Fung shui master Tony Chan Chun-chuen, who has declared himself the sole beneficiary of Nina Wang Kung Yu-sum's estate, is an aircraft aficionado who relaxes by taking to the skies in a helicopter from the old Kai Tak airport. Mr Chan owns an EC-130 helicopter worth about US$1.5 million as part of a syndicate with business partner Simon Lo Lin-shing, and has been a keen pilot for many years, a source confirmed. Having developed a career as a property developer, Mr Chan has claimed he earned Wang's 'trust and affection', and that Asia's richest woman left him the Chinachem Corporation estate, which could be worth up to HK$100 billion, in a will dated October 16, 2006. Members of the Hong Kong Aviation Club described Mr Chan as a friendly man with a passion for flight. 'He used to be in here a lot more than he is now,' said a staff member at the club in Kai Tak, which has about 500 members. Another club member said Mr Chan was also keen to talk up his company, BAA Flight Services, which runs a fleet of private jets. Wang bought HK$470 million worth of shares in London-listed biometric company RC Group Holdings, which is controlled by Mr Chan, four days before her death on April 3. The purchase, through offshore-registered Veron International, gave her 25 per cent of the company and made her the largest shareholder. The firm gives its address as Chinachem Golden Plaza in documents that were filed to the London Stock Exchange. Mr Chan this week filed a caveat in the High Court stating that no grant of the estate should be made without notifying him. It was apparently to contest to a similar notice lodged by the Chinachem Charitable Foundation, the beneficiary of a purported will by Wang sealed in 2002. The 2002 will gives all of Wang's property to the foundation and names the UN secretary-general, the Chinese premier and the Hong Kong chief executive as administrators.