ANBO III
{{Infobox aircraft
|name=ANBO III
|image=Anbo3.jpg
|caption=ANBO III with Walter Mars engine
|type=Military advanced trainer aircraft
|manufacturer=Karo Aviacijos Tiekimo Skyrius
|designer=Antanas Gustaitis
|first_flight=1929
|introduction=
|retired=
|status=
|primary_user=
|more_users=
|produced=
|number_built=9
|developed_from=ANBO II
|developed_into=ANBO IV
}}
The ANBO III was a parasol-wing monoplane training and utility aircraft designed for the Lithuanian Army in 1929. It became the first aircraft of Lithuanian design to be built in series, with two batches of four aircraft produced in 1930 and 1931. The ANBO IIIs also saw service as reconnaissance machines.
Development & Production
Production aircraft began rolling off the line in the autumn of 1930, starting with Number 39 (39 is a designation, it was not the 39th production aircraft) in August, which passed tests on September 9, being flown by Gustaitis himself. Three more were completed by October, 1931.{{Cite web|url=https://www.plienosparnai.lt/page.php?29|title=ANBO III - Lietuvos Aviacijos Istorija 1919 - 1940 m.|website=www.plienosparnai.lt}} The second series, starting in the spring of 1931 incorporated the following changes: fuselage lengthened by 1/2 meter, larger fuel tanks installed, and turning rudders installed on all except Number 33 & Number 40.
In early 1931 the ANBO III was flying with a {{convert|145|hp|kW|abbr=on|disp=flip}} Walter Mars I, a nine-cylinder radial engine. The Czech-built engines started showing signs of failure after fewer than 200 hours, so British engines were procured. One Armstrong Siddeley Mongoose was ordered and tested on Number 48. This was the same weight as the Mars I and proved reliable so 4 more were ordered between 1934 and 1935. Six Armstrong Siddeley Genet Major were ordered for the ANBO V.
Operators
;{{flag|Lithuania|1918}}
Specifications (Walter Mars I engine)
{{Aircraft specs
|prime units?=met
|genhide=
|crew=Two
|capacity=
|length m=6.90
|length note=
|span m=10.55
|span note=
|height m=2.64
|height note=
|wing area sqm=18.20
|wing area note=
|aspect ratio=
|airfoil=
|empty weight kg=580
|empty weight note=
|gross weight kg=880
|gross weight note=
|max takeoff weight kg=
|max takeoff weight lb=
|max takeoff weight note=
|fuel capacity=
|more general=
|eng1 number=1
|eng1 name=Walter Mars I
|eng1 type=9-cylinder radial
|eng1 hp=145
|eng1 note=at 1,800 rpm
|power original=
|more power=
|prop blade number=2
|prop name=
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|perfhide=
|max speed kmh=185
|max speed note=at ground level
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|endurance=4 hr
|ceiling m=4800
|ceiling note=service
|g limits=
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|time to altitude=12 min to {{convert|2000|m|ft|abbr=on}}
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}}
References
Further reading
{{commons category}}
- {{cite book |last= Taylor |first= Michael J. H. |title=Jane's Encyclopedia of Aviation |year=1989 |publisher=Studio Editions |location=London }}
{{ANBO aircraft}}
Category:Parasol-wing aircraft
Category:Single-engined tractor aircraft