UPS MD-11 crash at SDF

[DE727UPS]

They did say the bell started 37 secs after takeoff power was set. That's a LONG takeoff roll. Juan Brown ran a simulation at the same weight and it looks like it came on right after V1 (not sure what sim he used). But 37 seconds would take you past V1, even heavy, I would think.

 

[Autothrust Blue]

They did say the bell started 37 secs after takeoff power was set. That's a LONG takeoff roll. Juan Brown ran a simulation at the same weight and it looks like it came on right after V1 (not sure what sim he used). But 37 seconds would take you past V1, even heavy, I would think.

I’ve always sort of wished that time to V1 was a thing routinely calculated, as it is probably the most accurate way to measure degraded acceleration.

 

[scooter2525]

I’ve always sort of wished that time to V1 was a thing routinely calculated, as it is probably the most accurate way to measure degraded acceleration.

Take off thrust set, *hacks the clock*

 

[ahw01]

Take off thrust set, *hacks the clock*

Laughs in flex takeoff.

 

[H46Bubba]

Did UPS and FedEx ground their fleets before or after the Boeing advisory?

With an engine left resting on the side of runway, I’m surprised Boeing didn’t act immediately instead of increasing their liability. Have MD-11’s ever seen a Boeing MRO?

Boeing recommending D-checks on every MD-11 could be the final straw.

767 production was scheduled to end in 2027, it looks like new orders will keep the line open beyond 2027.

Technically it will also keep going on the KC-46 production line till the AF gets all their contract orders.

 

[scooter2525]

Laughs in flex takeoff.

MAN flex

 

[MikeD]

I’ve always sort of wished that time to V1 was a thing routinely calculated, as it is probably the most accurate way to measure degraded acceleration.

It used to be a thing back in the day of water injected turbojets. On the B-52 up through the G model, and on the A-model KC-135, the Navigator would hack a clock when the brakes were released from the static runup and the water injection was started. To know both if an abort was needed before V1 and to time out the expiration of the desalinized water tank onboard.

 

[Pilot Fighter]

Technically it will also keep going on the KC-46 production line till the AF gets all their contract orders.

Good catch. Just read KC-46 deliveries are scheduled into 2031.

 

[BlueMoon]

The found the FDR and CVR. I’m guessing the pylon being attached to the departed engine and something they saw in the initial FDR readout forced their hand to ground it.

 

[Autothrust Blue]

Laughs in flex takeoff.

I mean F = ma so you can do that math there too