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France's Bloch MB 174, Bloch 174, reconnaissance; Bloch MB 175 light bomber

Photos

Bloch MB 174 bomber:
France's Bloch MB 174 bomber
Aeronautics Aircraft Spotters' Handbook
Bloch MB 174 bomber:
France's Bloch MB 174 bomber
Aeronautics Aircraft Spotters' Handbook

Design

The MB 170 was the design to meet the requirements for a light bomber. These requirements changed and the new design was the MB 174. The MB 174 had a newly designed fuselage.

Prototype

The MB 170 prototype first flew on February 15, 1938.

The MB 174 prototype first flew on January 5, 1939.

The MB 175 prototype first flew in December 1939.

The MB 176 prototype first flew in September 1939.

Production

  • Bloch MB 170 prototypes: 2
  • Bloch MB 174: 59 First production arrived in November 1939. An initial order of 50 was given.
    • Manufacturer: SNCASO
    • Production: ? - May 1940: 50
  • Bloch MB 175: 80 Manufacturing deliveries first started in May 1940.
  • Bloch MB 175 after war: 80
  • Bloch MB 176: 6
  • Total: 227

Variants

  • Bloch MB 170: Prototype. Had Gnome-Rhône 14N (950 HP) engines.
  • Bloch MB 174: Reconnaissance.
  • Bloch MB 174 A3:
  • Bloch MB 175: Bomber.
  • Bloch MB 175 B3:
  • Bloch MB 176: Bomber. Had Pratt & Whitney Twin Wasp engines.

Usage

First Use in Combat

Capt. Antoine de Saint-Exupery / Capt. Antoine de Saint-Exupéry flew the first sortie in a Bloch MB 174 in March 1940 / March 29, 1940.

Survivors

About half of the MB 174s were destroyed during the invasion of France. Some of the survivors went to Tunisia where they later served in 1943.

Some of the MB 175s also ended up in North Africa.

Luftwaffe Use

The Luftwaffe received 56 completed MB 175s and were used as trainers.

Postwar French Navy

After World War II the French Navy took delivery of 80 MB 175T torpedo bombers. The last one was delivered in 1950.

Specifications

  Bloch MB 174 and MB 175
Type  
Crew  
Engine (Type) 2: Gnome-Rhône 14N 48/49
Cylinders Radial 14
Cooling  
Net HP 1,140 each
Propeller blades 3 each
Dimensions  
Span 58' 9.5"
17.92 m
Length 40' 1.5"
12.23 m
Height 11' 8"
3.56 m
Wing area  
Weight  
Empty  
Loaded  
Performance  
Speed  
Cruising speed  
Climb  
Service ceiling  
Range  
Armament  
Wings, dorsal, ventral 7: 7.5 mm MG
  Bloch 174 Bloch MB 174 A3
Type Bomber, Reconnaissance Light bomber, Reconnaissance, Target marker
Crew 3 3
Engine (Type) 2: Gnome-Rhône
2: Gnome-Rhône 14
 
Cylinders Radial, Radial 14  
Cooling Air  
Net HP 1,030 each, 1,140 each  
Propeller blades    
Dimensions    
Span 58' 7", 58' 9"  
Length 40' 1"  
Height 11' 7"  
Wing area    
Weight    
Empty   12,346 lb
5,600 kg
Loaded 13,600 lb, 15,784 lb 15,784 lb
7,160 kg
Performance    
Speed 310 mph  
Speed @ 17,060' /
5,200 m
329 mph  
Cruising speed    
Climb    
Service ceiling 36,090'  
Range 1,025 miles, 1,100 miles  
Armament    
Wings, dorsal, ventral 7: MG  
Bombs 880 lb 1,102 lb
500 kg
  Bloch MB 175 B3
Type Attack aircraft, Light bomber
Crew 3
Engine (Type)  
Cylinders  
Cooling  
Net HP  
Propeller blades  
Dimensions  
Span  
Length  
Height  
Wing area  
Weight  
Empty 12,478 lb
5,660 kg
Loaded 17,688 lb
8,023 kg
Performance  
Speed @ 17,060' /
5,200 m
335 mph
539 kph
Cruising speed 244 mph
393 kph
Climb  
Service ceiling  
Range  
Range with 1,320 lb /
600 kg bomb load
993 miles
1,600 km
Maximum ferry range 2,050 miles
3,300 km
Armament  
Bombs 1,323 lb
600 kg

Sources:

  1. Aircraft of WWII, Stewart Wilson, 1998
  2. World War II Airplanes Volume 1, Enzo Angelucci, Paolo Matricardi, 1976
  3. Aeronautics Aircraft Spotters' Handbook, Ensign L. C. Guthman, 1943
20th Century American Military History Crucial Site