PAK-FA clocks 100 flights Posted on November 4, 2011 by alert5 The two PAK-FA prototypes have clocked 100 flights on Nov. 3. Related posts (Automatically Generated): Sikorsky X2 makes final flight CF-18 pilot flies 50th combat mission during Op Mobile F-15 instructor clocks 3,000 flying hours Mullen: U.S. to continue spy flights despite PLAAF Su-27 incident RN helicopter pilot clocks 7,000 hours India’s Light Combat Helicopter to make Aero India debut