[DOC] [TLE] Helicopter - Wikipedia [PAR] A helicopter is a type of rotorcraft in which lift and thrust are supplied by rotors. 
This allows the ... Coaxial helicopters, tiltrotor aircraft, and compound helicopters 
are all flying today. ..... The tail rotor pushes or pulls against the tail to counter the 
torque effect, and this has become the most common configuration for helicopter
... [DOC] [TLE] 3. The Helicopter is Born - All the World's Helicopters and Rotorcraft [PAR] But unfortunately for this French engineer, his double-rotor aircraft crashed and 
was ... built a machine with a single large lifting rotor and a smaller tail rotor. 
Although the idea for this type of helicopter had already been thought of many .... 
Breguet had returned to his beloved helicopters during the early 1930's but 
decided to... [DOC] [TLE] How does a helicopter work? - Explain that Stuff [PAR] Aug 8, 2016 ... Planes make lift with airfoils (wings that have a curved cross-section). ... Four 
people holding the tail rotor of a US Navy helicopter ... we have to counteract it in 
some way with what's called counter-torque (a turning force in the opposite 
direction). ... Each of these blade types has advantages and drawbacks. [DOC] [TLE] Torque - Helicopter Aviation [PAR] In tandem rotor and coaxial helicopter designs, the rotors turn in opposite 
directions to ... a constant ratio, the tail rotor produces thrust in a horizontal plane 
opposite to torque reaction developed by the main rotor. ... To counteract this 
friction, the tail rotor thrust is applied in an opposite direction to counter the 
frictional forces. [DOC] [TLE] Chapter 01: Introduction to the Helicopter [PAR] aircraft because the helicopter derives its source of lift from the rotor blades ... 
main rotor, it was the single main rotor with an antitorque tail rotor configuration... [DOC] [TLE] Helicopter Development in the Early Twentieth Century [PAR] His helicopter used two counter-rotating rotors to cancel torque. ... controls were 
inadequate, and the craft never developed into a practical helicopter. ... Sikorsky 
turned to airplane development, returning to helicopters only in the 1930s after 
he ... Berliner also was the first to propose the auxiliary vertically mounted tail 
rotor. [DOC] [TLE] S-69 - Sikorsky Archives [PAR] The advancing blade concept had been shown in a textbook in the 1930s, but the 
... a manufacturing method was developed that used a 17 foot 6AL-4V titanium ... 
One month later the first XH-59A aircraft experienced a low speed accident on ... 
With the counter-rotating rotors, no tail rotor was required to react rotor torque. [DOC] [TLE] Helicopter Rotor - Scribd [PAR] A helicopter main rotor or rotor system is a type of fan that is used to ... In the 
1930s. fully articulated rotor systems.1. image from the German Federal Archives 
... de la Cierva researched and developed many of the fundamentals of the rotor. 
.... the effects of torque on the aircraft without relying on an antitorque tail rotor. 
which... [DOC] [TLE] The Helicopter as a Combat Platform  Indian Defence Review [PAR] Oct 13, 2012 ... By the mid-1930s, development began to accelerate. ... efforts and prevented 
large scale development of any type. The trench .... A small tail rotor was 
provided to counter torque forces as well to serve as a rudder for directional 
control. ... rotor designs, and were not developed as much as fixed-wing aircraft. [DOC] [TLE] Autogyro History and Theory - jefflewis.net [PAR] Like a helicopter, it is a rotary wing aircraft- which means that it has a rotor to 
provide lift .... In fact, in the 1930's and 40's, autogyros were used to carry mail 
from post office .... from airplanes and helicopters, it would be nice to know how 
all this developed. ... rotors to provide lift and by counter-rotating to eliminate 
torque. [DOC] [TLE] Helicopter - New World Encyclopedia [PAR] Helicopters are classified as rotary-wing aircraft to distinguish them from ... made 
a helicopter that used two 20-foot (six-meter) counter-rotating rotors driven by a ... 
hover flight were developed decades after fixed-wing aircraft, due largely to the 
.... When

Question: The tail rotor counters torque on this type of aircraft developed in the 1930s
Answer: Helicopter