USAF Major Mark Arlinghaus and Major Dennis Malfer perform the Calypso Pass <-
The USAF Thunderbirds are flying #5 Solo (inverted number) and #6 Solo F-16C 'Falcons'.

In mirror formations, one Thunderbird must be inverted, and it is always number 5. In fact, the number 5 on this aircraft is painted upside-down, and thus appears right-side-up for much of the routine. There is also an extra amount of humor regarding the inverted performance of Thunderbird 5: the pilots all wear tailored flight suits with their name and jet number embroidered on the left breast. The suit for the pilot of the number 5 airplane has the number sewn upside-down.

Photo by Bob Nelson on Sunday, August 30, 1998 at the Grand Forks Air Force Base.