Ryan Aeronautical Company
Ryan STM Series trainer
First flight 8 June 1934
Introduction 1934
Ryan Aeronautical
Ryan STM Series trainer
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| A restored Ryan ST-A Special | |
| Role | Monoplane Trainer |
|---|---|
| Manufacturer | Ryan Aeronautical Company |
| Designer | T. Claude Ryan |
| First flight | 8 June 1934 |
| Introduction | 1934 |
| Status | Production completed |
| Primary users | United States Army Air Forces Netherlands East Indies Army and Navy Royal Australian Air Force |
| Number built | 1,568 |
| Variants | Ryan PT-22 Recruit |
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History Ryan Aeronautical Company
Ryan STM Series trainer
First flight 8 June 1934
Introduction 1934
T. Claude Ryan was the founder of the Ryan Aeronautical Company, the second incarnation of a company with this name, and the fourth company with which he had been involved to bear his name (the first, Ryan Airlines, was the manufacturer of the Ryan NYP, more famously known as the Spirit of St. Louis). He began the development of the ST (for "Sport Trainer", and also known as S-T), the first design of the company, in 1933
The Ryan STs were a series of two seat, low-wing monoplane aircraft built in the United States by the Ryan Aeronautical Company. They were used as sport aircraft, as well as trainers by flying schools and the militaries of several countries.
Development
A surviving Ryan STM-S2 in Australia, showing the larger cockpit openings and external stringers unique to the STM-2 
Ryan STM-S2 with Netherlands East Indies markings during AirVenture 2011 
A U.S. Navy Ryan NR-1 at NAS Jacksonville, 1942. T. Claude Ryan was the founder of the Ryan Aeronautical Company, the second incarnation of a company with this name, and the fourth company with which he had been involved to bear his name (the first, Ryan Airlines, was the manufacturer of the Ryan NYP, more famously known as the Spirit of St. Louis). He began the development of the ST (for "Sport Trainer", and also known as S-T),[2] the first design of the company, in 1933.
_Ryan_ST-M_S2_at_Temora.jpg)
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Ryan Aeronautical Company
Ryan STM Series trainer
Ryan Aeronautical Company
Ryan STM Series trainer
General Info
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- Crew: 1
- Length: 36 ft 1+3⁄4 in (11.02 m)
- Wingspan: 40 ft 9+5⁄16 in (12.43 m)
- Height: 14 ft 8+1⁄16 in (4.472 m)
- Wing area: 299.99 sq ft (27.870 m2)
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Powerplant
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- Empty weight: (4,536 kg)
- Gross weight: (6,001 kg)
- Max takeoff weight: (7,938 kg)
- Powerplant: 1 × Pratt & Whitney R-2800-59 18-cylinder air-cooled radial piston engine, 2,000 hp (1,500 kW)
- Propellers: 4-bladed Curtiss Electric C542S constant-speed propeller, 13 ft 0 in (3.96 m) diameter
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Performance
- Maximum speed: 426 mph (686 km/h, 370 kn) at (9,100 m)
- Range: 1,030 mi (1,660 km
- Service ceiling: 13,000 m
- Wing loading: 44 lb/sq ft (210 kg/m2)
Armament
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- 8 × .50 in (12.7 mm) M2 Browning machine guns with 425 rounds per gun (3400 rounds total)
- Up to 2,500 lb (1,100 kg) of bombs
- 10 × 5 in (127 mm) HVAR unguided rockets
Links to Youtube & Others
The pre-war doctrine of the Royal Netherlands Navy (RNN) was to use a combination of flying boats and submarines as an offensive weapon against an enemy fleet. As a result of this doctrine, the Naval Air Service (MLD) procured a large number of flying boats (34 Dornier Do-24K and 38 Consolidated PBY Catalina’s).
Ryan Aeronautical
Ryan STM Series trainer
The most readily available type was the Ryan ST-M (Sport Trainer-Military) a military export version of the pre-war ST-A sports aircraft.
Youtube Link
The MLD order totalled 48 STMs, of which 24 were to be fitted with twin floats (and designated STM-S2), plus 12 extra sets of landplane undercarriages.
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Ryan STM Series trainer
