The General Robotics, Automation, Sensing and Perception (GRASP) Lab, located at the University of Pennsylvania, is already well known for its work with quad rotors. And now they can fly autonomously.
Experiments performed with a team of nano quad rotors at the GRASP Lab, University of Pennsylvania. Vehicles developed by KMel Robotics.
Spektrum introduces another enormous change for the RC industry—The most affordable full-range 2.4GHz radio ever available. The DX5e brings together the unbeatable control of genuine DSM2 technology with the simplest, easiest-to-use design available, letting anyone, from park fliers to students to instructors and more, take advantage of Spektrum technology for less
Mode 2 is most often used in the United States, while Mode 1 is most often used in Europe, there are two other modes that are used overseas and here is a listing of the 4 modes and their actions.
|Left stick||Right stick|
I remember discussing with Mike Dammar back in 2003, he was the inventor of this concept way before it get sold to Draganfly innovations (I think his company was name AFOT) Anyway, here is a list I’ve compiled of all Quadcopter available today on the market. I have still my Roswell Flyer, HMX-4, Draganflyer back from 2004 but in comparison of these ones, it look now more like a toy.
There are two different propeller-rotations. The front and back propeller turn clockwise, while the left and right propellers spin counter-clockwise. To hover, all propellers rotate at the same speed. When doing so, the forces between the clockwise props on one hand, and the counter-clockwise props on the other hand, are balanced out. This makes the quadrocopter hang steady in the air.
To be able to fly in one direction, the quadrocopter will be brought out of balance. The speed of the propeller that opposes the desired direction is increased. This makes the quadcopter tip over in a certain direction. Example: to fly forward, the back-propeller has to turn faster. This is called "pitch" or "nick" or forward/backward-movement. Left and right movements are called "rolls".
The opposite (vertical) axe is called "yaw". To be able to yaw you need a force to turn around. This force is created by changing the speeds between the forward/backward props and the left/right props. Example: to yaw clockwise, the forward/backward propellers will turn faster and the left/right propellers will slow down a little. This makes the quadcopter turn clockwise, while maintaining the same height.
Feel free to send me a link to any quadrocopter model not listed here.
The Caliber 30 is Equipped with a 2-step belt reduction system, which is successful CALIBER60 technology that realized high efficiency drive, and reducing mechanical noise and vibration. It exceeded the flight performance in 30-class GP Helicopters. EMS and MMS are available by changing the included servo plate. No extra costs necessary. The Caliber 30 is also able to change position of the Main Rotor Grip for more comfortable machine performance and the Direct Rudder Control allows 180-degree Auto-Rotation.
Moskito XXL is a heavy 50 class helicopter built with the technology of 1994, too expensive, difficult to maintain, it is no more sold since 2000...
From the drawing board of world famous Shegitada Taya and the ultra-modern manufacturing facility of Thunder Tiger Corporation comes the big brother to the Raptor 30, the Raptor 60.
Provide the entry-level helicopter pilot a stable learning platform while satisfying what the 3D pilots asked for. The rapid cyclic response makes it possible for the 3D pilot to execute crisp maneuvers like the Tic-Toc, Chaos, Death Spirals, and even more...
The Raptor 50 is nothing more than a modified and upgraded Raptor 30. It was created to reduce the gap between the inexpensive Raptor 30 and the larger Raptor 60 while staying affordable...
Thunder Tiger eRaptor
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