The HAL HAOP-27 Krishak was a military observation aircraft produced in India in the 1960s. It was initially developed by Hindustan Aeronautics as an enlarged four-seat version of the HAL Pushpak light aircraft. Two prototypes were flown in 1959 but with no interest from buyers the project was shelved until the Indian Army issued a requirement in the early 1960s for an aircraft to replace the Auster AOPs then serving in the observation role.
Made by Hindustan Aeronautics Limited.