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Weber-Sochacki Biplane

Weber-Sochacki

Professor of the Politechnika Lwowska (Lvov Institute of Technology) Zygmunt Sochacki and his assistant Jan Weber designed and begun construction of Farman-inspired aircraft. In November 1910 it made first short flight that ended with damage after it hit an obstacle. A repair was attempted but snowfall caused collapse of the shed in which it was stored.
 
 
 

Warchałowski VI

 

Warchaowski-6
 
From 1910 to 1912 Adolf Warchałowski started designing and building aircraft based roughly on Farman design. Within two years he built 15 aircraft that differed with various details. Warchłowski's planes were highly succesful for a time and gained several records of Austria.
 
 
 
VEF I-16
 
VEF-I16-01
 
The VEF I-16 was a prototype Latvian fighter aircraft designed by Kārlis Irbītis and produced by VEF in 1939 costing about 130,568 Lats.
 
The I-16 was of conventional monoplane layout with a Walter Sagitta supercharged air-cooled V12 engine of Czechoslovak origin, a two-bladed propeller and a low set wing with rounded wingtips. The prototype had fixed undercarriage with aerodynamic fairings, but production models were to have retractable landing gear. The cockpit seat and controls were designed as one unit - they could be assembled totally separately from the rest of the aircraft and then installed as a unit with only six bolts. While the prototype was unarmed, there were provisions for two machine guns in the fuselage, along with the ability to carry one additional gun under each wing.
 
VEF-I16-02
 
In the spring of 1940 Latvian Air Force pilots made the first test flights of the VEF I-16 prototype.
 
After the occupation of Latvia in June 1940, the Soviet authorities ordered that all VEF aircraft be removed from Spilve Airport and, a few weeks later, all parts fabrication and assembly work was ordered suspended pending further instructions from Moscow.
 
VEF-I16-03
 
In March 1941, the I-16's designer Kārlis Irbītis received orders to prepare one example each of the VEF I-12, VEF I-15a and I-15b, I-16, VEF I-17 (two variants) and VEF I-18 to be shipped to Moscow for evaluation. The I-16 still had engine problems and needed further testing, so was left behind and stayed in Riga. Following the German invasion of the Soviet Union, the I-16 managed to make several test flights from an aerodrome in Kalnciems but soon the single example was captured by German forces and tested by the Luftwaffe. The VEF I-16 was used as training aircraft at an aviation school in Torun until 1942.
 
 
Engine: 1 × Walter Sagitta I-SR, 403 kW (540 hp)
Wingspan: 8.23 m (27 ft 0 in)
Wing area: 11.43 m² (123.0 ft²)
Length: 7.30 m (23 ft 11 in)
Height: 2.70 m (8 ft 10 in)
Empty weight: 1,100 kg (2,420 lb)
Loaded weight: 1,540 kg (3,388 lb)
Maximum speed: 483 km/h (261 knots, 300 mph) at 7,900 m (25,900 ft)
Range: 805 km (438 nmi, 500 miles)
Service ceiling: 8,100 m (26,600 ft)
Wing loading: 136 kg/m² (28 lb/ft²)
Power/mass: 220 W/kg (0.13 hp/lb)
Armament: 2x 7.9 mm Browning machine guns
Crew: One
 
VEF-I16-04
 
 
 

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VEF

I-16

VEF-I16-01.jpg 24-3

 

The VEF I-16 was a prototype Latvian fighter aircraft designed by Kārlis Irbītis and produced by VEF in 1939 costing about 130,568 Lats.

 

The I-16 was of conventional monoplane layout with a Walter Sagitta supercharged air-cooled V12 engine of Czechoslovak origin, a two-bladed propeller and a low set wing with rounded wingtips. The prototype had fixed undercarriage with aerodynamic fairings, but production models were to have retractable landing gear. The cockpit seat and controls were designed as one unit - they could be assembled totally separately from the rest of the aircraft and then installed as a unit with only six bolts. While the prototype was unarmed, there were provisions for two machine guns in the fuselage, along with the ability to carry one additional gun under each wing.

 

VEF-I16-02.jpg 24-3

 

In the spring of 1940 Latvian Air Force pilots made the first test flights of the VEF I-16 prototype.

 

After the occupation of Latvia in June 1940, the Soviet authorities ordered that all VEF aircraft be removed from Spilve Airport and, a few weeks later, all parts fabrication and assembly work was ordered suspended pending further instructions from Moscow.

 

VEF-I16-03.jpg 24-3

 

In March 1941, the I-16's designer Kārlis Irbītis received orders to prepare one example each of the VEF I-12, VEF I-15a and I-15b, I-16, VEF I-17 (two variants) and VEF I-18 to be shipped to Moscow for evaluation. The I-16 still had engine problems and needed further testing, so was left behind and stayed in Riga. Following the German invasion of the Soviet Union, the I-16 managed to make several test flights from an aerodrome in Kalnciems but soon the single example was captured by German forces and tested by the Luftwaffe. The VEF I-16 was used as training aircraft at an aviation school in Torun until 1942.

 

Gallery

 

Engine: 1 × Walter Sagitta I-SR, 403 kW (540 hp)

Wingspan: 8.23 m (27 ft 0 in)

Wing area: 11.43 m² (123.0 ft²)

Length: 7.30 m (23 ft 11 in)

Height: 2.70 m (8 ft 10 in)

Empty weight: 1,100 kg (2,420 lb)

Loaded weight: 1,540 kg (3,388 lb)

Maximum speed: 483 km/h (261 knots, 300 mph) at 7,900 m (25,900 ft)

Range: 805 km (438 nmi, 500 miles)

Service ceiling: 8,100 m (26,600 ft)

Wing loading: 136 kg/m² (28 lb/ft²)

Power/mass: 220 W/kg (0.13 hp/lb)

Armament: 2x 7.9 mm Browning machine guns

Crew: One

 

VEF-I16-04.jpg 24-3

 

 

 

Warchałowski II

 
Warchaowski-2
 
From 1910 to 1912 Adolf Warchałowski started designing and building aircraft based roughly on Farman design. Within two years he built 15 aircraft that differed with various details. Warchłowski's planes were highly succesful for a time and gained several records of Austria.
Waco CQC-6
 
The Waco CQC-6 of 1936 was a 4-5 place cabin sesqui-wing biplane. No record of actual production.
 
Engine 285hp Wright R-760
Wingspan: 35'0"
Length: 26'2"
Useul load: 1425 lb
Max speed: 170 mph
Cruise speed: 151 mph
Stall: 55 mph
Range: 580 mi
 
 
 
 


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