How to determine a quantity that is weight restricted...

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I have a calculated weight <B11>(given). I need to determine the max amount
of fuel ( ? )that can be loaded to satisfy a landing weight restriction
<I8>(given) knowing the consumption <H11> (given) for a specific period of
time.
Basically, I want to know the maximum amount of fuel in lbs that I can put
into an aircraft, to fly a short flight, and not land above the maximum
landing weight of the aircraft.
<B11> ... AC Min ZFW lbs ( 14343 )
<L8> ..... AC Max Fuel lbs ( 6790 )
<I8> .... AC Max Landing Weight lbs ( 18700 )
<H8> ... AC Max Take-Off Weight lbs ( 20000 )
<H11> .. Fuel Consumption lbs ( 700 )
Click to expand...

Hope this makes sence.... Thanks
 
I think you're leaving something out ... like the length of the flight.

If you're *only* going to fly long enough to consume that 700 lbs. of fuel,
then simply subtract the weight of the plane (B11), from the maximum
allowable landing weight (I8), to determine the maximum fuel to be loaded
(4357 lbs.), which is well below the maximum allowable take off weight
(20000 lbs.).

Am I missing something, or are you missing a variable (like flight length or
time).
--

Regards,

RD
--------------------------------------------------------------------
Please keep all correspondence within the Group, so all may benefit !
--------------------------------------------------------------------

I have a calculated weight <B11>(given). I need to determine the max amount
of fuel ( ? )that can be loaded to satisfy a landing weight restriction
<I8>(given) knowing the consumption <H11> (given) for a specific period of
time.
Basically, I want to know the maximum amount of fuel in lbs that I can put
into an aircraft, to fly a short flight, and not land above the maximum
landing weight of the aircraft.
<B11> ... AC Min ZFW lbs ( 14343 )
<L8> ..... AC Max Fuel lbs ( 6790 )
<I8> .... AC Max Landing Weight lbs ( 18700 )
<H8> ... AC Max Take-Off Weight lbs ( 20000 )
<H11> .. Fuel Consumption lbs ( 700 )
Click to expand...

Hope this makes sence.... Thanks
 
RD
First off, Thanks for the Interest! I am truly grateful!
I know that the Fuel consumed for this time period will be 700 pounds. I
want to know the Max Fuel that I can load to fly this mission ( 700 lbs) and
still be under my max landing weight of 18700 lbs. The results of the
calculation would be the following;
<B11> .... 14343 lbs AC loaded weight
<B12> .... 19343 lbs AC Loaded weight with Max Allowable fuel in respect of Max Landing weight.
<B13> .... 5000 lbs MAX Allowable fuel to allow this mission.
Click to expand...

Short of this, I could send you a portion of this matrix for your evaluation!

Again, thanks for the input!

.... Kane
 
Does this make sense to you?

Max take-off weight = 20000 lbs. = H8

Minus plane and cargo lbs. = 14343 = B11

Equals Max fuel possible to *take-off* = H8-B11

Difference between T/O wt. and Land wt = H8-I8 = 1300 lbs.

SO - fuel must deplete by 1300 lbs during mission (H8-I8)

OR - fuel to be depleted (H8-I8) minus fuel consumed (H11) = fuel subtracted
from max fuel allowable at T/O (H8-B11)-(H8-I8-h11)

Therefore, try this in B13:

=(H8-B11)-(H8-I8-H11)
--

HTH,

RD
==============================================
Please keep all correspondence within the Group, so all may benefit!
==============================================


RD
First off, Thanks for the Interest! I am truly grateful!
I know that the Fuel consumed for this time period will be 700 pounds. I
want to know the Max Fuel that I can load to fly this mission ( 700 lbs) and
still be under my max landing weight of 18700 lbs. The results of the
calculation would be the following;
<B11> .... 14343 lbs AC loaded weight
<B12> .... 19343 lbs AC Loaded weight with Max Allowable fuel in respect of Max Landing weight.
<B13> .... 5000 lbs MAX Allowable fuel to allow this mission.
Click to expand...

Short of this, I could send you a portion of this matrix for your
evaluation!

Again, thanks for the input!

.... Kane
 
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