Interrupted T/O ?

[bafanguy]

Maybe I'm the last person on earth to see this video but I'm too lazy to search for a previous explanation here.

What's the deal with this T/O ? The video appears to be edited (maybe for time ?) @ ~45 seconds so it's hard to tell how long the airplane sat at the stop point before continuing.


https://www.youtube.com/watch?v=JZt5-E2m3Dg

[RAT 5]

Curious. During the RTO there does not appear to be any use of TR's or spoilers/airbrakes??

[Carbon Bootprint]

From the comments on the YouTube site (no idea of veracity):

This was a training flight with no passengers onboard so it was very light - therefore no hot brakes problem and it doesn't take very long to rotate. they would have calculated all that when they planned the flight at dispatch. The speed they would probably do this is about the cross check speed - 80 kts for Boeings.

[bafanguy]

From the comments on the YouTube site (no idea of veracity):

Ah so...didn't read far enough into the comments to see the explanation.

So, they still roll out an airplane to do training bounces ?

[davidjpowell]

From the comments on the YouTube site (no idea of veracity):

I'm calling Bull on that. How could they have calculated where they were going to stop, and how much runway would be remaining prior to stopping....

And how they would have recalculated their performance figures while stopped at an unknown distance on the runway.

[bafanguy]

Until someone from CX wades in with facts we're just the Blind Men and the Elephant. It's interesting but probably has a rather mundane explanation.

So, they still roll out an airplane to do training bounces ? :-)))

[DaveReidUK]

And how they would have recalculated their performance figures while stopped at an unknown distance on the runway.

They stopped at an intersection, so the remaining TORA/TODA will have been easily determined.

[FlightDetent]

Easily calculated if pre-planned, as a training scenario. The purpouse or benefit of such excericse - it would be interesting to learn about.