WBcalc | Piper calculators | Aircraft calculators
This calculator is for the Piper PA-28-161 Warrior II at a maximum weight of 2,325 lbs. Enter the current empty weight and empty arm from the weight and balance record for the individual aircraft.
Maximum takeoff weight: 2,325 lbs. Maximum landing weight: 2,325 lbs. Usable fuel: 48 US gal.
The maximum takeoff weight used by this calculator is 2,325 lbs. The aft CG limit is 93.0 inches. The forward CG limit changes with aircraft weight.
| Aircraft weight | Forward CG limit | Aft CG limit |
|---|---|---|
| 1,950 lbs or less | 83.0 in | 93.0 in |
| 2,325 lbs | 87.0 in | 93.0 in |
Between 1,950 and 2,325 lbs, the forward limit runs from 83.0 to 87.0 inches. The calculator uses linear interpolation between those points.
| Station | Arm |
|---|---|
| Pilot and front passenger | 80.5 in |
| Rear passengers | 118.1 in |
| Baggage | 142.8 in |
| Fuel | 95.0 in |
The usable fuel quantity used by this calculator is 48 US gallons. At 6 lbs per gallon, 48 gallons weighs 288 lbs.
Fuel is calculated at an arm of 95.0 inches. Enter the actual fuel quantity aboard.
The front seat arm is 80.5 inches. The rear seat arm is 118.1 inches. Rear seat loading therefore has a greater aft effect on CG than the same weight in the front seats.
The baggage station is 142.8 inches aft of datum. The baggage limit used by this calculator is 200 lbs.
The default empty weight is only a starting value. Use the current empty weight and empty arm from the aircraft weight and balance record.
Avionics, repairs, paint, interior changes and other installed equipment can change both values.
The maximum weight and CG data on this page are based on FAA Type Certificate Data Sheet 2A13 for the PA-28-161 configuration represented by this calculator.
Other PA-28 variants can have different limits and loading data. Use the documentation applicable to the exact aircraft.
WBcalc is a planning aid. Check the current POH, aircraft weight and balance record, equipment list and applicable supplements before flight.
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