{ "cells": [ { "cell_type": "markdown", "id": "4611c317", "metadata": { "slideshow": { "slide_type": "slide" } }, "source": [ "# Tail Rotor" ] }, { "cell_type": "markdown", "id": "341e2c84", "metadata": { "slideshow": { "slide_type": "skip" } }, "source": [ "Quite simply, the reaction from rotating the main rotor (CCW, say) has the tendency to spin the rest of the helicopter in the opposite direction (CW). In forward flight, the vertical tail surface can be succesfully used to generate enough force (or moment about the helicopter CG) so as to counteract this (CW) moment. However, in hover or low speed flight a different mechanism is needed to balance the overall yaw moments for safe and sustained operation." ] }, { "cell_type": "markdown", "id": "df056b89", "metadata": { "slideshow": { "slide_type": "-" } }, "source": [ "
Conventional design UH60 helicopter [source])
\n", "Schematic of a \"tip thrust-driven\" rotor [source] \n", "
\n", "Fairey Rotodyne [source] \n", "
\n", "