Basics
Engines
Reciprocating Engines Reciprocating engines, also called piston engines, are generally used in smaller helicopters. Most training helicopters use…
August 28, 2021 · Rajil TLAuthor: Rajil TL
Rajil TL is a SenseCentral contributor focused on tech, apps, tools, and product-building insights. He writes practical content for creators, founders, and learners—covering workflows, software strategies, and real-world implementation tips. His style is direct, structured, and action-oriented, often turning complex ideas into step-by-step guidance. He’s passionate about building useful digital products and sharing what works.
Basics
Antitorque Drive Systems
The antitorque drive system consists of an antitorque drive shaft and a antitorque transmission mounted at the end…
August 28, 2021 · Rajil TLBasics
Antitorque System
Helicopters with a single, main rotor system require a separate antitorque system. This is most often accomplished through…
August 28, 2021 · Rajil TLBasics
Freewheeling Unit
Since lift in a helicopter is provided by rotating airfoils, these airfoils must be free to rotate if…
August 28, 2021 · Rajil TLBasics
Swash Plate Assembly
The purpose of the swash plate is to convert stationary control inputs from the pilot into rotating inputs…
August 28, 2021 · Rajil TLBasics
Tandem Rotor
Tandem rotor (sometimes referred to as dual rotor) helicopters have two large horizontal rotor assemblies; a twin rotor…
August 28, 2021 · Rajil TLBasics
Fully Articulated Rotor System
Fully articulated rotor systems allow each blade to lead/lag (move back and forth in plane), flap (move up…
August 28, 2021 · Rajil TLBasics
Rigid Rotor System
The rigid rotor system shown in Figure 4-3 is mechanically simple, but structurally complex because operating loads must…
August 28, 2021 · Rajil TLBasics
Semirigid Rotor System
A semirigid rotor system is usually composed of two blades that are rigidly mounted to the main rotor…
August 28, 2021 · Rajil TLBasics
Main Rotor System
The rotor system is the rotating part of a helicopter which generates lift. The rotor consists of a…
August 28, 2021 · Rajil TL