This calculator represents the normal-category landplane loading data for the Cessna 172L from the FAA Type Certificate Data Sheet. Enter the current basic empty weight and arm from the weight and balance record for the individual aircraft.
Maximum weight: 2,300 lbs. Usable fuel: 38 US gal. Fuel arm: 48 in.
| Specification | Value |
|---|---|
| Maximum weight | 2,300 lbs |
| Forward CG at 1,950 lbs or less | 35 in |
| Forward CG at 2,300 lbs | 38.5 in |
| Aft CG limit | 47.3 in |
| Usable fuel | 38 US gal |
| Fuel arm | 48 in |
| Baggage | Maximum baggage: 120 lb at +95 in. |
| Certification source | FAA Type Certificate Data Sheet 3A12 |
| Aircraft weight | Forward CG limit | Aft CG limit |
|---|---|---|
| 1,950 lbs or less | 35 in | 47.3 in |
| 2,300 lbs | 38.5 in | 47.3 in |
The forward limit varies linearly between the published FAA TCDS breakpoints. The aft limit shown above is constant across the normal-category range represented here.
| Station | Arm | Limit |
|---|---|---|
| Pilot and front passenger | 34 to 46 in (adjustable) | |
| Rear passengers | 73 in | |
| Baggage | 95 in | 120 lbs |
| Fuel | 48 in | 38 US gal usable |
FAA TCDS 3A12 specifies the two front seats for this model within an approved longitudinal seat-position range rather than one fixed arm. WBcalc therefore asks for the actual front-seat arm instead of inventing a single value. Use the applicable loading information for the individual aircraft.
Fuel capacity used by this calculator: 38 US gal usable at +48 in. At the calculator's standard 6 lb per US gallon fuel weight, full usable fuel weighs 228 lbs.
Maximum baggage: 120 lb at +95 in.
WBcalc intentionally does not prefill a generic empty weight or empty CG for this page. Those values vary by individual aircraft and equipment configuration. Use the current certified weight and balance record for the airplane being loaded.
Primary source: FAA Type Certificate Data Sheet 3A12. This page represents FAA TCDS 3A12, Model 172L normal-category landplane; front seats +34 to +46 in.
Aircraft modifications, supplements, different serial-number configurations, floats, STCs or other approved changes can alter applicable limits. Confirm the data against the documents for the individual aircraft before flight.
WBcalc is a planning aid, not a substitute for an approved POH/AFM, current aircraft weight and balance record, equipment list or supplements.
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