A quiz on helicopters IMAGE CREDIT: ISTOCK.COM - Getty Images× On this day in 1936, the first practical helicopter, the Focke-Wulf FW 61, took its first flight piloted by Ewald Rohlfs. This quiz is about helicopters Flying machines 1. Who is regarded as having designed the first helicopter, often described as an ‘aerial screw’ in the late 15th century? The drawings are in his notes, and he apparently made small flying models but none survived. 2. With the NATO code name ‘Hip’ and more than 17,000 built around the world, which is the world’s most produced helicopter, still a workhorse in the Indian Air Force?