Our Schools > Elementary School > Educators > Trina Scanlan - Title I > What is IRLA?
The vertical stabilizer is to provide additional anti torque force to the fuselage once the aircraft has forward motion and airflow across the lifting surface. The design makes use of forward motion and the resulting airflow to create an anti torq...
1 The chain tension of a chainsaw may be adjusted with a chain tensioner.  A marine riser tensioner is a device used on an offshore drilling vessel which provides a near constant upward force on the drilling riser independent of the movement of the floating drill vessel.