Cirrus SR20 Specifications download pdf (Page 170)

6-8 P/N 11934-004

Section 6 Cirrus Design

Weight and Balance Data SR20

Loading Instructions

It is the responsibility of the pilot to ensure that the airplane is properly

loaded and operated within the prescribed weight and center of gravity

limits. The following information enables the pilot to calculate the total

weight and moment for the loading. The calculated moment is then

compared to the Moment Limits chart or table (Figure 6-5) for a

determination of proper loading.

Airplane loading determinations are calculated using the Weight &

Balance Loading Form (Figure 6-3), the Loading Data chart and table

(Figure 6-4), and the Moment Limits chart and table (Figure 6-5).

1. Basic Empty Weight – Enter the current Basic Empty Weight and

Moment from the Weight & Balance Record (Figure 6-6).

2. Front Seat Occupants – Enter the total weight and moment/1000

for the front seat occupants from the Loading Data (Figure 6-4).

3. Rear Seat Occupants – Enter the total weight and moment/1000

for the rear seat occupants from the Loading Data (Figure 6-4).

4. Baggage – Enter weight and moment for the baggage from the

Loading Data (Figure 6-4).

• If desired, subtotal the weights and moment/1000 from steps 1

through 4. This is the Zero Fuel Condition. It includes all useful

load items excluding fuel.

5. Fuel Loading – Enter the weight and moment of usable fuel

loaded on the airplane from the Loading Data (Figure 6-4).

• Subtotal the weight and moment/1000. This is the Ramp

Condition or the weight and moment of the aircraft before taxi.

6. Fuel for start, taxi, and run-up – This value is pre-entered on the

form. Normally, fuel used for start, taxi, and run-up is

approximately 9 pounds at an average moment/1000 of 1.394.

7. Takeoff Condition – Subtract the weight and moment/1000 for

step 8 (start, taxi, and run-up) from the Ramp Condition values

(step 7) to determine the Takeoff Condition weight and moment/

1000.

• The total weight at takeoff must not exceed the maximum weight

limit of 3050 pounds. The total moment/1000 must not be above

the maximum or below the minimum moment/1000 for the

Takeoff Condition Weight as determined from the Moment Limits

chart or table (Figure 6-5).

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Cirrus SR20 Specifications Page 170