HB-Flugtechnik HB-23

__NOTOC__ Infobox Aircraft
name=HB-3, HB-21, and HB-23


caption=
type=Motorglider
manufacturer=HB-Flugtechnik
designer=Heino Brditschka
first flight=1973
introduced=
retired=
status=
primary user=
more users=
produced=
number built=
variants with their own articles=

The HB-Flugtechnik HB-3, HB-21 and HB-23 are a family of motor gliders of unorthodox configuration developed in Austria in the early 1970s. The unusual design was based on work done by Fritz Raab in Germany in the 1960s. The pilot and passengers sit in a fuselage pod with the engine and propeller behind them. The pod also carries the fixed tricycle undercarriage and the high cantilever wing. The tail is carried on a pair of booms that emerge from the top and bottom of the fuselage pod, the upper of which passes through the propeller hub. The HB-21 has a conventional tail and has two seats in tandem accessed by a sidewards-hinged canopy, while the HB-23 has a T-tail and side-by-side seating accessed via gull-wing doors in the canopy.

pecifications (HB-23)

aerospecs
met or eng?= met

crew=one pilot
capacity=1 passenger
length m=8.00
length ft=26
length in=3
span m=16.40
span ft=53
span in=10
swept m=
swept ft=
swept in=
rot number=
rot dia m=
rot dia ft=
rot dia in=
dia m=
dia ft=
dia in=
height m=2.45
height ft=8
height in=0
wing area sqm=19.1
wing area sqft=205
swept area sqm=
swept area sqft=
rot area sqm=
rot area sqft=
volume m3=
volume ft3=
aspect ratio=
empty weight kg=560
empty weight lb=1,235
gross weight kg=760
gross weight lb=1,676
lift kg=
lift lb=

eng1 number=1
eng1 type=Volkswagen air-cooled engine
eng1 kw= 75
eng1 hp= 100
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=178
max speed mph=111
max speed mach=
cruise speed kmh=
cruise speed mph=
range km=
range miles=
endurance h=
endurance min=
ceiling m=
ceiling ft=
glide ratio= 20
climb rate ms=
climb rate ftmin=
sink rate ms= 1.3
sink rate ftmin= 256

armament1=
armament2=
armament3=
armament4=
armament5=
armament6=

References

*
*
* [http://www.fsg-grimming.at/grimming/motorsegler/hb23_daten.php fsg-grimming.at]
* [http://www.lokh.at/cms/index.php?option=com_content&task=blogcategory&id=0&Itemid=53 www.lokh.at - HB23 Daten]

ee also

aircontent

related=
*Raab Motorkrähe IV - HB-Flugtechnik HB-400

similar aircraft=
*Edgley Optica
sequence=

lists=

see also=