With the introduction of the Daher-Socata TBM 900 single-engine turboprop in March, the French manufacturer revealed that it had been working on the project for three years—and that the airplane was already done with test flights, certified, and in production, with first deliveries underway. The new airplane replaces the TBM 850, which has been on the market since 2006, with more than 300 copies in service around the world. 
Although the basic airframe and engine of the 900 remain the same as those of th…