Advantages of the Vector Method

 

SPEED

With a little practice, a weight and balance calculation can be done in about 10 to 20 seconds. It is even faster than calculators or laptop computers.

 

OBSERVABILITY

The pilot gets a picture of what is happening to his cg and weight as he adds payload. If the cg goes out of limits, it is a simple matter to determine the ballast required or what to move to get back onto the approved limits. Maximum zero fuel, landing, takeoff, and ramp weights are shown to insure compliance with those limits. CG travel is shown from takeoff to touchdown.

 

ACCURACY

No addition, division, or table reading errors. A line is simply drawn to the appropriate weight. Graphs are a full 8.5 x 11 inches, error is less than one quarter of one percent (in manual calculation, passengers and baggage weight estimates normally have an error of ten percent or more).

 

FLEXIBILITY

If a last minute passenger or bag appears, simply draw a new vector. There is no need to do the problem over again. For flights with substantial payload, the amount of fuel that can be carried automatically shows itself.

 

FUEL SAVINGS

The vector system allows the pilot to rapidly determine a loading near the aft limit; this yields faster climbs and cruises (as the cg moves aft, the download on the horizontal stabilizer decreases).

 

REPEATABILITY

The vectors can be added in any order, the answer will be the same. Student pilots can get a feel for weight and balance, rather than trying to understand an abstract mathematical concept.

 

SIMPLICITY

No addition or division required! If you can draw a line, you're done! FAA approved for part 91,121,125,135 and 141 operations.

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