Speculation is swirling around the type of nuclear submarine that will emerge in tomorrow's naval parade. In recent days, the mainland media has made an all-out effort to find out the exact model that will be on show after a senior naval official announced the participation of a stealth warhead-bearer. The favourite candidates are the Type 092, China's first generation nuclear submarine, and the Type 094, the most advanced model, also known as Jin Class. Each would carry a noticeably different message if appearing in the parade, according to a senior researcher at the People's Liberation Army Academy of Military Sciences. 'The type of submarine determines how far we can go,' said the researcher, who refused to be identified. 'I will be disappointed if the 092 shows up. It means our strategy will remain the same, that we will be completely defensive. But if it turns out to be the 094, well, congratulations to the navy. They are ready to go global.' Official information about China's fleet of nuclear submarines is not available. But according to Sinodefence. com, a Chinese military online source based in Britain, there is a significant difference between the two vessels. The Type 094, launched in 2004, is more than 20 years newer than the Type 092, according to the website. While it is reported that the 092 has not sailed outside regional waters because of hardware limitations, the 094 - with a more powerful reactor, better noise-cancelling technology and a larger hull - could carry out a non-stop voyage around the world. The 094 also carries a much more aggressive weapons payload, with 12 JuLang 2 submarine-launched ballistic missiles that have a maximum range of 7,000 to 8,000km, three times that of the first-generation JuLang 1 used by the 092. Rear Admiral Yin Zhuo , former director of the Chinese Naval Strategy Research Institute, told Xinhua last week that the submarine would feature a teardrop shape - a trademark of the 094. The 092 resembles a whale, with its front bigger and tapering back towards the tail. Zhao Junhai , senior engineer of the China Ship Scientific Research Centre, said that a teardrop shape would enable the submarine to go more quietly and faster, but it might be less efficient when the ship surfaced, meaning that the 094 was designed to spent most of the time underwater. Admiral Ding Yiping , the deputy commander of the navy, confirmed yesterday that a nuclear submarine would show up but remained ambiguous about the type. 'The development of the Chinese navy has raised suspicion overseas ... when they see the real Chinese navy, they will dismiss the doubts and we can develop a harmonious ocean together.'