Hopfner HS-5/28
Hopfner · Austria · first flew 1928 · light aircraft
The Hopfner HS-5/28 was an Austrian utility aircraft built in the late 1920s, a conventional parasol-wing monoplane seating two occupants in tandem open cockpits.
Recognition (WEFT)
| W — Wings | High-mounted, straight |
|---|---|
| E — Engines | 1 × piston, nose-mounted |
| F — Fuselage | 7.4 m fuselage |
| T — Tail | Conventional |
WEFT is AircraftIQ's four-point recognition method — how it works.
Spot it by:
- Parasol-wing monoplane
- Two tandem open cockpits
- Fixed tailskid landing gear with divided main units
A parasol-wing monoplane with tandem open cockpits and a fixed tailskid undercarriage with divided main units.
Specifications
- The Hopfner HS-5/28 has a length of 7.4 m (24 ft).
- It has a wingspan of 11.26 m (37 ft).
- Its maximum speed is 148 km/h (92 mph).
- Typical crew: 1.
Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.
History
Theodor Hopfner designed it and it first flew in July 1928. It was powered by a Walter NZ60 five-cylinder radial engine.
Variants
Two examples were built with Walter NZ60 engines, followed by two more with the more powerful NZ85.
Where you'll see it
Four were built in all, and the two NZ85 machines were for Swiss aeroclub use. One of those remained in service until 1934.
Related aircraft
- Hopfner HS-8/29
- Hopfner HV-3/27
- Hopfner HV-6/28
- Hopfner HA-11/33
- Albatros L 74
- Albatros L 75 Ass
- Arado SC II
- Bartel BM 5
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