Curtiss SC Seahawk — Primary-Source Documentation Archive
The Curtiss SC Seahawk was the U.S. Navy's last operational waterborne scout plane — a single-seat, high-performance monoplane deployed from battleships and cruisers during the final stages of World War II and the immediate postwar era. This archive brings together the surviving original factory and military documentation for the airframe and its powerplant in a single, structured collection.
Airframe Documentation
- Pilot's Handbook for Navy Model SC-1 Airplane — AN 01-25DC-1, revised 15 August 1945, dated 15 February 1946. Supersedes AN 01-25DC-1 dated 1 May 1945. Published under joint authority of the Commanding General, Army Air Forces, and the Chief of the Bureau of Aeronautics.
Engine Documentation — Wright R-1820 Cyclone 9
- Handbook Overhaul Instructions — Navy Models R1820-76A, -76B, -76C, -76D, -80, -80A and -86A Aircraft Engines (Curtiss-Wright) — NAVAIR 02A-35GH-3. Published by direction of the Commander of the Naval Air Systems Command.
- Service Instructions — R-1820-40, -40B, -54, -60, -65, -71, -73, -87 and -97 Aircraft Engines — AN 02-35GC-2, dated 10 December 1943, revised 15 September 1944. Published under joint authority of the Commanding General, Army Air Forces, the Chief of the Bureau of Aeronautics, and the Air Council of the United Kingdom.
- Air Depot Progressive Overhaul Manual — R-1820 Engine — dated 25 September 1943, revised 1 March 1944. Published by the Otterbein Press, Dayton, Ohio.
- Handbook Overhaul Instructions — Models R-1820-56, -56W, -56WA, -62, -62A, -66, -72W, -72WA, -74 and -76 Aircraft Engines — AN 02A-35GD-3, dated 1 August 1944, revised 16 August 1951. Printed for USAF Distribution September 1948 (prior printing for Navy only); includes revision dated 1 July 1947. Published under authority of the Secretary of the Air Force and the Chief of the Bureau of Aeronautics.
- Operation and Service Manual — Wright Cyclone 9, Series C9GA, C9GB, C9GC — Wright Aeronautical Corporation, USA. Factory-issued operation and service manual for the civilian and export Cyclone 9 series.
Aerodynamic Profiles & Design Notes
- Wing Configuration: Low-wing cantilever design with distinct dihedral on outer panels for lateral stability over rough seas.
- High-Lift Devices: Automatic half-wing flaps deploying mechanically at low airspeeds for optimized water landing approaches.
- Foldable Architecture: Hydraulic wing-folding system for compact storage on shipboard catapults and hangar decks.
- Float Systems: Large structural centerline main float with two wingtip stabilizer floats controlling rolling moments on open water.
Engine Technical Notes
- Core Powerplant: Wright R-1820-62 Cyclone 9-cylinder air-cooled radial, 1,350 hp.
- Supercharging: Single-stage, two-speed centrifugal supercharger.
- Propeller: 4-blade Curtiss Electric constant-speed, 10 ft 2 in diameter.
- Fuel Capacity: 316 US gallons (1,196 L) internal; 13 US gallon (49.2 L) oil reservoir.
Performance Data
| Parameter | US Customary | Metric |
|---|---|---|
| Maximum Speed | 235 mph at 2,200 ft | 378 km/h at 670 m |
| Cruising Speed | 125 mph | 201 km/h |
| Maximum Range | 625 miles | 1,006 km |
| Service Ceiling | 37,300 ft | 11,400 m |
| Rate of Climb | 2,500 ft/min | 12.7 m/s |
| Empty Weight | 6,320 lbs | 2,867 kg |
| Max Takeoff Weight | 9,000 lbs | 4,100 kg |
Engineering Bulletins & Modifications
- Radar Pod Integration: AN/APS-4 radar pod mounted beneath the right wing for night scouting operations.
- Convertible Undercarriage: Structural conversion parameters for swapping the centerline float with wheeled landing gear for land-base ferry flights.
- Emergency Rescue Bunk: Rear fuselage adaptation for a single litter casualty or downed pilot.
- Armament Wiring: Two wing-mounted 0.50 caliber Browning M2 machine guns and underwing bomb racks for 325 lb depth charges.
This is an archival, static-copy edition fixed at its original publication date. Intended for historical reference, flight simulation, museum restoration, and educational use only. Not approved for active airworthiness maintenance under FAA 14 CFR § 43.13, EASA Part-M, or equivalent international regulations. Operators of active aircraft must use current, revision-controlled publications from the Type Certificate holder or an authorized distributor.
⚠️ Regulatory Notice: Under FAA 14 CFR § 43.13 and EASA Part-M, any mechanic performing maintenance on an active aircraft must use current, manufacturer-approved revision-controlled data. This archival document does not satisfy that requirement.
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