Kenny Keller breaks down the 3T's of helicopter flight: effective translational lift boosts rotor efficiency with clean air, transverse flow effect creates unequal lift front to back, and translating tendency makes helicopters drift right from tail-rotor thrust. Essential for checkrides.
Hello everybody. Kenny with forewing helicopters and I wanted to give you a tip on something that people get confused on their checkrides. The 3T's effective translational lift, transverse flow effect and translating tendency. This is one of the ones that I've seen in a lot of years of teaching that always get people confused in the heat of the moment during the checkride. They mess these up all the time. So just a real quick some definitions to break them down. Effective translational lift is increased efficiency due to clean air coming into the rotor system. Transverse flow effect. We have clean air coming in so you have more lift in the front, less lift in the back due to gyroscopic precession. During a takeoff the helicopter wants to drift to the right and we counteract with left cyclic. The third one is translating tendency tendency of the helicopter to drift to the right due to tail rotor thrust. In the nstrom particularly, the rotor mass is rigged slightly to the left to counteract that right hand drift. So the three T's memorize these before you go to your checkride because everybody gets these three confused. So if this helps, please click the like button. And if you haven't been to our blog lately, go to our blog@fwhihelicopters.com and sign up for our email list for all the new things we have coming out. A whole bunch of cool stuff. I'm going to give one little hint about a new website that's coming up. I'm not going to give out too much on that yet, but it's going to be some exciting cool stuff. So fwhihelicopters. Com sign up for our email list and leave comments with feedback. That always helps too. So thanks a lot everybody and we'll see you later.
