The Russian APR 3e has twice the range of its American counterpart in the air and hence when the Chinese official sources have revealed the existence of datalink on Yu-8, it suggests the LWT Yu-8 delivers is Russian APR-3E or similar Chinese copies. Many military analysts and enthusiasts have also postulated that since the Russian LWT is larger and heavier, to maintain the same range of CY-5 armed with lighter and shorter torpedoes of western origin, the rocket motor of Yu-8 would have to be either larger or more powerful.
The Russian APR 3e has twice the air range of its American counterpart, making it evident that when Chinese official sources disclosed the datalink on Yu-8, they indicated that the LWT Yu-8 uses a Russian APR-3E or similar Chinese copies. Many military analysts and enthusiasts have also speculated that since the Russian LWT is larger and heavier, to maintain the same range as CY-5 equipped with lighter and shorter torpedoes of western origin, the rocket motor of Yu-8 would need to be either enlarged or more powerful.