ANBO IV
# ANBO IV

The ANBO IV was a reconnaissance aircraft used by the Lithuanian Air Force in World War II, designed by Lithuanian aircraft designer Antanas Gustaitis. The Lithuanian ANBO 41 was far ahead of the most modern foreign reconnaissance aircraft of that time in structural features, and most importantly in speed and in rise time. All ANBO 41 aircraft were likely destroyed during World War II.

## Development

The ANBO IV was developed from the ANBO III trainer. The design was supervised by Colonel Antanas Gustaitis. The first flight took place on 14 July 1932, the prototype being powered by a Wasp engine. After successful trials, series production began. Thirteen series-built aircraft were powered by British Bristol Pegasus engines and were manufactured by Lithuanian Aircraft State Factory. It could be armed with two pairs of light machine guns and could carry 200 kg of bombs.

## Operational history

ANBO IVs were introduced into Lithuanian Air Force in 1934 and shortly before that a few aircraft made demonstration flights in a few European countries: France, United Kingdom, Soviet Union and most Scandinavian countries. Between 25 June and 29 July 1934, three aircraft commanded by colonel Gustaitis flew 10,000 km (6,200 mi) route.

ANBO IV and ANBO 41 aircraft equipped one and two reconnaissance squadrons respectively in Lithuanian Air Force, at the time of the Soviet occupation of the Baltic states in the summer of 1940.

A photo exists showing that at least one Anbo IV or Anbo 41 survived this period and was operated by the Luftwaffe during the German occupation.

## Variants

### ANBO IV

    Designation of prototype and 13 serial-built aircraft used for night and day reconnaissance.

### ANBO 41

    Second production version with more powerful engine and three-blade wooden propeller. It was then the only aircraft in Europe to employ a wooden three-blade propeller.
* ANBO-41 No.671 of the first serial production in Kaunas (1937)
* ANBO-IVM of the second series (1935)
* ANVO IV in an aerodrome
* Three ANBO-41s
* ANBO 41 replica as found at Kaunas Aerodrome

## Operators

### Lithuania

* Lithuanian Air Force

### Soviet Union

* Soviet Air Force incorporated Lithuanian units with equipment and personnel.

### Germany

* Luftwaffe used at least one Anbo 41 captured from the Soviet Air Force for training and liaison purposes in 1941–1942.

## Specifications (ANBO 41)

General characteristics

* Crew: two, pilot and observer
* Length: 8.80 m (28 ft 10 in)
* Wingspan: 13.20 m (43 ft 4 in)
* Wing area: 29.0 $m^2$ (312 sq ft)
* Empty weight: 1,500 kg (3,310 lb)
* Gross weight: 2,300 kg (5,070 lb)
* Powerplant: 1 × Bristol Pegasus XXIII , 750 kW (1,010 hp)

Performance

* Maximum speed: 360 km/h (220 mph, 190 kn)
* Range: 800 km (500 mi, 430 nmi)
* Service ceiling: 9,000 m (29,500 ft)
* Rate of climb: 6.9 m/s (1,360 ft/min)

Armament

* 2 × fixed, forward-firing machine guns
* 2 × flexible machine guns for observer
* Up to 200 kg (440 lb) of bombs
