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Forum: Tech Log

25th Apr 2015, 02:27

Replies: 19

Why does thrust rating affect Vr

Views: 5,762

Posted By JammedStab

Awesome. Special thanks to Intruder, Hans...

Awesome. Special thanks to Intruder, Hans Brinker, and FGD 135 for their knowledge and professionalism in their answers.

PPrune at its best as shown by these gentlemen.

Forum: Tech Log

19th Apr 2015, 21:15

Replies: 19

Why does thrust rating affect Vr

Views: 5,762

Posted By JammedStab

The computations I did were for a 13,000' long...

The computations I did were for a 13,000' long runway. They don't often get much longer than that.

Forum: Tech Log

19th Apr 2015, 02:11

Replies: 19

Why does thrust rating affect Vr

Views: 5,762

Posted By JammedStab

To follow up.... I did some FMC calculations...

To follow up....

I did some FMC calculations in Chicago the other day. For a takeoff weight of approximately 327 tons this is what the FMC showed as default speeds for runway 10L with no ATM:
...

Forum: Tech Log

6th Apr 2015, 00:30

Replies: 19

Why does thrust rating affect Vr

Views: 5,762

Posted By JammedStab

Why does thrust rating affect Vr

Our FMC appears to automatically calculate v-speeds for full takeoff thrust for an initial calculation. After using our computer to calculate v-speeds using TO2, I noticed that while V2 was within 1...

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