Simviation Forum - v1, v2, Vr calculation

Apr 4^th, 2004 at 6:52am

faztech Offline
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Let's Fly

Posts: 41

Guys,

I fly virtually Boeing 737-400.

How do u guys calculate V1, V2, Vr and approach speed (forgot V?) based on aircraft's weight? and how to determine until what degree to set the flap for take off (e.g flap 5 or 10)?

Jez want to have some realisme.

Thanx for yr concern

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Reply #1 - Apr 4^th, 2004 at 9:46am

BFMF Offline
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Pacific Northwest

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You might check in the FS Manuals & Checklists file section. I've downloaded a couple and they had speeds listed for a few things

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Reply #2 - Apr 4^th, 2004 at 11:42am

JBaymore Offline
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faztech,

You might look into some of the real pilot's software that is available for such tasks. I have a flight computer for my Palm handheald that does that kind of stuff for smaller planes.

What you really need is a stand alone flight computer program that would replace the usual one used on the real aircraft. Anyone know if there is such a beast available? ???

Not sure if the small program I have would work for an aircraft like the "heavy" you are talking about. You have to load a lot of info into the Palm database about load and balance points and such....... it might not have the capacity fior such a complex aircraft.

I will be interested in this answer too.

best,

.....................john

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Reply #3 - Apr 4^th, 2004 at 1:06pm

Billerator Offline
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Farnborough, UK

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Yeah I would be very greateful for a calculation sheet or method. (this is only for medium aircraft though)

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Reply #4 - Apr 5^th, 2004 at 4:45am

IanK Offline
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Posts: 124

Hello Bill!,
DL the FM from:
Aircraft Performance Data
http://perso.wanadoo.fr/hsors/FS_Soft/acftdata.html

Me again!

Ian

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Reply #5 - Apr 5^th, 2004 at 7:27am

JBaymore Offline
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hombuilt cockpit!

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Ian,

Thanks for the website reference.

Were you implying that there was a FM computer program there...... ot just the data stuff? All I could find was the data.... which was great.

best,

...................john

Intel i7 960 quad 3.2G LGA 1366, Asus P6X58D Premium, 750W Corsair, 6 gig 1600 DDR3, Spinpoint 1TB 7200 HD, Caviar 500G 7200 HD, GTX275 1280M, Logitec Z640, Win7 Pro 64b, CH Products yoke, pedals + throttle quad, simpit

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Reply #6 - Apr 5^th, 2004 at 11:18am

IanK Offline
Colonel
Honey, where'd you park
my Harrier?

Posts: 124

Quote:

Ian,

Thanks for the website reference.

Were you implying that there was a FM computer program there...... ot just the data stuff? All I could find was the data.... which was great.

best,

...................john

No just data from the airlines Flight Manual. Don't expect Boeing to send you any of their software!

I could write you a program, but it would just ask for the stall speed and multiply it by a 1.15 or 1.2 factor. Stall speed depends on weight, flap setting etc.

Ian

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Reply #7 - Apr 5^th, 2004 at 11:42am

Billerator Offline
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EGLF is my home town
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Wow, thanks Ian 8) .

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