The correct answer for Question # 4 is the Eurocopter EC 120B, or 135 / 635. Correct answer was submitted by Chopperfan, Brain44 and Paul ToZ.The standings after 4 Questions is : First / Chopperfan and Paul ToZ / 4 correct, Second / Brain44 / 3 Correct, and Third / Jeaton01, SoD Stitch / One Correct.