Second Y-20 prototype now flying Posted on July 31, 2014July 31, 2014 by alert5 Related posts (Automatically Generated): Fifth PAK-FA prototype flown Photo: First Shenyang J-16 prototype PAK-FA prototype caught fire Prototype eMRBM successfully tested Lockheed Martin’s prototype laser system destroyed eight small-caliber rocket targets i Dornier Do-228 flying test bed delivered to India’s DRDO