Find the word definition

Crossword clues for notar


NOTAR (NO TAil Rotor) is the name of a helicopter system which avoids the use of a tail rotor. It was developed by McDonnell Douglas Helicopter Systems (through their acquisition of Hughes Helicopters). The system uses a fan inside the tailboom to build a high volume of low-pressure air, which exits through two slots and creates a boundary layer flow of air along the tailboom utilizing the Coandă effect. The boundary layer changes the direction of airflow around the tailboom, creating thrust opposite the motion imparted to the fuselage by the torque effect of the main rotor. Directional yaw control is gained through a vented, rotating drum at the end of the tailboom, called the direct jet thruster. Advocates of NOTAR believe the system offers quieter and safer operation.

Usage examples of "notar".

En El Zahir y El Aleph creo notar algún influjo del cuento The Crystal Egg (1899) de Wells.

There were no sharp angles on the flat-bellied craft, and the NOTAR tail systemno tail rotorand advanced bearingless main rotor made the Mosquito virtually silent in flight.