Search found 6 matches

by Magman
Tue Jun 19, 2018 12:09 pm
Forum: Technical/Operations
Topic: Rotation Speeds....
Replies: 33
Views: 2325

Re: Rotation Speeds....

And, basing your product on data from an anonymous web forum is hardly authoritative. You will have to cite sources and A.net posting isn’t likely to impress. GF You are precisely right. That is why I am seeking out charts and performance data - to see if anyone knows where I may be able to access ...

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by Magman
Mon Jun 18, 2018 5:41 pm
Forum: Technical/Operations
Topic: Rotation Speeds....
Replies: 33
Views: 2325

Re: Rotation Speeds....

Pikachu, Thanks for all of your input. The purpose of my request is to improve some software. My company (http://www.aprconsultants.com) have mathematical models of several commercial aircraft. We simulate the aircraft performing a takeoff, landing etc on measured runway profile data to evaluate the...

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by Magman
Mon Jun 18, 2018 1:14 pm
Forum: Technical/Operations
Topic: Rotation Speeds....
Replies: 33
Views: 2325

Re: Rotation Speeds....

slcguy - thanks for that. I've done a good deal of searching on the internet and have seen lots of data, particularly of the 737, but I cannot find the specific Vr data that I need for standard day ops.

Thanks again,
magman

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by Magman
Mon Jun 18, 2018 1:12 pm
Forum: Technical/Operations
Topic: Rotation Speeds....
Replies: 33
Views: 2325

Re: Rotation Speeds....

As Woodreau said... it depends. What does it depend on? Take off weight, flap setting, pressure altitude, and ambient air temperature. Here are the speeds from the QRH for a B757-200. Flaps 1: V1 176 Vr 179 V2 184 Flaps 5: V1 161 Vr 165 V2 169 Flaps 15: V1 154 Vr 157 V2 160 Flaps 20: V1 145 Vr 148 ...

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by Magman
Mon Jun 18, 2018 12:40 pm
Forum: Technical/Operations
Topic: Rotation Speeds....
Replies: 33
Views: 2325

Re: Rotation Speeds....

To all, thanks for your responses. With respect to conditions; I need standard day conditions which means 59F, 29.92 Baro Pressure, no head wind however, the aircraft is at maximum takeoff weight (MTOW). The only variable that I cannot account for is flap settings. What I am hoping to get is a publi...

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by Magman
Fri Jun 15, 2018 6:29 pm
Forum: Technical/Operations
Topic: Rotation Speeds....
Replies: 33
Views: 2325

Rotation Speeds....

Looking for assistance in finding the VR values for the following aircraft: • 737-800 • 747-400 • 757-200 • 767-200 • 777-200LR • 777-300ER • MD-11 • MD-88 I need to find the charts (or a reply with someone with specific knowledge) of the VR speeds under standard day conditions at Max Takeoff Weight...

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