Cessna 150K Model Reference

Generation and Certification

A shared model-year context does not authorize borrowing Aerobat limitations or assuming identical installed equipment. Follow the standard-model serial, applicable propeller entry and actual component identification. The spinner-related trigger explains why a parts question may need more detail than the official model designation.

The 1970 150K is the standard model alongside the new A150K Aerobat. That parallel introduction is the key historical comparison: the standard aircraft does not acquire an Acrobatic category because the same year includes an Aerobat version. Standard K limits remain 141 kt Vne and 104 kt Vno on the recorded CAS basis, whereas the A150K group lists higher acrobatic-category values. Both aircraft can be described as 100-hp 150s, so engine power alone is a poor guide to their operating-document and limitation differences.

Serial Numbers and Production

For 150K, the ordinary source assignments are 1970: 15071129 through 15072003. The serial guide retains source conflicts and exceptional identities alongside these intervals.

Engine, Propeller and Equipment Changes

The standard K's spinner change begins at serial 15071711, inside its 15071129-15072003 ordinary interval. A propeller/spinner parts enquiry should therefore preserve the serial breakpoint as well as the actual installed assembly. This is distinct from the later L-series landing-gear generation and from the Aerobat's separate certification identity. The K propeller evidence also retains configuration conditions rather than a universal pitch specification. It is possible for two standard K aircraft to share the same model-year description while requiring different investigation because of original effectivity or later recorded alterations.

The 150K factory installation groups specify 1970: O-200-A, 100 hp at 2750 RPM. Its named propeller applications are 69CK family / 1A100/MCM6950 / 1A101/DCM6950; 1A90/CF. Their diameter, static-RPM and configuration conditions are preserved together below.

Specifications, Fuel and Loading

The K remains at a 1,600-lb standard landplane limit, with a 26-gallon total and 22.5-gallon usable fuel entry in the certified group. The Patroller option appears separately in historical year context. Compare the published 975-lb Standard and 1,060-lb Commuter examples as equipment descriptions rather than two different gross-weight approvals. For operating comparisons with the A150K, the standard-model cruise table is not Aerobat performance evidence. Retaining category, tank configuration and source conditions avoids making the superficially similar aircraft appear interchangeable in a loading or performance question.

The standard K and A150K also demonstrate why an engine comparison is insufficient for an Aerobat purchase. Their nominal O-200-A power is similar, but the category, serial sequence, propeller relationship and operating limitations are separately established. The standard K's spinner breakpoint is a component distinction inside its own range, not a rule for the A150K or French K sequences. If a records collection uses only the phrase "1970 150", resolve which identity it actually concerns before interpreting the combined D727-13 / D740-13 manual lead. The source should decide the relationship, not the apparent similarity of the aircraft or handbook cover.

Performance and Comparison Conditions

One published 150K example is 1970 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 150K.

Manuals, Maintenance and Research

The K publication lead lists D727-13 / D740-13 as a combined standard/Aerobat family. It deliberately does not authorize using either copy for every K-marked aircraft. Resolve the title, aircraft coverage and amendments, then use the serial record and spinner boundary to orient the parts research. The next standard generation is the multi-year 150L; its tubular-gear history belongs in that comparison rather than being attributed to the K. The Reims F150K and FA150K add another authority and serial namespace, so a bare "K model" description is insufficient for document selection. The positive 150K publication leads are 1970: D727-13 / D740-13 (Owner's Manual).