Keystone–Loening Commuter
1920s American flying boat
The Keystone–Loening K-84 Commuter was a single-engine closed-cabin 4-place biplane amphibious flying boat built by Keystone–Loening. It was powered by a 300 hp Wright Whirlwind engine mounted between the wings with the propeller just ahead of the windscreen. It was first produced in 1929.
This airplane was featured as a model/bank by Texaco, #8 in a series "Wings of Texaco", of historic aircraft used by the company.
Surviving aircraft
305 "Kruzof" – K-84 on display at the Golden Wings Flying Museum in Minneapolis, Minnesota.
313 "The Old Patches" – K-84 on display at the Alaska Aviation Museum, in Anchorage, Alaska.
Specifications
Data from American airplanes: KeystoneGeneral characteristics
Crew: 1
Capacity: 3 passengers / 1,223 lb (555 kg)
Length: 32 ft 5 in (9.88 m)
Wingspan: 36 ft (11 m) (some sources 40 ft (12 m))
Powerplant: 1 × Wright J-6-7 7-cyl. air-cooled radial piston engine, 300 hp (220 kW) -330 hp (250 kW)
Performance
Maximum speed: 115 mph (185 km/h, 100 kn)
Cruise speed: 90 mph (140 km/h, 78 kn)
Stall speed: 50 mph (80 km/h, 43 kn)
Range: 510 mi (810 km, 440 nmi)
Service ceiling: 12,000 ft (3,700 m)
References
Bibliography
Elliot, Bryn (March–April 1997). "Bears in the Air: The US Air Police Perspective". Air Enthusiast.
This brief starts where responsible research should: with the source description of “Keystone–Loening Commuter” as 1920s American flying boat. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as 1920s American flying boat. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 28, 2025. The linked authority identifier is Q6398431. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1929 and 1997.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Keystone–Loening Commuter” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.