This page represents the FAA TCDS 3A19 utility-category landplane configuration. Enter the current basic empty weight and arm from the certified weight and balance record for the individual aircraft.
Maximum weight: 1,600 lbs. Usable fuel: 22.5 US gal. Fuel arm: 42 in.
| Specification | Value |
|---|---|
| Maximum weight | 1,600 lbs |
| Forward CG at 1,280 lbs or less | 31.5 in |
| Forward CG at maximum weight | 32.9 in |
| Aft CG limit | 37.5 in |
| Usable fuel | 22.5 US gal |
| Fuel arm | 42 in |
| Certification source | FAA Type Certificate Data Sheet 3A19 |
| Aircraft weight | Forward CG limit | Aft CG limit |
|---|---|---|
| 1,280 lbs or less | 31.5 in | 37.5 in |
| 1,600 lbs | 32.9 in | 37.5 in |
The calculator uses straight-line interpolation between published forward-CG breakpoints.
| Station | Arm | Limit |
|---|---|---|
| Pilot and passenger | 39 in | |
| Baggage | Enter actual arm from aircraft loading data | 120 lbs |
| Fuel | 42 in | 22.5 US gal usable |
Baggage arm: the certification source gives a weight limit but does not prescribe one universal arm for all loading configurations. Enter the applicable arm from the aircraft's approved loading data.
The calculator uses 22.5 US gallons usable at an arm of 42 inches. At 6 lb per US gallon, full usable fuel weighs 135 lbs.
WBcalc intentionally does not prefill a generic empty weight or empty CG. Use the current certified values for the individual airplane.
The Cessna 150J calculator on this page is model-specific. It uses the loading limits stored for this aircraft configuration rather than applying a generic set of limits to the whole Cessna family.
The maximum takeoff weight represented by this calculator is 1,600 lb. Total loaded weight must be checked separately from center of gravity because an aircraft can be below maximum weight and still be outside its approved CG envelope.
For the configuration represented here, the forward CG limit is 31.5 inches at 1,280 lb and reaches 32.9 inches at 1,600 lb. The aft CG data represented by the calculator runs from 37.5 inches at 1,280 lb to 37.5 inches at 1,600 lb. Where a limit changes between published weight points, WBcalc uses straight-line interpolation between the stored breakpoints.
A calculated loading must satisfy both the forward and aft CG limits. Being below maximum aircraft weight does not by itself mean that the loading is acceptable.
This calculator represents up to 22.5 US gallons of usable fuel at a fuel arm of 42 inches. The calculation uses a fuel weight of 6 lb per US gallon. Fuel contributes both weight and moment, so changing fuel quantity can change both total aircraft weight and loaded CG.
Passenger, baggage and other loads must be applied at the correct loading stations. The calculator uses the following station data for the represented configuration:
Pilot and passenger is represented at an arm of 39 inches.
Baggage requires the applicable arm to be entered from the aircraft loading documentation.
Start with the current basic empty weight and basic empty arm from the weight and balance record for the individual aircraft. Do not assume that the empty weight of another aircraft of the same model is correct for the airplane being loaded.
Next enter the actual occupants, baggage and usable fuel for the planned flight. If the calculator provides an adjustable arm field, enter the applicable loading position from the approved aircraft loading information. Then calculate the total loaded weight and center of gravity and compare the result with the limits shown by WBcalc.
Use the current certified basic empty weight and empty CG or arm for the individual airplane. Empty-weight data can change when avionics, interior equipment, paint, repairs, optional equipment or approved modifications are added or removed. A generic model value is therefore not a substitute for the current aircraft weight and balance record.
The datum represented by this calculator is: Fuselage station 0.0, front face of firewall. Arms and center-of-gravity positions are measured relative to the applicable aircraft datum.
Other Cessna aircraft calculators available on WBcalc include Cessna 150, Cessna 150A, Cessna 150B, Cessna 150C, Cessna 150D, Cessna 150E, Cessna 150F, Cessna 150G. Use the exact model and configuration that applies to the aircraft being loaded.
The calculator on this page represents a maximum takeoff weight of 1,600 lb. Confirm that this weight applies to the serial number, configuration and approved modifications of the individual aircraft.
The configuration represented by this page uses up to 22.5 US gallons of usable fuel. The applicable fuel system should always be verified against the aircraft POH or AFM and installed configuration.
Because basic empty weight and empty arm belong to the individual aircraft. WBcalc avoids presenting a generic value as though it were the current certified value for every Cessna 150J.
Yes. Maximum weight and center of gravity are separate limitations. A loading can remain below maximum weight while the CG is too far forward or too far aft.
No. WBcalc is a planning and calculation aid. The approved POH or AFM, current aircraft weight and balance record, equipment list, supplements and other applicable approved documents remain authoritative.
The aircraft data stored on this page identifies the source as FAA Type Certificate Data Sheet 3A19. Always verify that the represented configuration applies to the individual aircraft, including serial-number applicability, supplements and approved modifications.
Primary source: FAA Type Certificate Data Sheet 3A19. For Model 150J, TCDS 3A19 specifies 1,600 lb maximum weight, two seats at +39, 120 lb maximum baggage, and 22.5 US gal usable fuel at +42. The baggage arm must come from the applicable aircraft loading data.
Serial-number differences, approved modifications, STCs, floats, supplements or equipment changes can alter applicable data. Confirm the page against the documents for the individual aircraft before flight.
WBcalc is a planning aid, not a substitute for the approved POH/AFM, current weight and balance record, equipment list or supplements.
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