On 5 April 2019, during Frisian Flag 2019 at Leeuwarden Air Base, the Swiss Air Force' Boeing F/A-18C Hornet "J-5007" was seen
with STBY 121.50 in big letters on the external center drop tank. Frisian Flag is a multinational exercise in the Netherlands. Boeing F/A-18C Hornet
"J-5007" is operated by Fliegerstaffel 11 of the Swiss Air Force, based at Militärflugplatz Meiringen in Berner Oberland.
Although Switzerland is not a NATO member, Fliegerstaffel 11 is a member of the 'Tiger Association', which links all the squadrons
with a tiger as a squadron emblem. In April 1998, Boeing F/A-18C-48-MC Hornet s/n 1335/SFC007 was seen first in service
with the Swiss Air Force as J-5007.