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Bloch MB.700

France (1940)
Picture of Bloch MB.700 Monoplane Fighter Prototype

The sole prototype that was completed and flown of the Bloch MB.700 fighter was blown up by the conquering Germans in 1940.


Detailing the development and operational history of the Bloch MB.700 Monoplane Fighter Prototype.  Entry last updated on 2/6/2018. Authored by Staff Writer. Content ©www.MilitaryFactory.com

Like other global powers of the 1930s and 1940s, the French at one point entertained the thought of adopting an all-wood fighter amidst growing concerns about scarcity of natural resources during wartime - particularly of metals. In 1936 the French Air Ministry drew up a requirement for a lightweight single-seat fighter to be largely composed of wood and other non-critical materials. Three notable submissions were received from French industry players - Bloch, Arsenal, and Caudron.

Andre Herbemont designed for Bloch the "Model 700"and construction of a prototype was undertaken at Suresnes which now fell under the brand label of Societe Nationale de Construction Aeronautiques du Sud-Ouest (SNCASO). The Model 700 was fitted with a Gnome-Rhone 14M-6 radial piston engine of 700 horsepower output (take-off power) driving a three-blade propeller at the nose. The design lines of the aircraft were clean for the period and sat the pilot under a lightly framed canopy near midships. A "razorback" spine provided the needed internal volume at the expense of vision to the rear of the aircraft. Wings were straight in their general form with rounded tips and the empennage consisted of a single vertical fin and mid-mounted horizontal planes. A "tail-dragger" undercarriage was featured with the main legs retracting inwards into the wings.

It was intended that the production combat form of the aircraft would carry 2 x 20mm Hispano-Suiza HS.404 series cannons and 2 x 7.5mm MAC 1934 machine guns, all contained in the wings. However this weapons fit was never introduced to the test aircraft at any point.
The completed prototype was trucked to the test location at Buc and a first flight held on April 19th, 1940. World War 2 officially began on September 1st, 1939 so there was a growing need to push the aircraft into service at speed. The prototype managed a flight of 50 minutes and showcased strong performance - its listed maximum speed was 342 miles per hour with a service ceiling of 28,550 feet. The fighter could stay airborne for roughly two hours (sans armament).

A second prototype was planned but never built and the German invasion of France in May of 1940 ended all progress on the type. With Buc airfield falling under German control the sole prototype of this promising fighter was destroyed for fear that it was booby-trapped by the French.






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Relative Maximum Speed Rating
Hi: 400mph
Lo: 200mph
    This entry's maximum listed speed (342mph).

    Graph average of 300 miles-per-hour.
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Unit Production Comparison
Comm. Market HI*: 44,000 units
Military Market HI**: 36,183 units
1
1


  * Commercial Market High belongs to Cessna 172.

  ** Military Market High belongs to Ilyushin Il-2.


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Origin: France
Year: 1940
Type: Monoplane Fighter Prototype
Manufacturer(s): Societe des Avions Marcel Bloch - France
Production: 1
Status: Cancelled
Global Operators:
France (cancelled)
Historical Commitments / Honors:

Military lapel ribbon for Operation Allied Force
Military lapel ribbon for the Arab-Israeli War
Military lapel ribbon for the Battle of Britain
Military lapel ribbon for the Battle of Midway
Military lapel ribbon for the Berlin Airlift
Military lapel ribbon for the Chaco War
Military lapel ribbon for the Cold War
Military lapel ribbon for the Cuban Missile Crisis
Military lapel ribbon for the Falklands War
Military lapel ribbon for the French-Indochina War
Military lapel ribbon for the Golden Age of Flight
Military lapel ribbon for the 1991 Gulf War
Military lapel ribbon for the Indo-Pak Wars
Military lapel ribbon for the Iran-Iraq War
Military lapel ribbon for the Korean War
Military lapel ribbon for the 1982 Lebanon War
Military lapel ribbon for the Malayan Emergency
Military lapel ribbon for the attack on Pearl Harbor
Military lapel ribbon for the Six Day War
Military lapel ribbon for the Soviet-Afghan War
Military lapel ribbon for the Spanish Civil War
Military lapel ribbon for the Suez Crisis
Military lapel ribbon for the Vietnam War
Military lapel ribbon for Warsaw Pact of the Cold War-era
Military lapel ribbon for the WASP (WW2)
Military lapel ribbon for the World War 1
Military lapel ribbon for the World War 2
Military lapel ribbon for the Yom Kippur
* Ribbons not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective campaigns/operations.
Measurements and Weights icon
Structural - Crew, Dimensions, and Weights:
Unless otherwise noted the presented statistics below pertain to the Bloch MB.700 model. Common measurements, and their respective conversions, are shown when possible.

Operational
CREW


Personnel
1


Dimension
LENGTH


Feet
24.08 ft


Meters
7.34 m


Dimension
WIDTH


Feet
29.20 ft


Meters
8.9 m


Dimension
HEIGHT


Feet
11.15 ft


Meters
3.4 m


Weight
EMPTY


Pounds
2,183 lb


Kilograms
990 kg


Weight
LOADED


Pounds
4,079 lb


Kilograms
1,850 kg

Engine icon
Installed Power - Standard Day Performance:
1 x Gnome-Rhone 14M-6 radial piston engine developing 700 horsepower and driving a three-bladed propeller in the nose.

Performance
SPEED


Miles-per-Hour
342 mph


Kilometers-per-Hour
550 kph


Knots
297 kts


Performance
CEILING


Feet
28,543 ft


Meters
8,700 m


Miles
5.41 mi

Supported Weapon Systems:

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Graphical image of an aircrat automatic cannon
Armament - Hardpoints (0):

PROPOSED (Never Fitted):
2 x 20mm Hispano-Suiza HS.404 cannons in wings.
2 x 7.5mm MAC 1934 machine guns in wings.
Variants: Series Model Variants
• MB.700 - Base Series Designation; sole prototype completed and flown but destroyed by the advancing Germans who believed it to be booby-trapped.