Interesting FOI released today regarding the operating costs. For the 2019/20 FY it was £13.3M.As people have said the Tucano was the lead in to the Hawk. The Red Arrows fly the Hawk T1, also flown by 100 sqdn at Leeming. The bulk of the RAF Hawks are T2 types.
Last time I looked the Red Arrows cost about £6000,000 pa to run. Most of this came from commercial sponsorship so not really a drain on the ration strength.