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 boasts twice the air range compared to its American counterpart. This suggests that when Chinese official sources revealed the datalink on Yu-8, it implies that the LWT Yu-8 employs a Russian APR-3E or similar Chinese copies. Many military analysts and enthusiasts have also hypothesized that due to the Russian LWT's larger size and weight, to match the range of CY-5 armed with lighter and shorter torpedoes from Western sources, the rocket motor of Yu-8 would need to be either enlarged or more powerful.