The tragedy happened on the M6 motorway on October 15 between junctions 38 and 39 near Tebay, Cumbria.
Richard Woods, 40, who worked at RAF Marham, was driving in the wrong direction of the northbound carriageway when his vehicle hit a Toyota carrying two adults and three children.
Mr Woods, who lived in Cambridgeshire, and four occupants of the Toyota died at the scene.
A seven-year-old boy was airlifted to hospital in........