VYOBHA
01/08
Multi-Layered Safety Architecture
VA-04 above a cloud field
Multi-Layered Safety Architecture

Engineered for absolute safety.

A fail-operational architecture combining mechanical redundancy, emergency recovery, and intelligent control augmentation — every layer designed so the next one rarely needs to act.

06
Safety Layers
Rotor Redundancy
04
Defence Tiers
I · Distributed Electric Propulsion

Six rotors, six chances to keep flying.

Each of the six rotors operates independently with its own motor controller. If one — or several — fail, the flight controller redistributes thrust dynamically to maintain stability and directional control.

  • Independent motor controllers per rotor
  • Dynamic thrust redistribution algorithms
  • No single failure causes loss of thrust
Fault-Tolerant Propulsion
Layer I · Live telemetry
VA-04 plan view showing the six independent rotor pods
Top profile · 6 rotors, 6 controllers
Rotors6 / 6 active
Redist. latency< 30 ms
Single pointNone
VA-04 · Reference plateRev. 04 / 26
II · Ballistic Parachute Recovery

A last layer that always opens.

A whole-aircraft ballistic parachute deploys automatically — or manually — within fractions of a second. It cuts descent velocity dramatically and stabilises orientation, giving survivability where conventional recovery has none.

  • Sub-second pyrotechnic deployment
  • Stabilised, level descent attitude
  • Manual or automatic activation
Whole-Aircraft Recovery
Layer II · Live telemetry
VA-04 above a cloud field — last-resort recovery envelope
BPRS · whole-aircraft canopy
Deploy time0.8 s
Descent V6.5 m/s
Canopy ⌀14 m
VA-04 · Reference plateRev. 04 / 26
III · Auxiliary Pusher Propulsion

A second engine, a second chance.

An independent pusher propulsor sits aft, dormant in normal flight. If primary propulsion is lost, it activates instantly — providing forward thrust for a controlled transition, glide, and safe landing trajectory.

  • Independent of main rotor system
  • Forward thrust for controlled glide
  • Enables safe landing trajectory
Backup Propulsion Source
Layer III · Live telemetry
VA-04 side profile in cruise — aft pusher position
Pusher · aft of main rotors
StatusStandby
Thrust3.4 kN
Glide ratio11 : 1
VA-04 · Reference plateRev. 04 / 26
IV · Ram Air Turbine Power

Power harvested from thin air.

Borrowed from commercial aviation: a ram-air turbine deploys automatically on total electrical failure, converting airflow into the power that keeps avionics, sensors, and flight controls alive long enough to land safely.

  • Auto-deploy on total electrical failure
  • Powers critical avionics and controls
  • No battery, no software dependency
Emergency Electrical Backup
Layer IV · Live telemetry
VA-04 in climb — RAT deployment regime
RAT · airflow-driven generator
Output2.4 kW
Deploy< 4 s
DependencyNone
VA-04 · Reference plateRev. 04 / 26
V · AI Flight Augmentation

An intelligence that watches everything.

An onboard AI continuously monitors every subsystem, isolating faults the moment they appear and predicting failures before they happen. In an emergency, it supports the pilot with autonomous decision-making — reducing workload precisely when it matters most.

  • Real-time fault detection & isolation
  • Predictive failure analysis from sensor data
  • Autonomous decision support in emergencies
Intelligent Health Management
Layer V · Live telemetry
Cabin interior — pilot displays and avionics
Avionics · live fault inference
Monitor rate1000 Hz
Fault horizon42 s
Confidence0.998
VA-04 · Reference plateRev. 04 / 26
VI · Layered Safety Philosophy

Defence, in four layers.

No single safeguard stands alone. Prevention catches faults early, tolerance absorbs the ones that slip through, mitigation softens the rest, and survivability waits — quietly — for the day none of the others were enough.

  • Prevention — AI monitoring & predictive diagnostics
  • Tolerance — multi-rotor distributed propulsion
  • Mitigation — auxiliary pusher propulsion
  • Survivability — RAT power & ballistic parachute
Defence-in-Depth Architecture
Layer VI · Live telemetry
VA-04 three-quarter view above cloud field
Defence-in-depth · four tiers
Tiers04
Overlap index2.7×
StateArmed
VA-04 · Reference plateRev. 04 / 26
VA-04 landing at an estate vertiport
— Continue —

The sky was never the limit.

Six layers. Four tiers of defence. Zero compromise. The architecture that makes the quietest part of every Vyobha flight the part you never have to think about.