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Ryan S-C/L-10

The Ryan S-C was an American three-seat cabin monoplane.

 At least one was impressed into service with the United States Army Air Forces as the L-10.

The Ryan S-C was a low-wing cantilever monoplane with a fixed tailwheel landing gear, designed to be an up-market version of the Ryan S-T trainer.

The prototype first flew in 1937 and had a nose-mounted 150 hp (112 kW) Menasco inline piston engine.

Production aircraft were fitted with a 145 hp (108 kW) Warner Super Scarab radial engine.

With the company’s involvement in producing trainer aircraft for the United States military, the S-C was not seriously marketed, and only 11 complete SCs were built, all delivered in 1938; two more were later assembled from parts (s/n 213 in 1941 and s/n 214 in 1959).

As many as five were impressed into service with the Civil Air Patrol, auxiliary of the United States Army Air Forces for anti-submarine patrol and warfare duties on the East coast of the US and was designated the L-10.

At the start of the 21st Century, four examples were still airworthy in the United States.


S-C later S-C-M

Prototype powered by a 150hp (112kW) Menasco C4S inline engine, one built later converted to S-C-W.


Production aircraft powered by a 145hp (108kW) Warner Super Scarab radial engine, 12 built.


United States Army Air Forces designation for one S-C-W impressed into service in 1942, it was disposed of in November 1944.

Later Modifications

Two SC-Ws exist with a horizontally opposed 6-cylinder Continental engine.

One was modified from a radial-powered SC-W, and one was built with the 6-cylinder engine after WWII using spare airframe parts from the original pre-WWII production run.





2 passengers


25 ft 4+12 in (7.734 m)


37 ft 6 in (11.43 m)


6 ft 10 in (2.08 m)

Wing area

202.0 sq ft (18.77 m2)

Empty weight

 1,345 lb (610 kg)

Gross weight

2,150 lb (975 kg)


1 × Warner Super Scarab radial engine,

145 hp (108 kW)


Maximum speed

150 mph (240 km/h, 130 kn) at sea level

Cruise speed

135 mph (217 km/h, 117 kn) at 8,500 ft (2,600 m)

Stall speed

45 mph (72 km/h, 39 kn)


525 mi (845 km, 456 nmi)

Service ceiling

17,200 ft (5,200 m)

Rate of climb

900 ft/min (4.6 m/s)

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