tick tock tipms topms

[Evan]

5a. I object to absolute statements
5b. ESEPECIALLY when YOUR way is the ONLY way to fix human factors.

Let me know when you spot the irony there.

[3WE]

Let me know when you spot the irony there.

Indeed, one little fat finger f-up on your beloved touch screen airplane and the plane may do wrong.

Cue the fundamental that you almost always have your hands by a 'direct' control.

[Gabriel]

The clock is still ticking: tic, toc, tipms, topms. It is a matter of time until we have the NEXT deaths.

http://avherald.com/h?article=4cb53df5&opt=0

[Evan]

The clock is still ticking: tic, toc, tipms, topms. It is a matter of time until we have the NEXT deaths.

If we are going to use technological solutions, we also need planes to weigh themselves and enter that data automatically (or at least the flag a conflicting pilot entry).

[ATLcrew]

If we are going to use technological solutions, we also need planes to weigh themselves and enter that data automatically (or at least the flag a conflicting pilot entry).

A320 family does that. At least the ones we have do.

[Gabriel]

If we are going to use technological solutions, we also need planes to weigh themselves and enter that data automatically (or at least the flag a conflicting pilot entry).

First of all, no we don't. You need to compare the actual acceleration with the acceleration used internally to compute the take-off performance.
Second, you can have the plane weight itself without adding any hardware. The FADEC knows the thrust the engines are producing given the engine parameters and environmental factors like static pressure and temperature. In the beginning of the take-off roll, where drag is negligible, thrust/acceleration=mass.

[Evan]

First of all, no we don't. You need to compare the actual acceleration with the acceleration used internally to compute the take-off performance.
Second, you can have the plane weight itself without adding any hardware. The FADEC knows the thrust the engines are producing given the engine parameters and environmental factors like static pressure and temperature. In the beginning of the take-off roll, where drag is negligible, thrust/acceleration=mass.

I'm sorry, I meant we also need planes to weigh themselves to prevent (or at least flag) these data entry errors, not that we need them to do that in order for TOPMS to work.

The mass calculation method is interesting. If it works it could extend that function to antique airframes like the 737.

[3WE]

The more I think about this- I am not sure how to get around a math error (yeah, sure, make auto weighing/auto everything, since MCAS works so awesome).

Double check all you want, but if a math error is made, the TOPMS is going to be telling you that a not_OK takeoff is fine.

And any human double-checking thing is going to be affected by the same math error.

[Gabriel]

The more I think about this- I am not sure how to get around a math error (yeah, sure, make auto weighing/auto everything, since MCAS works so awesome).

Double check all you want, but if a math error is made, the TOPMS is going to be telling you that a not_OK takeoff is fine.

And any human double-checking thing is going to be affected by the same math error.

I don't follow you. What kind of math error do you have in mind? For example?

[3WE]

I don't follow you. What kind of math error do you have in mind? For example?

Don't got over nit-picky black and white.

On rare occasions, we are taking out lights and walls and stuff. This comes from errors. Math errors, or brain farts, or bad data supply, whatever- the crews try to take off with inadequate power.

So, the same error, brain fart or bad data goes into your TOPMS system...OK...Maybe I have a brain fart…The TOPS will note that the plane is not speeding up like it should.