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United States Marine Corps Air/Ground Museum, Quantico Virginia
Convair OY-1 'Sentinel' SN: 12054

Description
  Manufacturer:Convair
  Base model:OY
  Designation:OY
  Version:-1
  Nickname:Sentinel
  Designation System:U.S. Navy / Marines
  Designation Period:1922-1962
  Basic role:Observation
  Crew:Pilot & Passenger
  Serial/Bureau Number:12054
  Location:United States Marine Corps Air/Ground Museum, Quantico Virginia

Specifications
  Length: 24' 1" 7.3 m
  Height:8' 11" 2.7 m
  Wingspan: 34' 10.3 m
  Wingarea: 155.0 sq ft 14.4 sq m
  Empty Weight: 1,472 lb 667 kg
  Gross Weight: 2,185 lb 990 kg

Propulsion
  No. of Engines: 1
  Powerplant: Lycoming O-435-A
  Horsepower (each): 190

Performance
  Range: 390 miles 628 km
  Cruise Speed: 115 mph 185 km/h 100 kt
  Max Speed: 129 mph 207 km/h 111 kt
  Climb: 975 ft/min 297 m/min
  Ceiling: 15,800 ft 4,815 m