The Impossibility of Flying Heavy Aircraft Without Training

Originally posted by Pilgrum
The idea of remote control comes up every so often but the duplex telemetry rate required for accuracy at those speeds possibly doesn't exist. It would need line of sight microwave comms at the very least and I didn't notice any dishes on the planes.

So it still looks the people alleged to have done it actually did do it

UAVs use local ground people to taxi, takeoff and land them with radio control. Once they are in the air the controls are transferred to satellite links and are then control all the way back here in the states.
Newer auto pilots can do everything and even land the plane. The flight paths though are way to erratic for the auto pilot or radio controlled through the auto pilot.

Most auto pilots allow a max of 30% bank and many only 20%, and all basically hold the heading alt, and airspeed spot on. When you are low to the ground the auto pilot would need to be able to use the radar altimeter or you run into the problem of not having the correct altimeter setting.

Originally posted by Pilgrum
reply to post by Wing-nut

 

That's it in a nutshell alright

However you left out the vacuum lift generating device

(j/k)
Take-offs are optional but all landings remain mandatory as they say.

Would an autopilot be capable of making the observed maneuvers with the precision required?
As far as I know, they're limited to very conservative changes and maintaining altitude, speed and bearing. The idea of remote control comes up every so often but the duplex telemetry rate required for accuracy at those speeds possibly doesn't exist. It would need line of sight microwave comms at the very least and I didn't notice any dishes on the planes.

So it still looks the people alleged to have done it actually did do it

Well the airfoil is a vacuum generating device!
The low pressure area is generated on top of the wing with a high pressure on the bottom of the wing.

AAAHHHH yes the old what goes up must come down, But any landing you can walk away from is a good one!

No microwave dishes required.
In the early 1980's the U.S. Army built the first microwave landing system.
The test bed was first built into a UH-1C model Huey. The other half was
a back pack unit that a ground pounder would take to some remote location.
Once airborne the units would be turned on and the helicopter would fly to within one foot of the back pack unit. This unit was later on installed on to the
STS-1 for landing tests. There were no microwave dishes involved in this project.

HHHMMM STS-1 what is that you ask why its the first spaceship to called Enterprise.

And yes I do have a mission patch with my name on it!

Yes they might have actually done it!

Originally posted by Xtrozero

Originally posted by shug7272
reply to [

 

If highjacking a plane with little to no piloting experience and flying it into a target were so easy, why has it not been done (save 911) in the century or so of manned flight?
And if your gonna tell me "well it wasnt easy"... they sure made it look easy.

Same reason we didn't see 100s of suicide bombers in the past. Most did not do these kinds of things with the intent to commit suicide. Also they were 75% successful so not so easy...

We can also say the same thing about IEDs for they are another intelligent invention of a totally different direction than what we have seen in the past.

75% is pretty damn successful. Hell we have a lower success rate than that regarding simple medical procedures. They were 75% successful because the passengers forced them to ground the plane.. right? So that really doesnt play into it at all. If it were up to our Gov it would appear it would have been 100% success judging on how they handled they others.

As far as your other point, unless you can show me at what time "terrorists" decided killing themselves was good, I will assume they never cared for their own lives much. So please give me a link to your info showing in what time period terrorists decided that not dying along with the victims was no longer a good idea. Otherwise your point is moot.

Kamikaze anyone? That was a good while back. Seems the idea has been around and used for a little longer than you let on. But then again those are TRAINED pilots and they frequently missed didnt they... Yea they did.