However , later build aircraft are now equipped standard with the - 8C5 model , which is essentially an uprated 8C1 .
The early build aircraft were equipped with two General Electric CF34 - 8C1 engines .
Later build aircraft are now equipped standard with the - 8C5 model , which is essentially an uprated 8C1 .
The early build aircraft were equipped with two General Electric CF34 - 8C1 engines .