An air starter unit (ASU) provides the high-volume compressed air flow required to spin up a turbine engine to ignition speed when the aircraft's own auxiliary power unit is unserviceable, unavailable, or prohibited by noise or emission regulations. The EA-ASU is ElectroAir's full-size ASU, trailer-mounted and towable by standard airport tractors, with a Deutz or Perkins diesel engine producing at least 500 kW driving a multi-stage compressor to deliver 280 lb/min at approximately 42 psi through two air outlets. From activation to air-ready state takes three minutes or less. Aircraft compatibility covers Boeing 737, 747, 757, 767, and 777, and Airbus A300, A310, A320, A330, A340, and A380 — excluding GE90-engined 777 variants, which have specific high-flow starting requirements. Certifications include CE marking and alignment with IATA AHM 904/905/910/913/915/916/976, ISO 2026:1974, and SAE ARP 4084. A 300-litre integrated steel fuel tank, a 230 V shore-connection winter heating system for -30°C cold-start readiness, and automatic shutdowns on low oil pressure, high coolant temperature, or compressor overpressure make it a self-sufficient apron asset. The galvanised and zinc-coated steel frame, reflectors, and airport safety markings meet standard apron equipment visibility requirements. For procurement managers at airports where APU availability is not guaranteed and engine starting from external air is a normal operational procedure, the EA-ASU is a mission-critical ramp asset.
