System integration began in the late 1980s and by 1989 Hindustan Aeronautics (HAL) had modified three HS 748 aeroplanes with pylons as well as an additional auxiliary power unit to power the rotodome hydraulics, computers, communications and the onboard experimental gear.
The trials lasted for approximately three years until the airborne radar data processors had to be replaced with a newer variant and the trials were suspended pending completion of the upgrade.