According to the document, the events of the day and the ceremony are scheduled to begin on April 29th at 8:15am when the general congregation will arrive at the Great North Door of Westminster Abbey. Other groups of greater importance and personal connection to the bride and groom will arrive at intervals throughout the morning.
The bride and groom will leave for the Abby at 10:51am and 10:38am respectively. The service will begin at 11:00am. The carriage precession with the newlyweds will leave the Abby at 12:15 arriving at Buckingham Palace fifteen minutes later.
As part of an aerial salute to the new couple, a special RAF fly-by will occur overhead just five minutes after the Queen and the Bride and Bridegroom, together with their Families, appear on the Balcony at the palace.
The special FLYPAST (Fly-by) will consist of a combination of vintage and modern RAF (Royal Air Force) aircraft. The lead formation will consist of a World War 2 grouping of a Lancaster Bomber, flanked on one side by a Spitifre and on the other wing by a Hurricane. The two were legendary fighter aircraft for the RAF during the war. Following this group will be a Windsor (diamond) Formation consisting 4 modern fighter aircraft. At the front and read of the diamond will be 2 Typhoon jets, and on the sides will be 2 Tornado fighter aircraft.
You can download the complete 96 page list including the guest list and schedule from:
http://www.princeofwales.gov.uk/content/documents/Royal%20Wedding%20media%20briefing_230411.doc