Fi4 Context

Market context

Fi4 is ACSL confined-space inspection drone for enclosed infrastructure such as sewers, ducts and narrow pipes, with carbon-fiber core and IP55 protection.

  • Target environment: Confined spaces, sewers, ducts, pipes and other enclosed industrial infrastructure.
  • Workflow context: Confined-space inspection, visual inspection of enclosed assets and safe data capture where human entry is costly or hazardous.
  • Customer context: Infrastructure inspection teams, industrial operators and asset management teams.
  • Deployment model: Commercial product for specialized confined-space inspection workflows.
  • Commercial maturity: Commercially available inspection UAV with dedicated confined-space design.
  • Adoption constraints: Specialized for pipe and duct inspection. Limited general-purpose outdoor utility.
  • Market position: Gives ACSL a specialized infrastructure-inspection product separate from its general outdoor UAV lineup.
  • Adjacent products: Dronut DD1, confined-space inspection UAVs

Specifications

  • Ingress Protection: IP55
  • Core Material: Carbon fiber
  • Bumper: replaceable foam; flotation
  • Propeller Layout: forward-biased layout for pipe-like spaces
  • Controller: Smart controller with dedicated app, real-time pipe condition display
  • Applications: Sewer and duct survey, pipe navigation, GPS-denied inspection, confined-space survey
  • Flight Time Minutes: ≈4 min max flight time
  • Speed Range: 3 m/s max flight speed
  • Dimensions: 610 mm length, 290 mm width, 145 mm body height, 220 mm camera-side height
  • Aircraft Weight: 2.4 kg including survey camera and battery

Comparable Systems

View Fi4 overview