Hopfner aircraft, Austria

[LAW]

Theodor Hopfner (1901-1974)
Since 1935, after bankruptcy of Hopfner's own firm Flugzeugbau Hopfner, aircraft was built by Hirtenberger Patronenfabrik AG (Hirtenberg in short).
WNF = Wiener-Neustädter Flugzeugwerke GmbH
AUSTRIA


S.1 - 1923, sport and tourist aircraft, three-seat, single-engine high-wing monoplane with open cockpits and fixed undercarriage, only 1 built

HV.2 - 1925, communication (Verkehr) aircraft, six-seat, single-engine high-wing monoplane with open pilot cockpit, enclosed passengers cabin and fixed undercarriage, only 1 built

HV.327 (also written as HV.3/27) - 1927, communication aircraft, seven-seat, single-engine high-wing monoplane with enclosed cockpits and fixed undercarriage, only 1 built

HV.428 (HV.4/28) - 1928, communication aircraft, five-seat, single-engine high-wing monoplane with enclosed cockpits and fixed undercarriage, only 1 built, later rebuilt as HV.829GR

HS.528 (HS.5/28) - 1928, sport and training aircraft, two-seat, single-engine high-wing monoplane with open cockpits and fixed undercarriage, 2 built, later one rebuilt as HS.528a

HS.528a (HS.5/28a) - 1928, sport and training aircraft, two-seat, single-engine high-wing monoplane with open cockpits and fixed undercarriage, 2 built (including 1 rebuilt from HS.528), later 1 rebuilt as HS.829

HV.628 (HV.6/28) - 1928, communication aircraft, six-seat, single-engine high-wing monoplane with enclosed cockpits and fixed undercarriage, only 1 built

H?.7?? - ?

HS.829 (HS.8/29) - 1929, sport and training aircraft, two-seat, single-engine high-wing monoplane with open cockpits and fixed undercarriage, 9 built (plus 1 rebuilt from HS.528a)

HS.832 (HS.8/32), also known as HS.829a (HS.8/29a) - 1932, sport and training aircraft, two-seat, single-engine high-wing monoplane with open cockpits and fixed undercarriage, only 1 built

HV.829GR (HV.8/29GR) - 1929, communication aircraft, six-seat, single-engine high-wing monoplane with enclosed cockpits and fixed undercarriage, rebuilt from HV.428 with Gnome-Rhone radial engine (hence the designation GR)

HS.932 (HS.9/32) - 1932, sport and training aircraft, two-seat, single-engine high-wing monoplane with open cockpits and fixed undercarriage, 12 built (2 prototypes + 10 series, including one aircraft with modified ailerons and undercarriage designated as HS.935 [HS.9/35])

HS.935 (HS.9/35) - 1935, see HS.932, 1 built

HS.1032 (HS.10/32) - 1932, sport und utility aircraft, two-seat, single-engine high-wing monoplane with enclosed cockpit and fixed undercarriage, 4 built (including one slightly modified and designated as HS.1033 [HS.10/33])

HS.1033 (HS.10/33) - 1933, utility and liaison aircraft, see HS.1032, 1 built

HA.1133 (HA.11/33) - 1933, amphibious flying boat (Amphibium-Flugboot), four-seat, twin-engine high-wing monoplane with enclosed cockpit and additional semi-retractable undercarriage, only 1 built (after Anschluss modified and designated as WNF Wn 11)

HAM.11 – projected military version (Militär) of the HA.1133

HV.1234 (HV.12/34) - 1934, communication aircraft, six-seat, twin-engine high-wing monoplane with enclosed cockpits and fixed undercarriage, only 1 built

HM.1334 (HM.13/34) - 1934, military trainer (Militär), two-seat, single-engine biplane with open cockpits and fixed undercarriage, 3 built

HR.1434 (HR.14/34) - 1934, so called "advertising" aircraft (Reklameflugzeug), two-seat, twin-engine low-wing monoplane with enclosed cockpits and retractable (later modified as fixed) undercarriage, only 1 built

HV.15 - 1936, communication aircraft, six-seat, twin-engine low-wing monoplane with enclosed cockpits and retractable undercarriage, only 1 built (after Anschluss designated as WNF Wn 15)

HM.15 - projected military version of the HV.15

HS.16 - military trainer and light fighter developed from HS.9, two-seat, single-engine high-wing monoplane with open cockpits and fixed undercarriage, only project


Any comments and additions are welcome.

Regards,

LAW

 

[hesham]

Hi,

I am not sure about this; HV.7 was a sporting aircraft.

 

[LAW]

Hi hesham,

Designation HV.7 suggests that it was rather communication (V = Verkehr) not sporting (S = Sport) aircraft. But I'm not sure. It was probably only project.

Regards,

LAW

 

[hesham]

May be you are right,

and the project called HS.7.

 

[hesham]

Hi LAW,

also in my list those mysteries aircraft,HS or HV 328 four seat version,and HS.1335,
but with no details for the later one,who can explain this ?.

 

[Apophenia]

Just a guess: HV 328 (or HV.3/28) suggests a further Hopfner HV.3/27 airliner development. 'HS.1335' (or 'HS.13/35') sounds like a proposed civil sport derivative of the Hopfner-Hirtenberg HM.13/34 military trainer biplane.

 

[hesham]

Maybe that's right my dear Apophenia,

I will check.