The Tutor EAs have been around for about 10 years now. This was a press release at the time:
Lees Avionics has been awarded a contract by Babcock to upgrade 93 Royal Air Force (RAF) Grob 115E training aircraft, also known as the Tutor Fleet.The upgrade includes installation of Avidyne TAS600 traffic advisory systems and a Sandel Electronic HSI, for improved situational awareness and collision avoidance.
The upgrade programme to improve the safety of the aircraft was launched after two mid-air collisions in 2009.