Seaplane Length Comparison (Meters)
Compare 12 seaplane overall lengths in meters, from the 7.1 m Cub to the 43.4 m BV 238. Exact official maker specs for floatplanes in a linked converter tool.
Visual comparison
All values
Click any row to load it as Entry A.
| Name | Value | Context | Source |
|---|---|---|---|
| CubCrafters XCub Floats Shortest here at 7.1 m. | 7.1 m (23.3 ft) | Light sport floatplane | CubCrafters XCub specs: 23 ft 3 in (7.1 m) length |
| Cessna 172 Floats Trainer floats at 8.2 m. | 8.2 m (26.9 ft) | Training floatplane | Cessna 172 float specs: 27 ft (8.2 m) length |
| DHC-2 Beaver Bush legend at 9.2 m. | 9.2 m (30.2 ft) | De Havilland bush plane | De Havilland Beaver specs: 30 ft 3 in (9.2 m) length |
| DHC-3 Otter Single otter at 12.8 m. | 12.8 m (42 ft) | De Havilland single otter | De Havilland Otter specs: 42 ft (12.8 m) length |
| DHC-6 Twin Otter Floats Twin commuter at 15.8 m. | 15.8 m (51.8 ft) | De Havilland twin commuter | De Havilland Twin Otter specs: 51 ft 9 in (15.8 m) length |
| Grumman Goose Goose boat at 11.6 m, actually shorter than Otter. | 11.6 m (38.1 ft) | Grumman 1937 flying boat | Grumman Goose specs: 38 ft 3 in (11.6 m) length |
| PBY Catalina Black cat at 19.5 m. | 19.5 m (64 ft) | Consolidated WW2 patrol boat | Consolidated Catalina specs: 63 ft 10 in (19.5 m) length |
| Grumman Albatross Rescue boat at 19.2 m. | 19.2 m (63 ft) | Grumman 1949 rescue boat | Grumman Albatross specs: 62 ft 10 in (19.2 m) length |
| Short Sunderland Flying porcupine at 26 m. | 26 m (85.3 ft) | Short 1938 patrol boat | Short Sunderland specs: 85 ft 4 in (26 m) length |
| Kawanishi H8K Emily Emily boat at 28.1 m. | 28.1 m (92.2 ft) | Kawanishi WW2 flying boat | Kawanishi H8K specs: 92 ft 3 in (28.1 m) length |
| Blohm Voss BV 238 Longest here at 43.4 m. | 43.4 m (142.4 ft) | Blohm 1944 giant boat | Blohm Voss BV 238 specs: 142 ft 4 in (43.4 m) length |
| Martin JRM Mars Fire bomber at 37.7 m. | 37.7 m (123.7 ft) | Martin 1945 fire bomber | Martin Mars specs: 123 ft 8 in (37.7 m) length |
About this converter
Seaplanes run 7.1 to 43.4 m in this table. XCub floats at 7.1 and Cessna 172 floats at 8.2 open the light end. Beaver at 9.2, Goose boat at 11.6, Otter at 12.8, Twin Otter at 15.8, Albatross at 19.2, Catalina at 19.5, Sunderland at 26, Emily at 28.1, Mars fire bomber at 37.7 and BV 238 giant at 43.4 close the boat end. Every figure is fuselage length from maker specs. Floats stay inside length where fitted. Flying boats sit with floatplanes with type noted per row.
How to use it
Pick two seaplanes and a unit in the top row. The three boxes below stay linked. Change any box and the other two update. Try 1 BV 238 against 1 XCub to see the 43.4 to 7.1 gap in meters or feet. Click any table row to load it as Entry A with amount 1.
Values pin fuselage length with floats included where fitted. Goose boat at 11.6 is actually shorter than Otter at 12.8 and kept in true size order with note. Catalina lists 63 ft 10 in (19.5 m). Sunderland lists 85 ft 4 in (26 m). BV 238 lists 142 ft 4 in (43.4 m) as longest flying boat. Mars fire bomber at 37.7 is kept with note.
FAQ
Which seaplane longest here?
Blohm Voss BV 238 at 43.4 m.
How long Catalina?
19.5 m (63 ft 10 in).
Do floats count?
Yes where fitted. Floats sit inside length.
Are boats and floats mixed?
Yes with notes. Flying boats and floatplanes sit together.
Sources
- CubCrafters XCub 7.1 m; Cessna 172 8.2 m; De Havilland Beaver 9.2 m, Otter 12.8 m, Twin Otter 15.8 m
- Grumman Goose 11.6 m and Albatross 19.2 m; Consolidated Catalina 19.5 m; Short Sunderland 26 m; Kawanishi H8K 28.1 m; Blohm BV 238 43.4 m; Martin Mars 37.7 m
Last verified: 2026-10-07 · 12 entries
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