Four US Army Cobra Helicopters

Four US Army Cobra helicopters fly in tight formation.
 
Air show photography tip: Consider taking backup gear.
 
I spent about 10 hours traveling to/from this particular air show. I took two complete camera and lens setups. Though I intended to use both throughout the event (one telephoto zoom lens and one long prime telephoto lens), one of my high-mileage 1Ds III bodies was DOA. Fortunately, I still got most of the shots I wanted.
 
Take lots of memory card capacity as well.