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Vickers D3E1 Wheel-cum-Track Machine


Experimental Military Vehicle (1928)


Land Systems / Battlefield

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Jump-to: Specifications

The Vickers D3E1 Wheel-cum-Track Machine was solely used for experimental purposes during the interwar period by Britain.



Authored By: Staff Writer | Last Edited: 03/19/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.
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The D3E1 "Wheel-cum-Track" Machine was an inter-war experimental tank design by the Vickers concern of Britain with the project goal of developing a new method to extend the life of track sections on combat vehicles. The design was requested from Vickers by the War Office in 1927 and involved an armored car-like body (conventional roadwheels and all) affixed to a track-and-wheel drive scheme. The idea behind the concept was to allow the vehicle to use its roadwheels during general road travel and its tracks for cross-country travel. The concept proved too complicated and was ultimately abandoned.

As this Vickers experimental utilized both types of running equipment, it was required to carry separate control and drive systems for each arrangement. When on its roadwheels (involving all-solid-tires), drive power was sent to the rear axle only and steering accomplished through the front axle. An Armstrong Siddeley gasoline engine was used to power the vehicle and road speeds could reach up to 30 miles per hour on its roadwheels and up to 13 miles per hour when relying on the track-and-wheel units. A pair of turrets were fitted onto the armored car body with the forward, primary, larger installation showcasing a pair of machine guns over midships and the secondary, smaller aft turret outfitted with a single machine gun.

However, beyond its inherent mechanical complexity, the track sections were deemed too short for the long wheelbase at play, making for a wide turning radius. Comfort for the crew was low as the solid tires gave little cushion. The D3E2 emerged as a second prototype delivered by Vickers but given an open-air armored hull.

Both of these examples were eventually dropped from serious consideration.

Specifications



Service Year
1928

Origin
United Kingdom national flag graphic
United Kingdom

Crew
5
CREWMEN
Production
2
UNITS


Vickers Armstrongs Ltd - UK
National flag of the United Kingdom United Kingdom (cancelled)
(OPERATORS list includes past, present, and future operators when applicable)
Infantry Support
Support allied ground forces through weapons, inherent capabilities, and / or onboard systems.
Armored Car
Design, of typically lightweight nature, providing onroad/offroad capabilities for the scouting or general security roles.
Tank-vs-Tank
Engage armored vehicles of similar form and function.
Reconaissance
Can conduct reconnaissance / scout missions to assess threat levels, enemy strength, et al - typically through lightweight design.
Special Purpose
Special purpose design developed to accomplish an equally-special battlefield role or roles.


Length
17.5 ft
5.33 m
Width
7.9 ft
2.4 m
Height
8.2 ft
2.5 m
Weight
19,004 lb
8,620 kg
Tonnage
9.5 tons
LIGHT
(Showcased structural values pertain to the base Vickers D3E1 Wheel-cum-Track Machine production variant. Length typically includes main gun in forward position if applicable to the design)
Powerplant: 1 x Armstrong Siddeley V8 (TE276) gasoline-fueled engine.
Speed
13.0 mph
(21.0 kph)
Range
119.9 mi
(193.0 km)
(Showcased performance specifications pertain to the base Vickers D3E1 Wheel-cum-Track Machine production variant. Compare this entry against any other in our database)
2 x .303 Vickers machine guns in primary forward turret.
1 x .303 Vickers machine gun in secondary aft turret.


Supported Types


Graphical image of a tank medium machine gun


(Not all weapon types may be represented in the showcase above)
Not Available.


D3E1 - Base Product Name; original prototype model.
D3E2 - Follow-up prototype with open-air body.


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