Ducted Fan RC Jet - Working and History
The first ducted fan Jet experiments were performed in 1998. The launch of these experiments provided the knowledge and expertise to build and design improved ducts and fans. The year of 1999 witnessed the first test flights combined with an enhanced duct and fan combination. The induction of the technology of duct fans showed that duct fan jets have the capability to reach top speeds at high RPM due to attached thin blades and a tapered blade chord. In the past, "unducted" fan engines were also tested. The jet had fewer blades and it was greater in diameter size than the common ducted fan jet. However, "unducted" fan jets were bogged down because of their noise issues. In case of a ducted fan jet, the fans are used to contain the noise of the jet engine, thus providing a pleasant flying experience. Neither of these can be provided by an "unducted" fan engine. Also there was a risk involved in flying "unducted" fan engines because they can cause...