably on systems with at least 16 GB of RAM and a modern six-core processor.

Aircraft Systems Depth

Flight Management System (FMS)

At the heart of the NG3 experience is the Flight Management System. The PMDG FMS replicates the Collins Pro Line 4 system used in real 737s. Users can program complex routes, including SIDs, STARs, holds, and holds for missed approaches. The navigation database is updated regularly with AIRAC cycles from Navigraph. The FMC pages are meticulously recreated, from the LEGS and DEP/ARR pages to the PROG and ACARS functions. This depth allows for realistic airline operations, including step climbs, cost indexing, and VNAV profile management.

Electrical, Hydraulic, and Pneumatic Systems

The NG3 simulates the aircraft's electrical system in full detail, including a stand-alone battery, two engine-driven generators, an APU generator, and external power. Users can monitor voltage and load on the electrical power distribution panel. The hydraulic system includes normal and standby pumps, with realistic pressure readings that fluctuate based on engine RPM and actuator demands. Pneumatic systems handle bleed air for engine starts, cabin pressurization, and wing anti-ice. All these systems interact in real time, creating a cohesive and immersive operational experience.

Avionics and Displays

The glass cockpit features six display units: two primary flight displays (PFD), two navigation displays (ND), an engine indication and crew alerting system (EICAS) page, and a multifunction display. PMDG has programmed each display with realistic behavior, including failure modes, reversionary modes, and brightness adjustments. The synthetic vision system on the PFD, when enabled, adds terrain with contours and obstacles. The ND supports multiple modes including VOR, APP, MAP, PLAN, and weather radar overlay.

Flight Dynamics and Handling

PMDG has always invested heavily in flight dynamics, and the NG3 is no exception. The aerodynamic model accounts for ground effect, raked wingtips, control surface deflection, and engine thrust effects. The aircraft feels heavy on the controls during climb and cruise but becomes crisp during approach and landing. Stall characteristics are realistic, with a pronounced buffet before break. Crosswind landings require proper rudder correction, and the autobrake system responds precisely to selected settings. For an in-depth technical analysis of these dynamics, the AVSIM NG3 discussion forum contains detailed pilot impressions and comparison charts.

The flight model also accurately captures the effects of weight and balance. Loading fuel in the center tank versus the wing tanks changes handling characteristics, as does passenger boarding order. The flaps and slats deploy at realistic speeds, and the fly-by-wire system (actually a control feel computer) provides the appropriate resistance. A particularly impressive feature is the way hydraulic fluid warms up during taxi, gradually reducing control stiffness over the first few minutes of flight.

Visual and Audio Realism

3D Modeling and Textures

The external model is built from high-resolution photographs and engineering diagrams. Every rivet, panel line, and antenna is present. The cockpit is equally detailed, with functional knobs, switches, and circuit breakers. At night, dynamic lighting casts realistic shadows and illuminates the instrument faces with a soft amber glow. The pedestal, overhead panel, center console, and sidewalls all feature clickable zones for every button and lever. The cabin windows have animated shades, and the cockpit door opens to reveal a simple cabin or a custom configuration.

Sound Design

PMDG's sound engine samples real 737 cockpit recordings. The whine of the APU, the roar of the CFM56 engines during takeoff, the clunk of the landing gear locking up, and the subtle hum of the air conditioning packs are faithfully reproduced. The sound environment also changes based on the user's head position relative to the windows. Interior and exterior sound sets are included, and users can adjust volume levels for engines, cockpit alerts, and PA announcements. The sim also includes a functional cabin public address system that updates passengers with gate information, safety briefings, and flight progress.

Learning Curve and Documentation

The PMDG 737 NG3 is not a product for casual flyers. The included documentation totals over 500 pages, comprising a detailed introduction, FMC guide, systems operating manual, and tutorial flight. The tutorial takes the user from cold and dark startup to a full flight, including pushback, engine start, taxi, takeoff, cruise, descent, approach, and shutdown. Each step is accompanied by screenshots and explanations of the underlying logic.

For new users, the steep learning curve may be intimidating. However, PMDG provides a set of "Quick Start" keyboard shortcuts and a state-load function that lets users begin any phase of flight without going through the full start sequence. Online communities offer additional help, and many tutorial videos are available. The PMDG Community Forum is particularly helpful for troubleshooting specific issues.

Value Proposition and Pricing

The PMDG 737 NG3 is priced at approximately $99.99, placing it in the premium category for flight simulator add-ons. This price includes the base aircraft, multiple variant models (600, 700, 800, and 900ER), and a selection of liveries. Additional liveries can be purchased separately on third-party sites or created by users using the included paint kit.

While the price may seem high, it must be measured against the months of work required to produce such realistic systems. For a serious flight simmer building a home cockpit or pursuing online virtual airline operations, the NG3 is an indispensable tool. For those who simply want to occasionally fly a realistic jet, the iFly 737 Max or Captain Sim 737 might offer a more economical entry point, but they lack the depth of the PMDG product.

Comparison with Other 737 Add-ons

The flight simulation market offers several 737 products, each suited to different audiences. The iFly 737 is a strong competitor, featuring an intuitive interface and solid systems depth, though its textures and lighting are less polished than the NG3. Captain Sim's 737 provides a lower price but suffers from sporadic support and less accurate systems modeling. The freeware Zibo Mod for X-Plane is excellent but lacks official support and is not available for Microsoft Flight Simulator. In almost every category, the PMDG NG3 sets the benchmark for realism, precision, and completeness.

Pros and Cons

Pros:
  • Unrivaled systems depth, including fully modeled electrical, hydraulic, and pneumatic systems
  • Accurate flight dynamics with realistic weight, balance, and ground effect modeling
  • Stunning visual quality with dynamic lighting and high-resolution textures
  • Comprehensive documentation and tutorial for new pilots
  • Active developer support with periodic updates and bug fixes
  • Wide range of compatible liveries and community enhancements
Cons:
  • High purchase price compared to other 737 add-ons
  • Steep learning curve for beginners, requiring significant study
  • Performance in MSFS can be demanding on lower-end hardware
  • Some minor bugs persist from launch, though most have been addressed

Final Verdict

The PMDG Boeing 737 NG3 is the definitive add-on for anyone serious about commercial jet simulation. Its combination of meticulous systems modeling, authentic flight dynamics, and polished visuals create an experience that rivals full-motion simulators used in airline training. Yes, the price is high and the learning curve is steep, but for enthusiasts who value realism and immersion, the investment pays off in countless hours of satisfying flight. This is not a game; it is the closest most of us will ever come to flying a real Boeing 737.

For those ready to take the leap, the official PMDG website is the starting point for purchase, installation, and support. Also consider reading the FlightSim.com review for additional perspectives on long-term usability.