Cessna 150D Model Reference

Generation and Certification

The practical comparison with the preceding early group is therefore both structural and documentary. Certified weights belong to the applicable group, dimensions belong to the stated configuration, and optional equipment remains an installation question. A record of eligibility is not evidence that the option was fitted or remains on the aircraft today.

The 1964 150D moves the standard aircraft from the 1,500-lb early group to a 1,600-lb landplane limit, alongside the Omni-Vision rear-window and baggage changes. That is a more consequential comparison with the 150C than the unchanged O-200-A power rating suggests. Vne rises from the early group's 136 kt to 141 kt CAS, Va from 92 kt to 95 kt CAS and Vfe from 74 kt to 87 kt CAS; Vno remains 104 kt CAS. These are group-specific certified comparisons, not a claim that the cockpit's indicated scale can be read without its calibration information.

Serial Numbers and Production

For 150D, the ordinary source assignments are 1964: 15060088 through 15060772. The serial guide retains source conflicts and exceptional identities alongside these intervals.

Engine, Propeller and Equipment Changes

The D-model heavy-duty nose-gear entry starts at 15060477. The wording is optional-equipment eligibility, so the later portion of the serial range cannot be advertised as universally fitted with heavy-duty gear. Identify the nose-gear installation when evaluating an aircraft intended for demanding ground operations. The published 21 ft 7 in length is qualified by the standard spinner, which makes it inappropriate to turn that dimension into an exact measurement for every propeller/spinner combination. The propeller table itself preserves three applications whose static-RPM limits differ even though their maximum diameter is 69 inches.

The 150D factory installation groups specify 1964: O-200-A, 100 hp at 2750 RPM. Its named propeller applications are 69CK-0-48L / -50L / -52L; 1A100/MCM6950; 1A101/DCM6950. Their diameter, static-RPM and configuration conditions are preserved together below.

Specifications, Fuel and Loading

The 1964 handbook summary lists empty-weight examples of 970 lb Standard, 975 lb Patroller, 990 lb Trainer and 1,010 lb Inter-City. At the same 1,600-lb limit, those examples produce different theoretical useful loads before any present-day equipment changes. This illustrates why the gross-weight increase does not translate into one universal payload claim. Standard usable fuel is 22.5 gallons in the certified group. The range evidence separately includes 35 usable gallons for long tanks, with no-reserve conditions; its larger range figure does not establish either installed tanks or a dispatch fuel allowance.

The higher certified weight and baggage entry make the D a natural boundary in an early-aircraft buying comparison, but the loading envelope still matters. The D-F group records a forward CG limit of 31.5 at the light 1,280-lb point and 32.9 at 1,600 lb, with an aft limit of 37.5 in the supplied datum context. Those are points in a weight-dependent envelope, not a single CG number to attach to every load. The supporting weight-and-balance row also separates baggage wording for D/E from the F reference. A larger baggage allowance cannot be evaluated independently of the actual aircraft's empty weight, occupant stations and moment calculation. The 1964 performance evidence illustrates a second kind of comparison: its 122-mph cruise headline retains 75-percent power and 7,500-ft altitude, while the 490-mile standard-fuel and 760-mile long-tank cruise-range entries retain a no-reserve basis. The range difference is therefore explicitly a fuel/configuration comparison, not a faster D model or a larger legal cabin load. An owner investigating the D's advantages over the C can make a concrete distinction between approved load limits, historical equipment weights, fuel carried and performance conditions. Each contributes something different, and the nose-gear option remains another independent configuration question.

Performance and Comparison Conditions

One published 150D example is 1964 cruise speed: 122 mph (power % 75; altitude ft 7500). 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 150D.

Manuals, Maintenance and Research

The D's normal interval runs from 15060088 through 15060772 and its publication lead is D208-13. That makes it possible to separate the model-wide rear-window generation from the narrower nose-gear option and from an aircraft-specific equipment history. Exhaust-heater research still depends on the named right-hand exchanger and the AD's exact serial range. The later swept-fin and electric-flap generation starts with the 150F, so those features should not be described as D-model changes. For a C-to-D buying comparison, the strongest evidence is the certified loading/speed change plus the actual cabin, baggage and nose-gear configuration. The positive 150D publication leads are 1964: D208-13 (Owner's Manual).