QUOTE:-The Great Book of Modern Warplanes,edited by Mick Spick
"Switzerland was impressed with the docile handling and superb radar/avionics which is felt was suitable for operations in such a mountainous country ,but then paused to re-evaluate.After some considerable delay,the first Swiss hornet arrived in 1996,and No16 Squadron was commissioned that year at Payerne.
Swiss F/A-18C/D Models ,powered by F404-GE-402 engines are virtually straight off the shelf,but with a couple of unusual modifications.In Switzerland the Hornet is used for Air Defence only ,and their aircraft are thus devoid of air-to-surface kit.But the ensuing weight savings were eaten up by the use of titanium fuselage bulkheads instead of aluminium alloy,which increases airframe life by another 2000 hours.The Swiss are not known for rapid aircraft replacement,and thus look like a typical example of Helvetian thrift.Almost certainly the Swiss will still be operating Hornets in 2030,long after they have been retired elsewhere
The ALQ-165 ASPJ is fitted ,which implies more faith in the systems than the US services had(another bargain?),while the use of liquid oxygen,regarded as a hazard in tunnel shelters,has been replaced by an ON-Board Oxygen Generation Systems(OBOGS)."
Hope the above quote can help. Its intresting how the Author Implies that the Swiss will still be operating Hornets in 2030.I guess time will tell.The author also states that the OBOGS replaces liquid oxygen as it is a hazard in tunnel shelters implying that the F18 are parked in Tunnel shelters.Intresting,what do you guys think?