Hopfner HA-11/33

Hopfner HA-11/33

__NOTOC__ Infobox Aircraft
name=HA-11/33, Wn 11


caption=
type=Utility amphibian
national origin=Austria
manufacturer=Hopfner, WNF
designer=Theodor Hopfner
first flight=avyear|1933
introduced=
retired=
status=
primary user=
more users=
produced=
number built=
variants with their own articles=The Hopfner HA-11/33 was an amphibious flying boat built in Austria in 1933 to a specification by the Dr. Oetker company for such an aircraft. The result was a conventional, high-wing cantilever monoplane with a stepped flying boat hull and pontoons on struts under the wings at mid-span. The cabin was fully enclosed, and the twin engines were mounted tractor-fashion on struts above the wing.

A HA-11/33 was purchased by the Austrian Air Force, and was subsequently absorbed into the German Luftwaffe following the Anschluß. Deemed worthy of further development, WNF (which had absorbed Hirtenburg, which itself had taken over Hopfner) was tasked with developing it into a military training aircraft for flying boat pilots. Designated WNF Wn 11 by the RLM, testing was undertaken at Travemünde in 1940, but the type was not ordered into production. Development of a highly streamlined derivative with Hirth HM 508 engines, the WNF Wn 11C was also abandoned.

pecifications

aerospecs
ref=
met or eng?= met

crew=One pilot
capacity=3 passengers
length m=10.17
length ft=33
length in=4
span m=14.11
span ft=46
span in=4
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=3.15
height ft=10
height in=4
wing area sqm=30.4
wing area sqft=327
swept area sqm=
swept area sqft=
rot area sqm=
rot area sqft=
volume m3=
volume ft3=
aspect ratio=
empty weight kg=1,100
empty weight lb=2,420
gross weight kg=1,800
gross weight lb=3,960
lift kg=
lift lb=

eng1 number=2
eng1 type=Siemens Sh 14a
eng1 kw= 94
eng1 hp= 125
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=190
max speed mph=120
max speed mach=
cruise speed kmh=
cruise speed mph=
range km=900
range miles=560
endurance h=
endurance min=
ceiling m=4,500
ceiling ft=14,800
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

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* [http://www.airwar.ru/enc/cw1/ha1133.html Уголок неба]


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