Engineering Fanless, Conduction-Cooled OpenVPX Chassis for Harsh Aerospace Environments
Core aerospace engineering and protocols for Ruggedized OpenVPX Hardware.
Why Cooling Fans Are Forbidden in Critical Avionics
External cooling fans fail due to bearing wear and ingest airborne sand, moisture, and de-icing chemicals that corrode sensitive electronics. Critical avionics must be completely sealed and fanless.
Conduction-Cooled VITA 48 Mechanical Design
AvionicsNodes packages compute blades into VITA 48.2 conduction-cooled wedge-lock chassis. Heat generated by multicore processors flows through solid copper heat pipes into ruggedized aluminum chassis ribs, transferring thermal energy directly to the aircraft fuselage.
- VITA 48.2 Conduction Cooling: Channeling heat directly into airframe cold plates without internal fans.
- Sealed Enclosures: Completely isolated from dust, sand, saltwater fog, and de-icing fluids.
- Explosive Decompression: Surviving sudden depressurization from sea level to 50,000 feet.
- Conformal Coating: Polyurethane and parylene coatings preventing dendritic short circuits.
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