Sido S.1
Sido · Poland · first flew 1930 · light aircraft
The Sido S.1 was a Polish two-seat, parasol-wing trainer first flown in 1930.
Recognition (WEFT)
| W — Wings | High-mounted, tapered |
|---|---|
| E — Engines | 1 × piston, nose-mounted |
| F — Fuselage | Parasol wing with a fuel-tank centre section held above the fuselage on steel tube struts |
| T — Tail | Conventional |
WEFT is AircraftIQ's four-point recognition method — how it works.
Spot it by:
- Parasol wing with a fuel-tank centre section held above the fuselage on steel tube struts
- Straight-tapered wing joined to the lower fuselage with V-struts
- Two open tandem cockpits with a rounded trailing-edge cut-out in the wing above the rear cockpit
A parasol monoplane with a straight-tapered wooden wing and a flat-sided fabric-covered fuselage. It has a triangular fin with a large rudder, and a strut-braced tailplane on top of the fuselage.
Specifications
- The Sido S.1 has a length of 7.8 m (26 ft).
- It has a wingspan of 11.4 m (37 ft).
- Its maximum speed is 170 km/h (106 mph).
- Typical crew: 2.
Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.
History
The amateur designer Józef Sido, a student at the Mining Academy in Kraków, designed it in 1929 in response to a LOPP requirement for a low-cost 80 hp club trainer. Three airframes were built in parallel in the workshops of the local Air Regiment, and the first, with a 85 hp Cirrus III, flew on 21 or 28 July 1930.
Variants
The second and third airframes were initially known as the S.2 and S.3, and were modified to S.1 standard in late summer 1931. The S.1bis Z was a series of three built by the Central Aeroclubs' Workshops with streamlined wing struts and a Townend ring cowling.
Where you'll see it
The Polish military considered it alongside the PZL.5 and the M.N.5 but did not adopt it, as there was no established manufacturing facility. It competed in Polish meetings through the early 1930s and served as a club trainer, and one remained in use until 1939.
Related aircraft
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