The notar was a waste of time,The engineers I talked to wanted an elipitical cross section on the tail ,It has a yaw instability that flickers the tail in forward flight,The added drag slows the top speed and proformance at altitude is less then a standard 500, and the mechanics are more critical lots more parts,In some cases the tails just fail in flight.(Fall off)Not a good idea......

Es un gran avance y una idea muy visionaria; aparte de segura. Lástima que haya tanta ignorancia (en el pueblo llano) al respecto y que se haya tardado tanto en dar a conocer.

i would like toknow how does this notar works in detail
and any technic should be performed when they got a pedal stuck.
thanks
sam
pilot
mi-17 helicopter
From Rwanda air force

@ Farah

The NOTAR config works on a certain fluid dynamics phenomenon called Coanda effect which simply means that a fluid (in this case air) when it flows over a body tends to stick to the body if it is curved. What they do with such choppers is create a duct and a fan inside to direct the air blown from the main rotor fans on the side of the tail shaft. The location of the duct is such that the air flowing around it opposes the torque of the main rotor. Controlling how much air the duct allows to pass through you can control the direction of the helicopter.

i am a student in helicopter maintenance... i just wanna asked you, how's the NOTAR system works??

Mr. MOHAMMED MUZAKKIR SHARIEFF, could you tell me if your concept are flying today? I like to know more about your concept see also my website: home.wanadoo.nl/helicopter

This helicopter design has a good concept of eliminating the anti torque device like tail rotor blade which is very dangerous during combat but i have Helicopter design which will eliminate any kind of anti torque device but with only single main rotor, surpriced it's a reality,contact me if you want to know the details +91-9980419072