PHYSICS-DRIVEN - ADVANCED DEMONSTRATOR - NOTAR-TYPE CONFIGURATION - GLASS AVIONICS
The VSKYLABS 902X-NTR simulation add-on for X-Plane flight simulator is an independent VSKYLABS development effort which is not related nor affiliated with 'MD Helicopters' or any other company or entity.
MD Helicopters MD-902 Explorer (simulation reference)
Light twin-engine utility helicopter of U.S. origin, first flown on 18 December 1992. The type is distinguished by its NOTAR anti-torque system and is powered by two Pratt & Whitney Canada PW200-series engines. Typical quoted performance includes a cruise speed of 131 knots, range of 328 nautical miles, and maximum operating altitude of 14,000 feet.
Role: Light twin-engine utility helicopter
Manufacturer: MD Helicopters
Country of origin: United States
First flight: 18 December 1992
Configuration: NOTAR (No Tail Rotor) anti-torque system
Crew: 1-2
Passengers: Up to 6
Powerplant: Two Pratt & Whitney Canada PW207E turboshaft engines, rated at 477 kw (640 shp) each, derated for reliability and safety to: Take-off 410 kw (550 shp) Max Continuous Power 373 kw (500 shp).
Maximum cruise speed: 131 knots
Range: 328 nautical miles
Maximum operating altitude: 14,000 ft
Maximum gross weight: 6,500 lb internal / 6,900 lb external
SIMULATION ENGINEERING NOTES
The VSKYLABS 902X-NTR was developed as part of VSKYLABS' educational, experimental, and engineering initiatives. This project aims to deliver a highly engineered, physics-based simulation of a twin-turbine No Tail Rotor helicopter test-bed.
To create a plausible NTR helicopter simulation, VSKYLABS focused on the MD-902 as a general reference, leveraging its technical aspects and system architecture as a baseline for a typical twin-turbine No-Tail-Rotor helicopter design.
While the VSKYLABS 902X-NTR is inspired by and derived from the MD-902's real-world specifications, it is not an exact replica nor an official simulation of the MD-902.
In line with the project’s goals and inherent development constraints, the VSKYLABS 902X-NTR features several differences from the MD-902.
The project includes two separate variants:
- VSL 902X-NTR - Standard.
- VSL 902eX-NTR - Extended Range variant.
The Extended-Range variant includes two external fixed pressurized fuel tanks, extending range to up to ~800 NM.
PROJECT HIGHLIGHT
- VSKYLABS ‘Test-Pilot’ Project:
- A fully operational, physics based, No-Tail-Rotor helicopter simulation with functional main systems.
- Authentic Engine Control Modes:
- Operate engines in OFF, IDLE, FLY, and TRAIN modes (auto throttle mode applies in Early Access).
- Advanced, Physics-Based No-Tail-Rotor System:
- Dedicated NTR Fan Simulation: Dynamic thrust response.
- Tail-Boom Thrust Vectoring Nozzle.
- Coanda Effect Simulation: Dynamically modeled to reflect real-world behavior (takes over ~60% of the anti-torque forces in hover).
- VSCS (Vertical Stabilizers Control System): Yaw-damping stabilization in cruise.
- Cockpit Configuration:
- Fully featured LR G1000 with a custom digital annunciation panel.
- IIDS (Integrated Instrument Display System): digital cockpit for enhanced situational awareness (Simplified version).
- VSCS Indicators.
- Essential Analog Instruments: Airspeed, Altitude, VSI, Radar-Alt (with aural warning), and a clock.
- VSKYLABS ‘Digi-Slip’ LED Indicator for enhanced yaw monitoring.
- Flight Deck Enhancements:
- 3D HUD: Optimized for VR & 2D, with accurate velocity vector references.
- Avitab Compatibility: Integrated for additional functionality.
- Full VR Engineering:
- Designed for immersive experience.
- Ideal for beginners & experts:
- The 902X-NTR is easy to operate, has a straight forward engine start-up and engine-control system. It is docile and predictable, allowing beginner helicopter sim-pilots to fly and operate it with reasonable effort.
- Cockpit Builders Heaven:
- Assign all aircraft switches, knobs, and interactions via a dedicated X-Plane 12 assignment layer.
- Comprehensive Support:
- VSKYLABS Support Forums - Professional assistance for aircraft operation and X-Plane technical support.
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