Reminds me of the P-51 radiator. One tiny leak, the slightest battle damage, and the engine was toast. I have to admire the badass mofo's that flew them over long stretches of the Pacific. The P-48 (air cooled) would keep running with a lot of engine damage.
My truck sprung a leak in the heater hose last week (the fan belt ground a hole in it), and I was able to limp it the mile home before all the coolant was gone and the engine melted, but it wouldn't have gone any further.