Cessna 150L Model Reference

Generation and Certification

The propeller applications and handbook families also vary within the L-series context. Keep the year and configuration conditions with each row. For owners comparing two 150L aircraft, the same official model does not establish identical equipment, dimensions or publication applicability. The serial and records are needed to resolve the detailed comparison.

The 150L spans 1971-1974 and marks the tubular-main-gear phase in the chronology. It therefore needs more than a single annual specification. The published length changes from 23 ft 3 in in 1971 to 23 ft 9 in in later L-year summaries, while height descriptions also change. These entries should remain year-qualified rather than averaged into one dimension. The standard model stays in the 1,600-lb Utility category. The simultaneous A150L and Reims L identities are comparisons, not alternative names for the same certification record.

Serial Numbers and Production

For 150L, the ordinary source assignments are 1971: 15072004 through 15072628; 1972: 15072629 through 15073658; 1973: 15073659 through 15074850; 1974: 15074851 through 15075781. The serial guide retains source conflicts and exceptional identities alongside these intervals.

Engine, Propeller and Equipment Changes

Four narrower changes appear in the L-series evidence: a dual-detent inside door handle from 15073080, a 125-W flasher bulb from 15074397, a steel-flange nose wheel from 15074404 and a steel-flange main wheel from 15074510. The source's year column and serial effectivity should both remain visible; the serial trigger is the component-research boundary. These changes involve different assemblies and should not be collapsed into a single assumed upgrade package. An early and a late L can therefore pose different cabin, electrical and wheel-parts questions while sharing the same official model.

The 150L factory installation groups specify 1971: O-200-A, 100 hp at 2750 RPM; 1972: O-200-A, 100 hp at 2750 RPM; 1973: O-200-A, 100 hp at 2750 RPM; 1974: O-200-A, 100 hp at 2750 RPM. Its named propeller applications are 1A101/GCM6948; 1A101/HCM6948; 1A101/PCM6948; 1A102/OCM6948. Their diameter, static-RPM and configuration conditions are preserved together below.

Specifications, Fuel and Loading

The L-model performance evidence covers multiple years and distinguishes standard-fuel and long-tank range conditions. This is one reason to place the metrics in a single year/condition table rather than separate tiny tables that encourage comparing unmatched figures. The 1973 empty-weight summary labels Standard, Trainer, Commuter and Aerobat examples; the Aerobat label is not a standard-L empty weight. Actual equipment and fuel carried determine the practical cabin-load margin beneath the certified limit. The larger year coverage makes a current aircraft weight-and-balance record especially valuable when comparing two L-series sale listings.

The L-model year summaries also show the limits of a sales-name comparison. A 1973 source lists 990-lb Standard, 1,010-lb Trainer, 1,060-lb Commuter and 1,040-lb Aerobat examples. The standard 150L page can preserve that mixed year-context record without claiming that the Aerobat weight belongs to the standard aircraft. The current weight-and-balance report is needed to turn a useful historical comparison into a loading answer for an individual L. The ordinary L range spans 15072004-15075781, but handbook families, propeller conditions and equipment breakpoints divide that interval for different purposes. Do not expect every division to occur at the same serial. A 125-W flasher-bulb change and a steel-flange wheel change concern different systems even when their source lists them in the same year. The published dimensions likewise carry year context; a later length should not be used to silently fill the earlier L summary. The practical lesson for an owner is to identify the question first: model identity, handbook selection, wheel parts, cabin hardware or performance conditions. Then use the matching L-series boundary. This provides a more useful comparison with the preceding K and following M than treating all four L years as a single equipment package or assuming that the newest-looking cockpit identifies the production year.

Performance and Comparison Conditions

One published 150L example is 1971 cruise speed: 117 mph (power % 75; altitude ft 7000). The table keeps each metric's year, units, power, altitude, fuel and reserve columns together. Use the performance guide to distinguish headline comparisons from handbook operating calculations; no unreported condition is supplied for 150L.

Manuals, Maintenance and Research

Handbook leads advance through D836-13 / D839-13, D901-13 / D900-13, D962-13 / D963-13 and D1013-13 / D1014-13. These are year- and variant-sensitive families, not one interchangeable L manual. The 1974 mapping explicitly avoids FRA inheritance. For a standard U.S. L, connect its own serial and publication year before using a handbook performance chart, then check the named component breakpoints and actual modification records. Argentine A-150L wording and Reims F150L wording need separate identity work even when a handbook offers related technical context. The positive 150L publication leads are 1971: D836-13 / D839-13 (Owner's Manual); 1972: D901-13 / D900-13 (Owner's Manual); 1973: D962-13 / D963-13 (Owner's Manual); 1974: D1013-13 / D1014-13 (Owner's Manual).