Although this summer has been exceptionally rainy in the U.K., the thundering roar that will no doubt be heard overhead in mid-July has nothing to do with summer storms and everything to do with the world’s largest military airshow. The Royal International Air Tattoo — also known as RIAT — takes to the skies July 19-21 at RAF Fairford, located in the picturesque Cotswolds approximately two hours east of central London.

What began July 20, 1969 as a military demonstration has evolved into a military spectacle featuring hundreds of aircraft from around the world. Static displays and jaw-dropping aerial demonstrations from more than 20 nations will thrill aviation buffs. This year marks the 50th anniversary of both RIAT and the Apollo moon landing, as well as the 70th anniversary of NATO. Special ceremonies will commemorate these historic occasions.

Know before you go

• Tickets MUST be purchased in advance and will not be available to purchase at the gate on the day of the event. Admission prices vary beginning at £47. Ages 18 and under are free with admission of a paying adult. Purchase tickets at www.airtattoo.com. You will need to print out your tickets and bring them with you. There may be special pricing or a specific day dedicated to military personnel. Be sure to check the website for the most up-to-date information.

• Outside food and drink are allowed, as are folding chairs, picnic blankets and pop-up shelters not exceeding 1.5 meters in height. There will be plenty of food concessions available as well.

• Unfortunately, unless Fifi and Fido are guide or assistance dogs, they will need to be left at home.

• In the event, the sun makes a rare appearance, be sure to bring plenty of sunscreen and stay hydrated.

For more information or to purchase tickets, visit www.airtattoo.com.