"Then we have that crazy moment where everything should be working, but it isn't... and we (in the  2 1/2 ton Attack Engine) start to slide downhill - backwards.  The OnSpot's didn't engage.  We start to slide faster - which gives you that really sick feeling in your stomach. Then the engine starts to swing around, leaving us sliding downhill backwards AND sideways... nose end coming toward the same drop-off..."

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