Nearly all military vehicles from the UK, mainland Europe and the US are 24 volt and it has something to do with radio interference shielding, iirc. Certainly all radio equipped vehicles use 24v wiring with 2x12v batteries.
Many military Land Rovers (60+ years worth) were 24v, at least the ones built specifically for military usage. The lights relay on mine is both 12 & 24 volt, so interchangeable with the many models of vehicle in service. The windscreen wipers are mechanical though, no relay at all, but they only have two positions; on & off.
Many military Land Rovers (60+ years worth) were 24v, at least the ones built specifically for military usage. The lights relay on mine is both 12 & 24 volt, so interchangeable with the many models of vehicle in service. The windscreen wipers are mechanical though, no relay at all, but they only have two positions; on & off.