That`ll be the TS-11- Iskra,tandem single jet,straight wing...equivalent to a JP5 ,in performance...think there is one at Bruntingthorpe,on `run days..
Wing is thinner and more laminar than a JP.(UIUC airfoil data site)(The incomplete Guide to airfoil useage.)
Last edited by sycamore; 25th Jun 2018 at 19:20.