| 词条 | Hopfner HV-4/28 | ||||||||||||||||
| 释义 |
The Hopfner HV-4/28 was a small airliner built in Austria in the late 1920s. An enlarged version of the HV-3/27, it was a conventional, high-wing cantilever monoplane with a fully enclosed cabin. A single example was built in 1928 and saw heavy use by the airline that year. In 1929, it received a major refurbishment that included a change or powerplant from the original Heiro to a Gnome et Rhône 9A Jupiter engine and was sold to a private owner under the new designation HV-8/29GR. This aircraft was still flying at the time of the Anschluß, after which it received a new German registration. Specifications (HV-4/28){{aerospecs|ref= |met or eng?=met |crew=One pilot |capacity=4 passengers |length m=11.00 |length ft=36 |length in=1 |span m=16.20 |span ft=53 |span in=2 |swept m= |swept ft= |swept in= |rot number= |rot dia m= |rot dia ft= |rot dia in= |dia m= |dia ft= |dia in= |width m= |width ft= |width in= |height m=3.30 |height ft=10 |height in=10 |wing area sqm=42.0 |wing area sqft=452 |swept area sqm= |swept area sqft= |rot area sqm= |rot area sqft= |volume m3= |volume ft3= |aspect ratio= |empty weight kg=1,390 |empty weight lb=3,060 |gross weight kg=1,970 |gross weight lb=4,340 |lift kg= |lift lb= |eng1 number=1 |eng1 type=Hiero 6 |eng1 kw=170 |eng1 hp=230 |eng1 kn= |eng1 lbf= |eng1 kn-ab= |eng1 lbf-ab= |eng2 number= |eng2 type= |eng2 kw= |eng2 hp= |eng2 kn= |eng2 lbf= |eng2 kn-ab= |eng2 lbf-ab= |max speed kmh=125 |max speed mph=78 |max speed mach= |cruise speed kmh=108 |cruise speed mph= |range km= |range miles= |endurance h=6 |endurance min=30 |ceiling m= |ceiling ft= |glide ratio= |climb rate ms= |climb rate ftmin= |sink rate ms= |sink rate ftmin= |armament1= |armament2= |armament3= |armament4= |armament5= |armament6= }}{{aircontent |see also= |related= |similar aircraft= |lists= }} References
2 : Austrian airliners 1920–1929|Hopfner aircraft |
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