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.

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Quick Facts K-84 Commuter, Role ...

K-84 Commuter
Role	Flying boat
National origin	United States
Manufacturer	Keystone–Loening
First flight	1929

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This airplane was featured as a model/bank by Texaco, #8 in a series "Wings of Texaco", of historic aircraft used by the company.

• 305 "Kruzof" – K-84 on display at the Golden Wings Flying Museum in Minneapolis, Minnesota.^[1]
• 313 "The Old Patches" – K-84 on display at the Alaska Aviation Museum, in Anchorage, Alaska.^[2]

Data from American airplanes: Keystone^[3]

General 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)