Date Posted: 2008-01-08 23:43:56.
Subject: boeing 737-700 stab value
Name: joker0
Message: aircraft type is Boeing 737-700.
there's no stabilizer trim setting in the aircraft weight and balance manual which i've got.

typical stabilizer trim setting is such as following
mac_range min max
stab_range min max

i want to calculate stab value for TOW mac.
is someone has clue how can i?

Date Posted: 2007-07-05 21:13:44.
Subject: loadsheet
Name: joker0
Message: I've got solution. It's in aircraft manual.
Need to combine two formulas.

Date Posted: 2007-06-13 05:09:46.
Subject: loadsheet
Name: joker0
Message: I got a clue.
I juz need H-arm in this formula. I've got other values from aircraft manual..
%MAC = ((H-arm-cg - H-arm-leading-age-of-MAC) / Length of MAC) * 100
but, i haven't finish reading munual.. i've had two manual books now for two aircraft type.

Date Posted: 2007-06-10 22:18:08.
Subject: loadsheet
Name: joker0
Message:
no, i can't use that site as need to pay. it's not free.
i can't get solve till now.
i m thinking about reverse engineering now.
to get a formula from trim chart.
not try to know how to draw that trim chart by which numbers. but, try to know how can i get formula by looking that trim chart.
i still would love to get help from someone who good at aircraft engineer.
almost of load master don't know how to draw that trim. they juz know how to put point(LIZFW, LITOW) on already existence trim chart. i think, aircraft engineer more know about my case than load master.

Date Posted: 2007-06-03 21:14:29.
Subject: loadsheet
Name: joker0
Message: Thanks oxusaf

Date Posted: 2007-05-31 20:59:33.
Subject: loadsheet
Name: joker0
Message:
thz 4 your suggest..
so, is there any an experianced loadmaster here?

thanks in advance..

Date Posted: 2007-05-30 21:32:54.
Subject: loadsheet
Name: joker0
Message: %MAC = ((H-arm-cg - H-arm-leading-age-of-MAC) / Length of MAC) * 100
I found this formula in airbus's weight and balance book.
ႈIs there anyone can explain about this mac formula?
Or, is there another formula?
How can I calculate %mac by weight and index?
What other constant values are needed in that formula?

This is another one from eloadsheet.net(computerized loadsheet calculator).
This is a js function.
function CalcMac(fIndex, lnWeight){
return MyRound((((fIndex-50) * 300000 / lnWeight + 1323.6 - 1258) / 327.8) * 100 );
}
If you don't know programming, plz juz point me out about values except fIndex and lnWeight.

I can calculate mac in manual system with trim chart.
But, I don't know how can I calculate without trim chart.
How can I get mac by calculating formula without trim chart?

Thanks in advance..