MOONEY
M20TN - MODEL TYPE-S
SECTION VI
WEIGHT AND BALANCE
6 -- 7
AIRPLANE FLIGHT MANUAL
ORIGINAL ISSUE -- 04-02-2008
PILOT’S LOADING GUIDE
LOADING CALCULATION PROCEDURE
Proper loading of the aircraft is essential for maximum flight performance and safety. This
section will assist you in determining whether the aircraft loading schedule is within the approved
weight and center--of--gravity limits.
To figure an actual loading problem for your aircraft, proceed as follows:
Step 1.
Refer to the latest entry on page 6--6 for the current empty weight and moment.
NOTE:
Since the engine oil is normally kept at the full level, the oil weight and moment is
included in basic empty weight and is constant in calculating all loading prob-
lems.
Step 2.
Note the pilot’s weight and the position his seat will occupy in flight. Find this weight on
the left scale of the Loading Computation Form (page 6--9) and cross the graph horizontally to
the graph for #1 and #2 seats. When this point is located, drop down to the bottom scale to find
the value of the moment/1000 due to the pilot’s weight and seat position.
Repeat procedure for co--pilot and enter these weights and moment/1000 values in the proper
sub--columns in the Problem Form on page 6--8/9.
Step 3.
Proceed as in Step 2 to account for the passengers in seats 3 and 4. Enter the weight and
value of moment/1000 in the proper columns.
Step 4.
Again proceed as in Step 2 to account for the amount of fuel carried, and enter the weight
and moment/1000 values in the proper columns.
Step 5.
Once more proceed as in Step 2 to account for the baggage to be carried and enter the
figures in the proper columns.
Step 6.
Total the weight columns. This total must be 3368 Pounds (1528 Kg) or less. Total the
Moment/1000 column.
DO NOT FORGET TO SUBTRACT NEGATIVE NUMBERS.
Step 7.
Refer to the Center--of--Gravity Moment Envelope (page 6--10). Locate the loaded
weight of your airplane on the left scale of the graph and trace a line horizontally to the right.
Locate the total moment/1000 value for your airplane on the bottom scale of the graph and trace
a line vertically above this point until the horizontal line for weight is intersected. If the point of
intersection is within the shaded area, your aircraft loading is acceptable. If the point of intersec-
tion falls outside the shaded area, you must rearrange the load before take off.
