PWS-4
Podlaska Wytwornia Samolotow · Poland · first flew 1928 · light aircraft
The PWS-4 was a prototype Polish sports aircraft developed in 1928 by Podlaska Wytwornia Samolotow.
Recognition (WEFT)
| W — Wings | High-mounted, straight |
|---|---|
| E — Engines | 1 × piston, nose-mounted |
| F — Fuselage | 5.57 m fuselage |
| T — Tail | Conventional |
WEFT is AircraftIQ's four-point recognition method — how it works.
Spot it by:
- Braced high-wing monoplane with rectangular wings
- Wings supported by pairs of twin struts
- Fixed conventional landing gear with a rear skid
The fuselage was a wooden frame covered in plywood, apart from the aluminium-sheeted engine section. A 40 hp Salmson AD.9 nine-cylinder radial engine drove a two-bladed fixed-pitch wooden propeller.
Specifications
- The PWS-4 has a length of 5.57 m (18 ft).
- It has a wingspan of 7.6 m (25 ft).
- Its maximum speed is 140 km/h (87 mph).
- Typical crew: 1.
Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.
History
It was conceived as a cheap and simple single-seat sports aircraft and designed by August Bobek-Zdaniewski. The prototype was flown in September 1928 at Biala Podlaska by Franciszek Rutkowski.
Variants
Only the prototype was built. The design was later used as the basis for the PWS-50.
Where you'll see it
It did not enter production for lack of orders. It took sixth place in the second Polish Light Aircraft Contest in late 1928 and was later used by the LOPP organisation at Biala Podlaska, among other things for aerobatics.
Related aircraft
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