Page 653 - PPL-engelsk 2025

Flight performance and planning

To find each individual moment do this (point 3. Pilot and front seat pass. is

shown here):

Find the weight on the left

horizontal scale (here 375 lbs).

Go horizontally to the right

graph (here PILOT & FRONT

PASSENGER).

Go vertically down to the

bottom scale, where the value

for the moment is found.

The value of moment (which in this case is 14) is entered into our weight and

balance chart.
Weight and Balance Cessna 172 M

From weighing report 1482 LBS and 38 Inches behind datum
In the same way, the
Center of gravity calculation Weight Moment
other moments are (1 lbs = 0.454 kg) in LBS lb.ins/1000
1.Empty weight from weighing report 1482 56,3
found and entered. 2. Usable fuel 6 lbs/Gall 228 11
3. Pilot og front passenger 375 14
4. Rear passenger 220 16

5. *Baggage area 1 120 lbs max
All in all, we get a 6. *Baggage area 2 50 lbs max

total weight of 2305 7. Total weight and moment 2305 97,3
*Max combined bagage area 1 og 2 – 120 lbs
LBS. 2077 86,3

In the aircraft manual, Take Off Weight is stated at a maximum of 2300 LBS, so
our weight is 5 LBS too high.

But remember that we use 1.1 US/Gall. for taxi, corresponding to 6.6 LBS.

So, we are below the 2300 lbs at takeoff.

The small numbers under the columns indicate the weight and moment without

fuel.

Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 653