Bulgarian DAR (to 1945) & Lazarov Designations

[hesham]

Lazarov LAZ-11 :single engined cabin monoplane,used as ambulance version of LAZ-8.

 

[Apophenia]

Mostly already out there but perhaps handier in one place. A work in progress ...
_________________________________

DAR (Drjavna_Aeroplane_Robotilnitsa)
ДАР (Държавната аеропланна работилница)

DAR Uzunov-1 (DAR U-1) - German DFW C.Va copy (by Hermann Winter), 220 hp Benz-IV 220 hp. Trainer/recce-bomber. First flight 16 Nov 1925, 7 built.

DAR-1 - Peperuda ('Butterfly') biplane trainer, first flight 1926, 24 built
- DAR 1 : 60hp (45kW) Walter NZ radial, 12 built 1926
- DAR 1A: 85hp (63kW) Walter Vega, 12 built (some sources say 8) 1928

DAR-2 - Biplane trainer (based on German Albatros C.III), 160 hp Mercedes D.III. 12 built late 1926-1927.

DAR-3 - Garvan ('Raven' or Laz-3) recce-bomber biplane
- DAR-3(I) prototype (1927): 400 hp Loraine-Dietrich 12D then 480 hp G&R Jupiter 9Akx
- DAR-3(I.bis) prototype (1929): mod with Wright Cyclone (1935)
- Garvan-I: 650 hp Wright Cyclone SGR-1820 F3, 6 built
- Garvan-II: 650 hp Siemens Jupiter VI (new landing gear, tail, and canopy), 6 built
- Garvan-III: 750 hp Alfa Romeo 126 RC34, 1939, 12 built
- Note: modern DAR lists Garvan variants with arabic not roman numerals

DAR-4 - biplane airliner (2 + 4 pax), 1 prototype, 1930, 3 x 145 hp (108 kW) Walter Mars

DAR-5 - Brambar ('Beetle') - single-seat trainer biplane, 220 hp GR Titan, 1 prototype, 1930
- DAR-5: Hermann Winter design, LZ-UDA/44, used for met recce and liaison*
-- *Aeroflight says fighter trainer; Insignia Magazine (10/1998) says aerobatic trainer
-- http://www.secretprojects.co.uk/forum/index.php/topic,22254.msg224147.html#msg224147
-- http://www.secretprojects.co.uk/forum/index.php/topic,22254.msg224154.html#msg224154

DAR-6 biplane trainer (Laz-1, Zvetan Lazarov combined features of Fw-44 and He-72)
- DAR-6(I): prototype Jan 1932, 85 hp Walter Mars radial in narrow Townsend ring
- DAR-6(II): prototype 1934, uncowled 145 hp Walter Vega radial
- DAR-6A: prototype, 1939, 160 hp Siemens Sh-14A radial. Airframe based on Fw 44 Stieglitz,
-- NB: some sources list 62 DAR-6 built (probably confusion from LZ-ZLB's serial #62)

DAR-7 - [Project] single-seat fighter-trainer (by Hermann Winter), GR Jupiter 9Akx, 1931 [unbuilt]
- https://web.archive.org/web/20101119075444/http://www.samoloty.ow.pl/str316.htm

DAR-7 SS.1 - 2-seat monoplane tourer, 1 prototype (c/n 46) 1935, 130 hp DH Gipsy Major
- designed by Kirill Petkov (Samolet za Svruzka = communications aircraft)

DAR-8 - Slavei (or Slavey, 'Nightingale') 2-seat trainer, 12 built
- DAR-8 (prototype): single-seater, 145 hp Gipsy Major in-line
- DAR-8 (production): two-seater, 130 hp Walter Major IV in-line
- DAR-8A conversion: Walter Mars radial (LZ-BAB c/n 48 and LZ-BAD c/n 50)

DAR-9 - Siniger ('Titmouse' or 'Tomtit') licenced Fw-66J, 1940-1942
- DAR-9: Series I, 160 hp Siemens Sh-14A radial (nb: Series 2-5 built by DSF at Lovech)
- DAR-9A: survivors re-engined with Walter Minor-6.III inline in 1948

DAR-10 - Bekas ('Snipe') 2-seat GP/divebomber (designed by Zvetan Lazarov), 1941/1945
- DAR-10A: 950 hp Alfa Romeo 128 R.C.21, c/n 94, flown 2 July 1941, crashed Oct 1942.
- DAR-10F: 870 hp Fiat A 74 R.C.38, c/n 316, flew March 1945

DAR-11 - [Project] fighter evolved from DAR-10A, higher-powered engine,
- DAR-11: Fighter rejected in favour of licenced Avia B.135/DAR-11 Lyastovitsa

DAR-11 Lyastovitsa ('Swallow'), 1941, 50 planned licenced Czech Avia B.135s [unbuilt]

photos: https://web.archive.org/web/20111005224931/http://www.aeroplanesdar.com/history-old.php
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Undesignated DAR and Lazarov Gliders

DAR Zdravka Toprakchiev - 1926 parasol single-seat glider, Hermann Winter, 1 built
-- named after Mjr Toprakchiev, Bulgarian national hero
-- https://www.j2mcl-planeurs.net/dbj2mcl/planeurs-machines/planeur-fiche_0int.php?code=1841

DAR Zdravka Vekilski - 1926 parasol single-seat glider, Hermann Vinter, 1 built
-- named after Lt Vekilski, Bulgarian national hero
-- http://www.airwar.ru/enc/glider/zdravka.html

DAR Rilski Orel - 1935 single-seat parasol training glider, span 15.82m
- 3 built, 'Albatross', 'Chuchuliga' ('Lark') and 'Rilski Orel' ('Rilksi Eagle')*
-- Rilski Orel won 1936 Olympic gold medal for flight qualities
-- http://www.airwar.ru/enc/glider/rorel.html
-- https://www.j2mcl-planeurs.net/dbj2mcl/planeurs-machines/planeur-fiche_0int.php?code=1843
-- * Named after St. Ivan Rilski who was said to turn into an eagle (Rilski orel)

Lazarov Drangov - 1930 biplane glider, 'Polkovnik Drangov', 1 built
-- named after Col Drangov, Bulgarian national hero
________________________________

Zvetan Lazarov Projects [also sp. as Tsvetan Lazarov, Cvetan Lazarov, or Cwietan Lazarow]

Laz-1 - Focke-Wulf Fw-44 inspired biplane trainer, DAR-6 and DAR-6A prototypes

Laz-2 - [? may also be Lazarov designation for DAR-6 design]

Laz-3 - Recce-bomber biplane built as DAR-3 Garvan

Laz-4 - Single-seat fighter project [?]

Laz-5 - Single-seat fighter project [?]

- NB: Lazarov was involved in final detail design of DAR-11 Lyastovitsa ('Swallow').
-- The B.135/DAR-11 may have been assigned either Laz-4 or Laz-5 designation

Laz-6 - [Project?]

Laz-7 - Military basic trainer (tandem-seat monoplane), 160 hp., 6cyl
- LAZ-7 prototypes, 3 built (LAZ-7.1, LAZ-7.2, LAZ-7.3) 1948-1949.
- LAZ-7 (based on LAZ-7.2) June 1949, 2 trainers, 8 light night bombers.
- LAZ-7 (based on LAZ-7.3) Walter Minor 6-III, 150 built 1950-1951.

Laz-7M - 1951-54 trainer/light attack, M-11FR radial engine
- Laz-7M: aka ZAK-1, see c460's Reply #19 (below)

Laz-8 - 4-seat cabin monoplane, 1 prototype (LZ-BKP) built, 1948, 160 hp Walter-Minor 6.III
-- https://web.archive.org/web/2012091...ret/2459/Aviation/BGplanes/After1945/Laz8.htm

Laz-9 - 2-seat trainer/light attack aircraft, 1950 [unbuilt], 450 hp As-410 or 580 hp As-411
-- https://web.archive.org/web/2012091...ret/2459/Aviation/BGplanes/After1945/Laz9.htm

Laz-10 - tip-jet light helicopter, 1959 [abandoned], sometimes sp. LAZ-10H, LAZ-1 OH, or LAZ 10 X

Laz-11 - Single-engined cabin monoplane, ambulance version of LAZ-8
-- http://www.aviastar.org/manufacturers/1304.html
-- http://chezpeps.free.fr/musee/pays/24_bulgarie.htm

Laz-12 single-seat advanced/fighter-trainer, 1 x prototype 1954
-- https://web.archive.org/web/2010111...et/2459/Aviation/BGplanes/After1945/Laz12.htm

Laz-13 - [Project?]

Laz-14 - 2-seat jet trainer, 1958 [unbuilt] Turbomeca Marbore II turbojet
-- https://web.archive.org/web/2012091...et/2459/Aviation/BGplanes/After1945/Laz14.htm

______________________

 

[hesham]

My dear Apophenia,

please don't forget the DAR-13,DAR-21,DAR-23 and DAR-25.

http://en.wikipedia.org/wiki/DAR_Aircraft

 

[Apophenia]

Thanks Hesham. I forgot to note in the title that I was limiting my DAR list up to 1945. Now added.

 

[Maveric]

Can you say more about the DAR.13 (see the hesham link)... ???

If we have a DAR.13, we need also a DAR.12...

Servus Maveric

 

[Apophenia]

Sorry that rather garbled Wiki comment about the modern Airplanes DAR company, is the only mention I've seen about a "DAR-13" (nothing at all about a "DAR-12").

 

[Maveric]

Yes, its also the only source I know about DAR.13...

 

[Apophenia]

Named but undesignated gliders by DAR and Lazarov added -- biplane Lazarov Drangov and DAR monoplane Zdravka Toprakchiev, Zdravka Vekilski, and Rilski Orel.

 

[piko1]

Dar-11 bi-plane
Dar-12 high wing
Dar-13 speed plane with higher wing load
farm construction and wooden wings

From Aerofan : book 7-8 1999

 

[hesham]

Great find Piko,


but DAR-12,was it a light aircraft ?.

 

[Apophenia]

Piko do have any dates for these three designs?

 

[piko1]

DAR - 12 was light aircraft yes and no i don't have any data only the designations

 

[hesham]

Thank you Piko1 very much.

 

[piko1]

i think that the thread must be renamed and instead 1945 to be to 1954 that's the year that the old DAR ceases to exist

ps. hesham sorry for my late response

 

[hesham]

Hi,


DAR Solo is a single seat open cockpit strut braced high-wing ultra light monoplane
with tricycle landing gear and 28 hp Hirth F33 engine.


DAR Speedster is closed cockpit strut braced high-wing monoplane


DAR also has those aircraft and projects;


Solo 120,Prio,Scooter,Priora,F-7 Speedy,Agrar,DAR-241,TwinStar Solo,Trimotor Solo,
Glider-I,Glider-II,Motor Glider,Caesar,Panther,F-7,T-2A,VDM,Zvero, Hi Zvero and
a UAV.


Also the DAR-27M Spector;


http://www.aeroplanesdar.com/resources/manuals/card-models/DAR-27M_Spector.pdf
http://www.aeroplanesdar.com/products.php
http://www.aeroplanesdar.com/projects.php

 

[hesham]

And;

 

[hesham]

The end;

 

[c460]

DAR-11 Lyastovitsa ('Swallow'), 1941, 50 planned licenced Czech Avia B.135s [unbuilt]

- NB: Lazarov was involved in final detail design of DAR-11 Lyastovitsa ('Swallow'), the planned for licence-built Avia B.135s. The DAR-11 may have been assigned either Laz-4 or Laz-5 designation

In the book Aircraft Manufacture in Bulgaria by Nedialkov (p.103), it is said that Lazarov designed the DAR-11 fighter as an evolution of the DAR-10A with a more powerful engine, but it was rejected because a contract was already signed for licence building of the Avia B.135.
But on p.23 of the same book, the DAR-11 Lastovica is described as a home-built B.135. So it seems that the designation was reallocated indeed.

 

[Apophenia]

Thanks for the DAR-11 confirmation c460!

 

[c460]

There are details about Laz- designations in this Bulgarian page written by Ivan Borislavov, a reputable author:
http://history.rodenkrai.com/new/bylgarska_aviaciq/prof._inj._cvetan_lazarov_i_bylgarskoto_samoletostroene_ii_chast/vsichki_stranici.html
From the machine translation, I understand that the year "1947" was to be painted on the nose of the first postwar prototype, but it was somehow turned into "Laz-7". I don't fully understand the description of Lazarov's reaction, but anyway the aircraft was to be flown to Yugoslavia soon, there was no time for a repaint and the name remained.
The same page says that any attempt to reconstruct earlier Laz- designations (from 1 to 6) has no basis in reality.

Laz-7M - 1951-54 trainer/light attack, M-11FR radial

The Laz-7M had the alternate designation ZAK-1, ZAK being an abbreviation of something like "Collective Work from the Factory". Apparently everybody called the plane Laz-7M in practice, but the name ZAK-1 appeared on the factory nameplate.

Laz-12 single-seat aerobatic aircraft, 1 prototype 1954.
-- http://reocities.com/Paris/Cabaret/2459/Aviation/BGplanes/After1945/Laz12.htm

It is more accurately described as an advanced trainer or fighter trainer, I don't think it was designed as an aerobatic aircraft.

 

[hesham]

For Lazarov;

http://hadhm.tu-sofia.bg/Ts_Lazarov.html

 

[hesham]

From JAWA 2007/2008,

unknown Project for DAR ?.

 

[Apophenia]

I've replaced most of the dead links. The title of this thread should be revised? Perhaps:

Bulgarian Designations: DAR (to 1954), Lazarov, & Aeroplanes DAR Ltd​

 

[stan57]

Gliders: Albatros-LZ, Rilski Orel, Chuchuliga are WS Komar licensed gliders.
Looking for a picture of Chuchuliga.
On 06-06-1937, Jan Pełka made a flight test of the SG.3 bis36 license glider in Bożuriszcze. Are there any photos of this glider?
In 1959, the Jastreb LZ-101 glider was tested.

 

[hesham]

the Jastreb LZ-101 glider was tested

Welcome aboard Stan,

what was this designation ?.

 

[Maveric]

LZ-101 was no designation but the registration.

 

[Apophenia]

Ястреб - usually transliterated as Yastreb - was not a DAR product. It was built at the VSR Musachevo - ie: the workshops at Musacheva airfield - at the bequest of the Central Committee of DOSO (Voluntary Organization for the Assistance to Defense). This sailplane doesn't seem to have received a designation.

The Yastreb first flew in 1958. Perhaps official trials did not begin until the following year?