The prototype Ka-62 helicopter successfully completed its first test flight on Thursday. The flight lasted 15 minutes at a speed of 110 kmh and marked a significant milestone in the model’s development, showing that the prototype has undergone all the necessary revisions, the Russian Helicopters company said in a statement.br br COURTESY: RT's RUPTLY video agency, NO RE-UPLOAD, NO REUSE - FOR LICENSING, PLEASE, CONTACT br RT LIVE br Subscribe to RT! br Like us on Facebook Follow us on Twitter Follow us on Instagram Follow us on Google+ Listen to us on Soundcloud: br RT (Russia Today) is a global news network broadcasting from Moscow and Washington studios. RT is the first news channel to break the 1 billion YouTube views benchmark.