The Nav Training variant or "Pig" as it was known could get several baby navs lost at the same time. A classic case was on a night astro sortie when the students ascended into the astrodomes to take a sighting of the same celestial body and all the little heads were pointing in different directions.
The nursery blue flying suits, G helmets, LSJ's and chest mounted parachute harnesses did nothing to abate the muck sweat of being temporarily unsure of your position.