Flight
Explore the platform, payload and constraints behind a six-motor defence UAV.
Read the hexacopter case studyEngineering portfolio
Engineering work across defence, marine, unmanned and robotic systems.
Defence electronics, naval cable assemblies, unmanned aerial platforms, data acquisition, robotics and custom mechanical systems — new development, reverse engineering, integration and testing against a written requirement.
Illustrative model, drawn to explain the story on this page. It is not a CAD model, a production design or a description of internal construction.
Field notes
Follow a system into the field.
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The platform
Six motors, chosen for payload capability and redundancy over a quadcopter layout.
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The engineering
Structure, power and control as one aircraft. The cover lifts to show where the avionics sit.
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The evidence
Figures documented on the ARDE hexacopter case study, with the full write-up one link away.
06motors
10 kgmaximum take-off weight
40 minflight endurance, up to
2 kmoperating range, approximately
Continue into the work
Naval hardware
See how existing parts become drawings, manufacturable components and assemblies.
Explore the naval hardware projectRobotics
Mechanical motion, control and operator feedback working together.
Explore the robotic armAbout this portfolio
Each project began with a stated requirement.
Restore an unreliable airborne data-logging system. Develop a payload-capable UAV for defence trials. Recover manufacturing information from an existing assembly. The brief came first; the engineering followed from it.
The work spans defence and naval systems, UAV platforms and airborne instrumentation, robotics and electromechanical systems, and mechanical design with manufacturing documentation. Some customers are named with permission; where they are not, the work is described without identifying them.
Selected work
Thirteen projects, grouped by discipline.
Each entry links to a fuller account of the requirement, the scope of the work and what was delivered.
Defence, naval and instrumentation systems
Work involving defence trials, naval equipment, airborne instrumentation, indigenous replacement development and engineering documentation for demanding operating environments.
Cable assemblies
Submarine and torpedo cable assembly
Flask and turbine cable assemblies for submarine and torpedo systems were an imported dependency. Vebix reverse-engineered the hardware and produced an indigenous design suited to Indian manufacturing, covering CAD modelling, material sourcing and precision assembly planning. Quality checks included pressure testing, insulation-resistance testing and durability cycling.
Application Submarine and torpedo systemsQualification Pressure, insulation resistance, durability cyclingView project →Data acquisition
Indian Navy quadcopter data-logger restoration
An existing quadcopter and its integrated electromagnetic data logger were received for repair, with GNSS connectivity, ground-station communication and time synchronisation all unreliable. Vebix analysed the system, reconfigured it and tested the result, stabilising positioning and correcting module timing. The platform returned to operational data collection.
Customer Indian NavyOutcome Restored to operational data collectionView project →Defence UAV
ARDE hexacopter for fuze-height simulation
A hexacopter developed for defence-related fuze-height simulation, with six motors chosen for payload capability and redundancy over a quadcopter layout. It was designed for 10 kg maximum take-off weight, endurance up to 40 minutes and an operating range of approximately 2 km, with autonomous waypoint navigation, altitude hold, return-to-home and two-way encrypted communication.
Maximum take-off weight 10 kgEndurance Up to 40 minutesOperating range Approximately 2 kmView project →Data acquisition
UAV thermal and inertial data acquisition
Airborne instrumentation logging RTD and thermocouple channels alongside IMU, pressure and temperature sensing, with a graphical interface for visualising and reviewing the collected data. The design supports configurable sampling up to 500 samples per second, operation down to −40 °C and a mass below 100 g.
Sensors RTD, thermocouple, IMU, pressureSampling rate Up to 500 samples per secondOperating temperature Down to -40 °CView project →Cable assemblies
Indian Navy electrical and fibre-optic cable hardware
Cable casings, flanges and couplings on a marine communication system had no manufacturing documentation. Vebix analysed the physical parts to recover their structural design, sealing method and material choices, then produced detailed measurements, CAD models and technical drawings prepared to support manufacturing and integration.
Application Marine communication systemsDeliverables Measurements, CAD models, technical drawingsView project →UAV and autonomous platforms
Airframe, propulsion, navigation, telemetry and payload integration work across multirotor platforms developed for different endurance, stability and manoeuvrability requirements.
UAV design
Surveillance quadcopter with live video
A quadcopter built for real-time aerial monitoring and inspection, combining GPS position tracking and waypoint navigation with an FPV camera streaming live video to the ground station. The airframe was balanced about its centre of gravity, then tested for stability, control response, transmission quality, interference, latency and vibration.
Navigation GPS position tracking and waypointsPayload FPV camera with live downlinkView project →UAV design
7-inch UAV frame
A 7-inch-class quadcopter frame with an enclosed fuselage protecting the flight controller, power-distribution board and wiring. X-configuration arms were adopted for stability, and the design was refined iteratively after testing to balance durability against airflow around the enclosed electronics.
Class 7-inch quadcopterLayout X-configuration arms, enclosed fuselageView project →UAV design
Comparative 5-inch and 7-inch UAV development
Two multirotor classes developed side by side to make the trade between agility and endurance measurable rather than theoretical. The 5-inch platform was tuned for responsiveness, the 7-inch for efficiency, endurance and payload stability. Propulsion matching and centre-of-gravity optimisation preceded flight-time, responsiveness and stability testing.
Classes 5-inch and 7-inch multirotorFocus Agility against endurance and payloadView project →Robotics and mechanical systems
Mechanical, electromechanical and control-system projects covering kinematic design, mobile manipulation, assistive robotics, custom tooling and battery-powered mechanisms.
Robotics
6-DoF robotic arm on a mobile platform
A six-degree-of-freedom arm mounted on a mobile platform and commanded as one system, so the arm and the vehicle could be operated together. A MATLAB App Designer interface gave the operator real-time joint control, with individual joint angles adjustable while the result was observed.
Degrees of freedom SixControl interface MATLAB App DesignerView project →Robotics
6-axis industrial robotic arm
Mechanical design of a six-axis arm for controlled industrial motion, resolving joint torque, payload and reach against what could realistically be manufactured and sourced. The work covered servo motors, encoders and control circuitry, structural locking mechanisms, and the fabrication and procurement of precision components.
Axes SixScope Design, fabrication and procurementView project →Robotics
Upper-limb assistive exoskeleton control development
Ongoing development of the control framework for an upper-limb assistive exoskeleton. Joint-motion commands are issued from MATLAB and validated through kinematic and control simulation with real-time visualisation. Hardware integration and sensor-based control, including possible EMG input, are identified as future work.
Status OngoingValidation MATLAB kinematic and control simulationView project →Mechanical design
Manufacturing documentation for custom tooling
High-fidelity 3D models and manufacturing drawings for custom tools and components, prepared so a vendor could quote and manufacture without a conversation for every dimension. Vebix also coordinated vendor RFQs, aligning raw material, fabrication and delivery. The scope was design and documentation rather than manufacture.
Deliverables 3D models, manufacturing drawings, RFQ packagesView project →Mechanical design
Battery-operated automatic trolley
An automated battery-powered trolley required to carry a real load across uneven outdoor ground, which made the chassis a structural problem as much as a control one. Vebix designed the chassis, procured materials, coordinated mechanical and electrical integration, and carried the build through assembly.
Scope Chassis design, procurement, assemblyView project →In development
What we are building towards.
Alongside the projects above, Vebix is developing the engineering foundations for more capable autonomous platforms. These are development directions rather than completed or fielded systems.
Next step
Tell us what you
are building.
Defence electronics, unmanned platforms, data acquisition, cable assemblies, reverse engineering or multidisciplinary integration — send the requirement and we will tell you what it takes.