The Miramar Air Show kicked off this morning and lasts until Sunday. Today is also Military Day at the show - and active-duty troops, members of the reserves, and military retirees can get discounted preferred seating tickets.

In addition, show-goers now have a high-tech way to learn more about what they're watching in the sky. The Miramar Air Show app, according to the official lowdown from iTunes, works with the iPhone and iPad:

Organizers expect roughly 750,000 visitors to the Miramar Air Show this year.

The highly-anticipated performance of the Blue Angels will take place both on Saturday and Sunday at 2:45 in the afternoon.