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Ryan STM Project

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This Ryan STM (Sports Trainer Military) was built in San Diego on 21 November 1940. It was shipped to Java where it served briefly with the Dutch East Indies Marine Air Wing. As the Japanese closed in on the Indonesian Archipelago, 33 Ryan aircraft were shipped to the safety of Australia where they continued training until the pilot training unit moved to the US a year later. After the Dutch flyers left Australia, the Ryans were sold to the RAAF, and then disposed of to Flying Clubs throughout Australia once the war ended.

Since 1974, the Ryan has been undergoing a complete renewal, which is now almost finished. The restoration includes the following:  rejigging and reskinning the fuselage;  complete renewal of the wings with Sitka spruce spars, new ribs and new attachment brackets and brass bearings for the flaps and ailerons;  a full set of new stainless steel flying wires from McWhyte; new milled cockpit longerons; new wheel fairings, and renovated control surfaces;  new certified control cables;  new wheels and tyres with hydraulic brakes;  rebuilt fuel tank;  improved MLG shock absorbers;  cockpit fully fitted out as new; and a zero-hours Gipsy Major 10-1 engine (145 hp) with hand-made cowls.

All work has been carried out or supervised by Licensed Aircraft Mechanical Engineers and extensive compliance paperwork is available.

Unfinished work is as follows: engine installation;  cockpit instrumentation;  covering of wings which are still open;  painting of fabric surfaces; sourcing a propeller and fitment of battery and wiring for engine starter and radio.

This is in effect a new aircraft, 84 years after manufacture. Furthermore it has the benefit of a new Gipsy engine which has been brought up to the latest mod status, including an electric starter, Slick mags, and carb heat, all with release paperwork. The Gipsy engine is an approved Australian mod, and is more reliable and supportable than the original Menasco engine, but is externally almost indiscernible from the original.

It is regrettable that this lengthy restoration has outlasted the current owner who is about to hang up his goggles and buy a caravan.  

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Aircraft Type - Specifications

  • Wingspan: 9.12 m (29 ft 11 in)
  • Length: 6.92 m (22 ft 8½ in)
  • Height: 2.11 m (6 ft 11 in)
  • Wing area: 11.52 m² (124 sq ft)
  • Max speed: 257 km/h (160 mph)
  • Cruising speed at 914 m (3,000 ft): 217 km/h (135 mph)
  • Stalling speed: 68 km/h (42 mph)
  • Landing speed: 87 km/h (54 mph)
  • Service ceiling: 5,669 m (18,600 ft)
  • Rate of climb: 297 m/min (975 ft/min)
  • Range with standard fuel tank: 525 km (326 miles)
  • Range with auxiliary fuel tank: 919 km (571 miles)
  • Fuel capacity: 90 litres (20 imp gals)
  • Fuel capacity with auxiliary fuel tank: 159 litres (35 imp gals)
  • Take-off run: 207 m (680 ft)
  • Landing run without flaps: 185 m (608 ft)
  • Empty weight: 491 kg (1,083 lb)
  • Useful load: 235 kg (517 lb)
  • Loaded weight: 726 kg (1,600 lb)