Cessna 150L vs 150M: Model Years, Dimensions and Aircraft Records

The 150L and 150M are successive late Cessna 150 models, but each spans several model years. A useful comparison starts with the year and the aircraft's present configuration. It should not turn one published example from each model into a universal specification for every aircraft carrying that letter.

Another view of Cessna 150D D-EBNY, showing the cabin-to-tail outline. This aircraft illustrates the D generation rather than all early models. Photo: Huhu Uet · Wikimedia Commons · CC BY 3.0. Resized, WebP.

Compare the year-specific evidence

The source series records changes within the 150L years as well as between the L and M. Dimension entries, published empty weights and propeller descriptions therefore need their year labels. The table retains the original data-status and source fields rather than selecting only the most favorable values.

Published late-150 year records
Year	Model(s)	Published Gross / MTOW	Published Empty Weight	Span	Length	Height	Engine	Power	Propeller	Notes	Source
1971	150L/A150L	1600 lb	975 Std; 1060 Commuter	32 ft 8.5 in	23 ft 3 in	8 ft 7.5 in	O-200-A	100 hp	Metal fixed pitch 69 in	Detailed secondary page.	[1]
1972	150L/A150L	1600 lb	-	32 ft 8.5 in	23 ft 9 in	8 ft 7.5 in	O-200-A	100 hp	Metal fixed pitch 69 in	Empty-weight line not established, not inferred.	[2]
1973	150L/A150L	1600 lb	990 Std; 1010 Trainer; 1060 Commuter; 1040 Aerobat	32 ft 8.5 in	23 ft 9 in	8 ft	O-200	100 hp	Metal 69 in	Detailed secondary page.	[3]
1974	150L/A150L	1600 lb	995 Std; 1060 Commuter	32 ft 8.5 in	23 ft 9 in	8 ft	O-200-A	100 hp	Metal fixed pitch 69 in	Detailed secondary page.	[4]
1975	150M/A150M	1600 lb	-	-	-	-	O-200-A	100 hp	1A102/OCM family	Use the applicable D1033-13 handbook for performance figures.	[5]
1976	150M/A150M	1600 lb	1104 Commuter; 1076 Aerobat	33 ft 2 in	23 ft 11 in	8 ft 6 in	O-200-A	100 hp	Metal fixed pitch 69 in	Long-range fuel source typo excluded and logged.	[6]
1977	150M/A150M	1600 lb	1104 Commuter; 1076 Aerobat	33 ft 2 in	23 ft 11 in	8 ft 6 in	O-200-A	100 hp	Metal fixed pitch 69 in	Detailed secondary page.	[7]

Table sources:

Same engine family does not mean identical aircraft

Both models lead into the O-200-A installation reference, but actual engine, propeller and equipment history still matter. The OCM propeller guide describes the relevant application context and its model-year qualifications. An eligible propeller is not proof of the part currently fitted.

Published empty weight is especially easy to misuse in a buying comparison. The aircraft's current equipment and recorded weight can differ from a historical specification. Use the weight guide and the latest aircraft records to compare useful load for the intended occupants and fuel.

Close view of stripped metal skin at the tail of Cessna 150H N23103 — Tail-area skin on Cessna 150H N23103 at Elstree. The photograph documents a visible surface; it does not diagnose corrosion or structural condition. Photo: Alec Wilson from Hampton-in-Arden, United Kingdom · Wikimedia Commons · CC BY-SA 2.0. Resized, WebP.

Performance needs a second comparison

Cruise, range and runway figures need their operating conditions. The performance hub separates these questions so a change in reserve basis or power setting is not mistaken for a pure model improvement. Do not combine values from different source conditions into an unsupported ranking.

Choose between actual candidates

The 150L model reference and 150M reference provide the exact identity paths. Compare logbooks, alterations, structural condition and the specific aircraft's mission fit alongside the historical differences. The standard-model comparison does not establish the limits of A150L/A150M Aerobats or French-built variants. Their legal identity and configuration deserve their own evidence.

Cessna 152 II PH-SKG in side view on an airport apron — Cessna 152 II PH-SKG at Portimão, showing the nose, main landing gear and wing strut. Photo: Robbie Klinkenberg · Wikimedia Commons · CC BY-SA 4.0. Resized, WebP.

Document the comparison

For a reproducible buyer comparison, record the exact year, current equipment and the publication behind each claimed difference. If the listing omits a propeller designation or relies on a brochure empty weight, mark that input as unresolved. This produces a useful set of follow-up questions and avoids ranking an entire model generation by an incomplete description of one example.

The overlapping GCM, HCM and PCM propeller applications explain why a 150L model label alone cannot identify its propeller. This is a useful component check alongside the broader generation comparison.