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Renard R.37

Single-Seat All-Metal Monoplane Fighter Prototype Aircraft

Renard R.37

Single-Seat All-Metal Monoplane Fighter Prototype Aircraft

OVERVIEW
SPECIFICATIONS
ARMAMENT
VARIANTS
HISTORY
MEDIA
OVERVIEW



The Renard R.37 was not yet ready when the Germans invaded Belgium in May of 1940 - the prototype was flown for the first time by a Luftwaffe pilot.
National Flag Graphic
ORIGIN: Belgium
YEAR: 1940
STATUS: Cancelled
MANUFACTURER(S): Renard Brothers - Belgium
PRODUCTION: 1
OPERATORS: Belgium (cancelled); Nazi Germany (tested)
SPECIFICATIONS



Unless otherwise noted the presented statistics below pertain to the Renard R.37 model. Common measurements, and their respective conversions, are shown when possible.
CREW: 1
LENGTH: 27.56 feet (8.4 meters)
WIDTH: 38.22 feet (11.65 meters)
HEIGHT: 9.51 feet (2.9 meters)
WEIGHT (EMPTY): 3,990 pounds (1,810 kilograms)
WEIGHT (MTOW): 5,512 pounds (2,500 kilograms)
ENGINE: 1 x Gnome-Rhone 14N-21 14-cylinder air-cooled radial piston engine developing 1,100 horsepower and driving a three-bladed propeller unit at the nose.
SPEED (MAX): 317 miles-per-hour (510 kilometers-per-hour; 275 knots)
RANGE: 621 miles (1,000 kilometers; 540 nautical miles)
CEILING: 32,808 feet (10,000 meters; 6.21 miles)




ARMAMENT



PROPOSED:
2 x 13.2mm Heavy Machine Guns (HMGs) in wings (one per wing).
4 x 7.7mm Medium Machine Guns (MMGs) in wings (two per wing).
VARIANTS



Series Model Variants
• R.37 - Base Series Designation; lone prototype completed and flown in 1940; unknown fate.
• R.37B - Proposed two-seat ground-attacker form of the R.37 fighter model.


HISTORY



Detailing the development and operational history of the Renard R.37 Single-Seat All-Metal Monoplane Fighter Prototype Aircraft.  Entry last updated on 5/9/2018. Authored by Staff Writer. Content ©www.MilitaryFactory.com.
The brothers Renard of Belgium ultimately failed in their earlier attempts to secure fighter production contracts with the Belgian Air Force prior to World War 2 (1939-1945). This included the Epervier ("Sparrowhawk") of the late-1920s and the R.36 all-metal monoplane fighter of the early-1930s (both detailed elsewhere on this site). With war against Germany imminent, there proved a sense of urgency in Belgian aero-industry to develop an in-house solution for the ultimate defense of the homeland. To this point, the air force service was stocked mainly by foreign types.

The work on the now-abandoned R.36 was not a total loss with the demise of the sole prototype in January of 1939 for its framework now made up the basis of a new all-metal monoplane fighter of all-modern design. This led to the "R.37" being formulated against the backdrop of impending invasion from neighboring Germany.

The new fighter incorporated the Gnome-Rhone 14N-21 14-cylinder air-cooled radial piston engine offering upwards of 1,100 horsepower instead of the liquid-cooled inline type of 900+ horsepower seen in the R.36 model. A vented ring was used for aspirating the large radial as an oversized spinner was set at the propeller hub to incorporate a noticeable streamlined quality. Another notable design feature was internal as some of the generated exhaust gasses were recycled in the action to produce a slight boost to overall thrust.

As a combat-centric fighter type, the R.37 was envisioned with an armament load out of 2 x 13.2mm heavy machine guns and 4 x 7.7mm medium machine guns, all mounted to the wings (unlike the R.36 which was to feature an engine-mounted 20mm autocannon as well as wing-mounted machine guns).




Outwardly, the R-37 mimicked most of the form and function of its predecessor: its wing shape (largely rounded) was similar in design and its placement well-ahead of midships was nearly identical. The cockpit was positioned at midships with limited vision and the tail unit was conventional. Metal construction and metal skinning was used throughout the aircraft. The undercarriage was retractable and of the "tail-dragger" arrangement - a common trait for fighters of the period. The noticeable difference between the R.37 and its earlier R.36 form was the large spinner situated at the nose and the oversized nose section as a whole - this forced upon the engineers to better house the larger air cooled radial engine fit.

The R.37 was put on static display in July of 1939 at Salon de Bruxelles to help showcase Belgian combat fighter mastery under the shadow of war - but at this point the sole prototype had yet to fly. Its time had run out for, in September of 1939, Germany invaded neighboring Poland to begin World War 2 (1939-1945) and, from there, Hitler turned his attentions to France and Low Countries, resulting in the fall of Belgium in May of 1940. With this, the R.37 was confiscated by the arriving and occupying Germans and, unknowingly, the prototype received its first-flight (under Luftwaffe pilot control) that same year. Beyond this seemingly successful flight, little more was had on the R.37 project for there appears to be no continuing record.

Renard was also working on a two-seat ground attacker form of the R.37 to be designated as the "R.37B" but little traction was gained on this variant prior to the German invasion. The R.38 fighter form was developed in parallel but it, too, suffered with the German invasion of 1940 and was scrapped by the occupiers.




MEDIA









Our Data Modules allow for quick visual reference when comparing a single entry against contemporary designs. Areas covered include general ratings, speed assessments, and relative ranges based on distances between major cities.

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Relative Maximum Speed Rating
Hi: 400mph
Lo: 200mph
    This entry's maximum listed speed (317mph).

    Graph average of 300 miles-per-hour.
City-to-City Ranges
NYC
 
  LDN
LDN
 
  PAR
PAR
 
  BER
BER
 
  MSK
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  TKY
TKY
 
  SYD
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  LAX
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  NYC
Graph showcases the Renard R.37's operational range (on internal fuel) when compared to distances between major cities.
Aviation Era
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Pie graph section
Pie graph section
Pie graph section
Pie graph section
Useful in showcasing the era cross-over of particular aircraft/aerospace designs.
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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Supported Roles
A2A
Interception
UAV
Ground Attack
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Training
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Anti-Ship
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EW
Maritime/Navy
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Aerial Tanker
Utility/Transport
VIP
Passenger
Business
Recon
SPECOPS
X-Plane/Development
A2A=Air-to-Air; UAV=Unmanned; CAS=Close Support; ASW=Anti-Submarine; AEW=Airborne Early Warning; MEDEVAC=Medical Evac; EW=Electronic Warfare; SAR=Search-Rescue
Supported Arsenal
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Graphical image of an aircraft heavy machine gun
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