Field & combat
Fourth point of contact
Army
Your backside, from the five points of contact in a parachute landing fall (feet, calf, thigh, buttocks, back).
“Keep your fourth point of contact off that wet bench.”
Your backside, from the five points of contact in a parachute landing fall (feet, calf, thigh, buttocks, back).
“Keep your fourth point of contact off that wet bench.”