VSKYLABS RC B.2X Vulcan

4xTURBINE - 1:12 SCALE - CHALLENGING - REQUIRES DUAL-RATES/EXPO CONTROL MODES
SCALE FLIGHT - HIGH SPEED PASSES - ENERGY MANAGEMENT

Model data:

Type: Giant-Scale RC Model based on the Vulcan B2 Bomber
Scale: 1:12
Wingspan: 5.95 m (19.5 feet)
Weight: No-fuel: 220 lbs / 99.8 Kg 
Fuel: ~25 Liter / 44 lbs
Engine: 2 x JetCat P160 Class turbines (37.4 lbs / 16.96 kg per engine)
Fuel consumption: 460g/min (approx. 500ml/min) / 8.5 gal/h (full power, per engine).
Performance/Limitations: Maximum speed: exceeds 180 knots / 207 mph / 333 km/h (sea level, sustained full power straight and level). Vne: 160 knots / 184 mph / 296 km/h. Note: despite the massive all-up weight, the Vulcan's generates exceptional speed potential - the gap between what this model can do and what it should do is significant and must be respected. High-speed passes at approximately 150 knots are visually dramatic and entirely appropriate; pushing beyond that in aggressive low-altitude flybys at full throttle is not recommended due to structural limitations. At speed and low altitude this aircraft carries enormous kinetic energy and demands calm and planned inputs.

Channels:

  1. Throttle
  2. Rudder
  3. Elevator
  4. Ailerons
  5. Control modes (Full, Dual-Rates/Expo) - Mandatory for realistic flying.
  6. Gears
  7. Flaps
  8. Speed-Brakes
  9. Gear-Brakes

Pilot Notes:

General: The VB.2X is a huge and heavy model, and its sheer size works against instincts of pilots with limited or no experience in flying large models. Judging actual speed over the ground is difficult and requires gaining specific experience with this model. This becomes most critical on final as the aircraft will appear to be at an appropriate approach speed, and only as the runway threshold approaches it become apparent that the speed is too high for a comfortable touchdown. Do not let this catch you off guard. For this reason, it is highly recommended to dedicate your initial flights to practicing finals and go-arounds without touchdown. Build the visual references before committing to a full landing.

Controls: Dual rates and/or expo are mandatory due to the high-lift of the wing an the wide flight envelope that ranges from slow to high speed regimes. Inflight pitch trim (trim sliders in your RC transmitter) may be required for high-speed passes. Switch Dual rates/Expo off and set the trim sliders to zero for takeoff and landing, where full control authority and maximum responsiveness are required.

Energy Management: Due to its high size to weight ratio, wing loading is relatively low. The large wing area generates effective lift well into slow speed regime. This may add difficulties in losing altitude on final approach. It is recommended to deploy the speedbrakes and flaps on final and keep them deployed through to full stop. It will provide a more controllable sink rate and easier energy management.

Real world reference video:
*The following video shows a real-world reference for the model. It is provided for informational purposes only. It is not produced by or affiliated with VSKYLABS. All credits belong to the original content creators. Various design features and other characteristics may vary, when compared to the VSKYLABS model in X-Plane.



VSKYLABS RC Elements Vol. 1 media - X-Plane 12: