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INDUSTRY FOCUS MILITARY, AEROSPACE & DEFENCE
Sean Fitall, senior product manager at PEI-Genesis, discusses
the key considerations for a new generation of electrical
connectors that deliver reliable performance in military applications
HigH performance W
hen used in military applications, such as manned ground vehicles and unmanned autonomous guided vehicles, electrical
connectors need to be capable of withstanding extreme temperatures, rapid temperature and humidity changes, persistent impact and vibration, and signal interference. The connectors also need to be designed with performance and reliability in mind, as they could well be in service for two or three decades. As a result, military connectors need
features such as high durability, easy mating and unmating, a high number of mating cycles to ensure long lifespans, superior shielding performance and high levels of ingress protection. Traditionally, D38999
connectors have been the first choice for use in military applications. First developed in the 1970s and now on its fourth generation design, this is a military-specific connector designed to ensure reliable performance.
d38999 connector features
D38999 connectors feature a hard outer shell, a polychloroprene rubber insert with cavities to house the contacts, and a backshell on the outer housing of every plug to provide additional shielding and durability. They can be supplied in aluminium, stainless steel, marine bronze or composite materials, and then plated in either olive drab cadmium, green zinc cobalt, nickel or black zinc nickel, depending on requirements. Composite options are more popular
because they are lightweight and offer high performance levels in harsh environments. They are also all REACH and RoHS compliant (apart from the Olive Drab plating) and all QPL qualified for use in military applications. Now, building on the reliability of the D38999
in military applications, the next-generation Rhino 38999 connectors have been introduced.
rHino 38999 connectors
Rhino 38999 military off-the-shelf (MOTS) connectors combine the benefits of field proven
3 Design solutions FEBRUARY 2024 0
connectors witHstand tHe rigours of
military applications
MIL-DTL-38999 series III circular connectors with low resistance RADSOK power contacts. This makes them ideal for high power and high voltage applications in harsh environments. These offer shock and vibration resistance in accordance with DEF- STAN 00-35 Iss 4 Ch2 01, a Black Zinc Nickel plating that is compliant
with restriction of hazardous substances (RoHS) requirements, provide over 500 hours of salt spray endurance, and are IP68 mated and unmated. The connectors feature a hyperbolic contact
design that results in low contact resistance and high contact endurance, while delivering a high current carrying capacity of up to 1,000A.
Furthermore, Rhino 38999 connectors offer IP2X finger protection in accordance with BS EN 60529 mechanical finger and deliver 360˚ screening facilitated with straight or 90˚ EMC backshell. The superior EMC performance of Rhino 38999
connectors enables equipment to meet the requirements of military EMC specifications such as DEF STAN 59-411 and MIL-STD-461. Such features combine to offer reliable
performance in the most challenging environments, a key benefit in the military sector. Amphenol Rhino connectors are available in the UK from PEI-Genesis.
pei genesis t: 023 8062 1260
www.peigenesis.com
visual perception for flight control units
Scorpio, Recogni’s inference solution for autonomous mobility, has been chosen by Daedalean, a developer of certifiable AI-enabled avionics systems, as the visual perception processing engine for a new flight control unit. The unit meets the needs of complex visual awareness systems and FAA requirements. Before fully autonomous aircraft are ubiquitous, aerial mobility will advance by assisting,
reducing qualification needs, and eliminating workload on piloted and remote-controlled aircraft. To do this, flight control units must be capable of high-resolution detection, identification and path planning without the need for liquid cooling. In addition, FAA certification requires systems that are quantifiably traceable on every action taken by the control unit. Daedalean’s situational awareness suite requires a computing unit that is high-performance but low in weight and size, and therefore cannot be reliant on exhaustive and expensive cooling systems. Scorpio is scalable enough to meet this need while also minimising power consumption and cost. “To exceed the performance of the human pilot in perception, decision making, and path
planning, tomorrow’s autonomous aircraft require cutting-edge, efficient AI perception processing, which is new to aviation,” said Luuk van Dijk, CEO of Daedalean. “Scorpio is a solution that addresses the key problems we were looking to solve.”
recogni
www.recogni.com Daedalean
www.daedalean.ai
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