It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Analogue
The fly-by-wire flight control system eliminates the complexity, fragility and weight of the mechanical circuit of the hydromechanical flight control systems and replaces it with an electrical circuit. The cockpit controls now operate signal transducers which generate the appropriate commands. The commands are processed by an electronic controller. The autopilot is now part of the electronic controller.
The hydraulic circuits are similar except that mechanical servo valves are replaced with electrically controlled servo valves. The valves are operated by the electronic controller. This is the simplest and earliest configuration, an analog fly-by-wire flight control systems, first fitted to the Avro Vulcan in the 1950s.
In this configuration, the flight control systems must simulate "feel". The electronic controller controls electrical feel devices that provide the appropriate "feel" forces on the manual controls. This is still used in the Embraer E-Jets family of aircraft and was used in Concorde, the first fly-by-wire airliner.
On more sophisticated versions, analog computers replaced the electronic controller. The cancelled supersonic Canadian fighter, the Avro CF-105 Arrow, was built this way in the 1950s. Analog computers also allowed some customization of flight control characteristics, including relaxed stability. This was exploited by the early versions of F-16, giving it impressive maneuverability.
Digital
A digital fly-by-wire flight control system is similar to its analog counterpart. However, the signal processing is done by digital computers. The pilot literally can "fly-via-computer". This increases flexibility as the digital computers can receive input from any aircraft sensor. It also increases electronic stability, because the system is less dependent on the values of critical electrical components in an analog controller.
F-8C Crusader digital fly-by-wire testbed.
The Airbus A320, first airliner with digital fly-by-wire controls
The Dassault Falcon 7X, first business jet with digital fly-by-wire controlsThe computers read positions and forces from the pilot's controls and aircraft sensors. They solve differential equations that move the flight controls to carry out the intentions of the pilot.
The program in the digital computers let aircraft designers tailor an aircraft's handling characteristics precisely, within the overall limits of what is possible with the aerodynamics and structure of the aircraft. For example, the software can prevent the aircraft from being handled dangerously by preventing pilots from exceeding preset limits (the aircraft's envelope) such as the stall, spin or limiting G. Software can also be used to filter control inputs to avoid pilot-induced oscillation.
An unmanned aerial vehicle (UAV) is an aircraft with no on-board pilot. UAVs can be remote controlled or fly autonomously based on pre-programmed flight plans or more complex dynamic automation systems. UAVs are currently used in a number of military roles, including reconnaissance and attack. They are also used in a small but growing number of civil applications such as firefighting where a human observer would be at risk, police observation of civil disturbances and scenes of crimes, and reconnaissance support in natural disasters.
There are a wide variety UAV shapes, sizes, configurations, and characteristics. For the purposes of this article, and to distinguish UAVs from missiles, a UAV is defined as being capable of controlled, sustained level flight and powered by a jet or reciprocating engine. Cruise missiles are not classed as UAVs, because, like many other guided missiles, the vehicle itself is a weapon that is not reused even though it is also unmanned and might in some cases be remotely guided.
The acronym UAV has been expanded in some cases to UAVS (Unmanned Aircraft Vehicle System). The Federal Aviation Administration has adopted the generic class Unmanned Aircraft System (UAS) originally introduced by the U.S. Navy to reflect the fact that these are not just aircraft, but systems including ground stations and other elements.
Originally posted by bovarcher
Where is your evidence for this claim please? I never saw any.
Originally posted by tenplusone
The wings did not slice through like butter, the nose of the jet did.
If you watch the videos, you can clearly see the perfectly in tact nose of the jet pass through the entire WTC.
Also, it is a FACT that every single footage known to the population has been in the hands of FBI. The very second someone tries to show a NEW video about 9/11, the FBI confiscates it. Don't believe me? RESEARCH!!!
Originally posted by bovarcher
Because something is technically possible is not evidence that it was done. It's just an opinion, unsubstantiated by any evidence. If I missed the evidence, please be gracious enough to direct me to it.
Originally posted by Wizard_In_The_Woods
Dear PepeLapew:
Bonjour!
Your newly posted thread is indeed very well written and well researched. Naturally, now comes my big objection however. You actually addressed an important point why there were no planes on 9-11. You just view it in the opposite way. Exactly because every Tom, Dick and Harry had cameras pointing at the twin towers, there should be loads of footage showing UA175 hitting the WTC-2. But guess what, there aren’t. There is not a single ‘independent’ image to be found, anywhere. ALL stills and films of UA175 are cut from the same mold reeking of (lousy) CGI trickery.
I’ve typed this so many times, my fingers are hurting. All the civilians filming that day, recorded nothing relating to airplanes.
And since all the TV feeds showed Boeings, they either just scratched their heads and said ‘oh-well’ to themselves, ‘we must have missed the shot.’ Or their work is being condemned as ‘uninteresting’ and ‘irrelevant’ because it doesn’t show what everyone wants to see, the planes!
Originally posted by bovarcher
reply to post by PepeLapew
OK Pepe, I read it. Interesting idea, if true.
I look forward to some evidence in due course, if you can uncover it.
Because something might be possible, or there might be suggested circumstantial involvement, does not make it true.
You seem to be suggesting that Raytheon deliberately conspired to murder several of its top employees on 9/11. Have I understood this correctly? If not, please enlighten me.
So the best of luck. I do not believe conspiracy theories unless I can see a bit of irrefutable evidence. Just a small, eensy-weensy bit would be good, for a start
The fly-by-wire flight control system eliminates the complexity, fragility and weight of the mechanical circuit of the hydromechanical flight control systems and replaces it with an electrical circuit.
Originally posted by ipsedixit
Shouldn't the heavy black arrows be reversed? The main strength of the wing supports the aircraft in the air. It isn't used to slice through the air.
Originally posted by PepeLapew
Show me just one example of the FBI confiscating some videos from amateurs or pros. Of course you would have to show me that they were ALL confiscated but I am going to ask you to show me just one example .... and keep in mind that WebFairy or Killtown are not reliable sources.