MD-11 Progress Update

Rotate has published new screenshots of its upcoming MD-11 for X-Plane 11.

The images showcase the status of the cockpit and the main displays. The developer explained: “All the main display units are operational but they are work in progress, so some elements are missing.”

The modelling and texturing of the flight deck is almost complete, but the “aft part of the cockpit still needs some more detail work.”

The McDonnell Douglas MD-11, currently in development by for X-Plane 11. Rotate plans to release both a passengers and cargo variants to a study-level standard they from version 1.0.”

Looking Back
During the year, Rotate has released several status updates on various aircraft subsystems.

Fuel System
All the fuel tanks are modelled with quantity, pressure and temperature for each is computed separately. This data is processed in the custom Fuel System Controller, where the logic for most of the sub-systems has been written to simulate system functions including fuel scheduling, crossfeed, CG management, ballast fuel management, anti-ice recirculation, tip transfer, fuel dump, and abnormal operation. Manual mode, failures and electrical dependencies are also simulated.

The following fuel system components have been independently simulated:

  • All fuel tanks, including separate outboard and inboard wing compartments
  • 18 fuel pumps
  • 16 valves
  • Five manifolds
  • Four fuel feed valves
  • Physical model for fuel flow and thermal behaviour
  • Automatic and manual modes
  • Abnormal operation.

Electrical System
To reflect the complexity of the MD-11, Rotate has modelled the systems with a component-oriented design. Each component in the electrical system simulates its state in terms of voltage, current and load. Abnormal function and failures are an integral part. This produces an authentic system simulation along with indications and alerts.

The electrical system logic replicates the source priority for No Break Power Transfer and Parallel Operation, as well as the Emergency Power Transfer, with functional battery, charger and air-driven generator. Dual Land mode and Smoke procedure are also simulated.

The following components have been simulated independently:

  • Detailed engine IDGs, APU, ADG and external power generators
  • 29 electrical buses
  • 32 relays
  • Six automatic circuit breakers
  • Separated AC/DC distribution with four transformer-rectifiers
  • Inverter and battery charger
  • All overhead controls are operative and functional
  • Automatic and Manual modes are simulated.

MD-11 Air System
All pneumatic sources have been modelled and all relevant manifolds, valves and ducts that serve the Air Conditioning, Ventilation, Heating, Cabin Pressure and Anti-Ice systems, are driven by the Environmental System Controller. This provides functions for automatic and manual modes of temperature control, pressurisation schedule for all flight phases, engine start, pneumatic isolation, and failure detection. Airflow, temperature and pressure are computed for every relevant component and compartment.

The following components of the air system are simulated:

  • Engines and APU bleed pressure regulating valves
  • Ground pneumatic sources
  • Three air system manifolds, CAC manifold and trim air manifold
  • Two system isolation valves
  • Six wing, tail and engines Anti-Ice valves and ducts
  • Three flow control valves
  • Two trim air pressure regulating valves
  • Three AC packs and ground AC pack
  • AC manifold
  • Seven ducts and outlets for all cockpit, cabin and cargo compartments
  • Outflow valve and ram air doors.

Rotate has previously showcased several external shots of the MD-11 wearing a UPS livery. No release date has been announced yet.