unassailable ‘fit & forget’ pressure moulded cable systems for hostile environments

Aircraft Wiring Harnesses

Scientific Management International is a versatile manufacturer of bespoke moulded wiring harnesses. Scientific Management International’s versatility comes from our ability to work with multiple cable & connector manufacturers to suit the application and environment. These cables & connectors coupled with our high performance mouldings ensure products are engineered for a ‘fit & forget’ solution.

Aircraft environments expose aircraft wiring harnesses to a range of dynamic extremes. Traditionally these harnesses utilise off the shelf materials. These solutions are not for the long term and require constant replacement and through life costs. We engineer high quality bespoke moulded wiring harnesses tailored to the environment, to deliver the most cost effective, robust and reliable solution. These harnesses can be constructed with either aircraft cable connector terminations, gland terminations or combinations of both.

SMI Aerospace Plane
Download SMI's Aircraft Wiring Harnesses Data Sheet

Scientific Management International’s Aircraft Wiring capabilities include:

Multi Aircraft Cable Connector Terminations

Multiple cable combinations available, up to 19 separate cables terminated in a single connector. Typical cable jacket materials include low/medium/high density Polyethylene, halogen free/flame retardant Polyurethane, and multiple grades of Neoprene.

Fully amalgamated Aircraft mouldings

Thermoplastic mouldings with complete amalgamation between cable jacket and injected material for higher integrity sealing. High chemical covalent bonding present during thermoplastic process.

Low Voltage Electrical connectors (1000 Vd.c.)

Multiple contact arrangements available, up to 222 contacts in a single connector. Contact sizes ranging from 1mm diameter up to 10mm depending on current ratings required. Typical working voltages of 1000 Vd.c. and currents up to 50 Amps.

Coaxial connectors (50 Ω & 75 Ω)

Multiple contact arrangements available, up to 8 contacts including 50 Ω & 75 Ω. Typical working voltages of 1000 Vd.c. and currents up to 6 Amps.

Fibre Optic connectors

Multiple contact arrangements available, up to 24 contacts including OS1, OS2, OM1, OM2, OM3 fibre types. Low insertion losses, multi bandwidth testing available including CWDM.

Hybrid Electrical and Coaxial connectors

Multiple contact arrangements available, up to 44 contacts including 50 Ω & 75 Ω. Contact sizes ranging from 1mm diameter up to 10mm depending on current ratings required. Typical working voltages of 1000 Vd.c. and currents up to 25 Amps.

Hybrid Electrical and Fibre Optic connectors

Multiple contact arrangements available, up to 24 contacts including OS1, OS2, OM1, OM2, OM3 fibre types combined with Contact sizes ranging from 1mm diameter up to 2mm depending on current ratings required. Low
insertion losses, multi bandwidth testing available including CWDM. Typical working voltages of 1000 Vd.c. and currents up to 25 Amps.

Medium Voltage connectors (6.6KV)

Multiple contact arrangements available, up to 6 contacts including medium voltage 6.6 kV. Typical working voltages of 6600 Vd.c. and currents up to 150 Amps.

Dry-mate & Wet-mate connectors

Multiple contact arrangements available, up to 61 contacts. Contact sizes ranging from 1mm diameter up to 10mm depending on current ratings required. Typical working voltages of 1000 Vd.c. and currents up to 25 Amps.

Our expertise is borne from decades of experience, and these characteristics are just an indication of what is possible. If there is something specific you need, then talk to us as early in the design process as possible.

Aircraft Wiring Harnesses

Technical Characteristics

Aircraft Wiring Harnesses technical characteristics