User manual

Part B Section 6.1
Stichting Catalina PH-PBY Rev No: 00
18 May, 2004 Page: 3
06 GENERAL INFORMATION
MAC or Mean Aerodynamic Chord 165.3 ins
Leading Edge of MAC 204.39 ins aft
Formula for % MAC (CofGArm -204.39) X 100
165.3
C of G in ins Total Moment
Total Weight
Index Formula 70 - Wgt (258 -Arm)
10, 000
70 - xxxx(258-xxxx)
10,000
=xxxx
Gear Extraction +12,485 in Ibs
07 METHOD OF COMPUTATION
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Enter aircraft details for PBY
Enter Pax numbers, weights, and positions
Enter cargo weights and positions
Total the compartment weights
Enter fuel volume and weight
Enter oil volume and weight
Add weights to obtain Ramp weight
Use 100lbs (45kg) fuel burn off for Taxi and Run Up
Obtain Take Off Weight
Subtract calculated flight burn off = Landing weight
Enter top of graph at index (xxxx for PH-PBY)
Move down graph compartment by compartment moving curser by
the relative amounts
At final curser position move vertically to intercept Aircraft TOW to
obtain take-off C of G
Subtract fuel and oil burned. Move curser vertically to obtain
landing C of G