For so long the mainstay of the RAF's strike force, the Tornado GR4 is now in its twilight years. However, it continues to be flown by three front-line squadrons - Nos 12(B), IX(B) and 31 from RAF Marham in Norfolk, 41(R) Sqn at RAF Coningsby (Trials and Evaluation Unit) together with the type's operational conversion unit, No XV(R) Squadron, at RAF Lossiemouth in Moray. Able to operate by day or night and in all weathers, the Tornado remains just as relevant, flexible and capable a strike aircraft today as when it entered front-line operational RAF service in 1982. This much has been proved by its involvement in many recent conflicts in the Middle East. Armed with precision-guided weapons and possessing highly advanced reconnaissance sensors, the GR4 will continue to be part of the RAF's inventory until a planned out-of-service date in 2019. Already confirmed for RIAT 2015 are two No XV(R) Squadron aircraft celebrating the unit's 100th anniversary this year; an example from a unit still to be confirmed will take part in the multi-national Tornado three-ship in the flying display.