A30 Cruiser Tank Mk VIII Challenger

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Název: Name:	A30 Cruiser Tank Mk VIII Challenger	A30 Cruiser Tank Mk VIII Challenger
Originální název: Original Name:	A30 Cruiser Tank Mk VIII Challenger
Kategorie: Category:	křižníkový tank	cruiser tank
Výrobce: Producer:	DD.12.1943-DD.09.1944 Birmingham Railway Carriage & Wagon Co. Ltd., Birmingham
Období výroby: Production Period:	DD.12.1943-DD.09.1944
Vyrobeno kusů: Number of Produced:	200
Prototyp vyroben: Prototype Built:	DD.MM.1942
Osádka: Crew:	5
Technické údaje: Technical Data:
Bojová hmotnost: Combat Weight:	33022 kg	72800 lb
Délka s kanónem dopředu: Length with Gun Forward:	8147 mm	26 ft 8 ¾ in
Délka korby: Hull Length:	? mm	?
Celková šířka: Overall Width:	2908 mm	9 ft 6 ½ in
Celková výška: Overall Height:	2775 mm	9ft 1.25in
Světlá výška: Ground Clearance:	~406 mm	~1 ft 4 in
Šířka pásu: Track Width:	394 mm	1 ft 3 ½ in
Měrný tlak: Ground Pressure:	? MPa	? psi
Pancéřování: Armour:	20 - 102 mm	0.8 - 4.0 in
Pohon: Propulsion:
Typ: Type:	Rolls-Royce Meteor - vidlicový - benzínový, vodou chlazený - počet válců: 12	Rolls-Royce Meteor - V-desing - gasoline, water cooled - number of cylinders: 12
Výkon: Power:	447.4 kW při ? ot/min	600 bhp at ? rpm
Převodové ústrojí: Transmission:	Merrit-Brown Z.5 - manuální převodovka - počet stupňů: 5+1	Merrit-Brown Z.5 - manual gearbox - number of gears: 5+1
Výkony: Performance:
Rychlost na silnici: Road Speed:	52 km/h	32 mph
Rychlost v terénu: Cross-country Speed:	24 km/h	15 mph
Jízdní dosah po silnici: Cruising Range on Road:	193 km	120 mi
Jízdní dosah v terénu: Cross-country Cruising Range:	? km	? mi
Překonávání překážek: Obstacles Crossing:
Svah: Gradient:	? °	? %
Boční náklon: Side Slope:	? °	? %
Překročivost: Trench Crossing:	2,59 m	102 in
Výstupnost: Vertical Obstacle:	0,91 m	36 in
Brodivost: Fording Depth:	1,37¹⁾ m	54 in¹⁾
Výzbroj: Armament:
Hlavní: Main:	OQF 17 pounder - ráže: 76,2 mm - zásoba munice: 42 (48 ?) nábojů	OQF 17 pounder - calibre: 76.2 mm - ammunition: 42 (48 ?) rounds
Vedlejší: Secondary:	spřažený kulomet Browning - ráže: 7,62 mm - zásoba munice: 3750 nábojů	Browning co-axial machine gun - calibre: 0.3 - ammunition: 3750 rounds
Uživatelské státy: User States:
Poznámka: Note:	Tank, Cruiser, Mk.VIII, Challenger (A30) ¹⁾ s přípravou	Tank, Cruiser, Mk.VIII, Challenger (A30) ¹⁾ with preparation
Zdroje: Sources:	https://mailer.fsu.edu/~akirk/tanks/ https://ww2photo.mimerswell.com/ Christopher Chant: Encyklopedie tanků

URL : https://www.valka.cz/A30-Cruiser-Tank-Mk-VIII-Challenger-t73214#259596 Version : 0

A30 Challenger

History of the creation
Commonly used in 1942, the Cromwell type, while agile and decently armoured, by early 1942 it was clear that its 6-pounder gun would soon be inadequate for the new German tanks. And so the year saw the selection of the excellent 17-pounder gun as the new tank weapon. The tank's Cromwell turret proved to be too small for such a large, powerful and heavy gun. As the expected size, weight and circulation turret of the new turret exceeded the capabilities of the existing chassis, a new chassis had to be designed.
This was solved by extending the chassis by one running wheel. The new turret featured a relatively tall and slender silhouette and perpendicular walls, As such a turret would have cost the lives of too many British soldiers it was decided to use the existing and decidedly more suitable Sherman tank, re-armed with a Firefly version fitted with the same gun. However, in 1943, for emergency reasons, it was decided to produce a production run of 260 units.

Armament
A 17-pounder towed anti-tank gun of 76.2 mm calibre, the projectile weighing 7.71 kg and having a muzzle velocity of 884 m/s (barrel length L/55.1) penetrated 130 mm armour inclined at 30° at 915 m.
The tank version was designated 77 mm OQF Mk. 2, the weight of the weapon was 681 kg, the barrel length was L/49.2, and the chamber was modified for shorter but wider cartridges (easier handling in the confined conditions of the tank turret. The standard anti-tank missile reached a velocity of 792 m/s and penetrated 109 mm of armour inclined at 30° at a distance of 455 m.

Combat service
The pieces produced became part of tank regiments equipped with Cromwell tanks deployed in 1944-45 in northwestern Europe, for which they provided anti-tank protection.

Further development of the type
A30 Challenger II - with a lower turret and lower overall weight, ended up as a prototype only.
A30 Avenger - self-propelled gun

sériový

prototyp

URL : https://www.valka.cz/A30-Cruiser-Tank-Mk-VIII-Challenger-t73214#170758 Version : 0

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Despite the relatively large size of the turret, it was not possible to implement the (probably original) intention of the BESA machine gun as a coupled main armament on the A30 Challenger - therefore the 7.62 mm Browning machine gun was used

The vehicle (T271904) in the above picture bears typical features of the type from the beginning of production: It has no "applique" armour on the hull nose and sloping plates of the turret armour, nor the arc strip of armour protecting the turret turret from hit and wedging hazards. The gun has a muzzle brake with square holes, and there is no auxiliary frame sight installed on the turret ceiling in front of the commander's hatch to guide the gunner quickly to the detected target.

The markings (the red-yellow-black emblem on the turret sides) on the vehicle belong to the Gunnery School at Lulworth Camp, where the vehicle underwent gunnery trials at the same time as further extensive tests at the FVPE (Fighting Vehicle Proving Establishment) in Chertsey...
Based on their results, measures were later applied in production to increase the vehicle's resistance to tank and anti-tank fire.

Because the risk of the turret being wedged by a (tank) shell in combat was considered high, a technical feature unique at the time was applied to the design of the vehicle: the turret as such was pivotally mounted on the bottom of the hull (the main supporting element was therefore not the usual ball track in the hull ceiling) and the turret could be (without the need to leave the vehicle) lifted from the inside by a mechanical jack, thus increasing the gap between the turret armour and the hull ceiling armour so that such a wedging could be released.

URL : https://www.valka.cz/A30-Cruiser-Tank-Mk-VIII-Challenger-t73214#275128 Version : 0

T271904 likely include (from the rc point of view) among the best photographically documented Challengery. In the course of the tests in the FVPE and in the Gunnery School was taken very extensive and quite detailed photographs, covering this vehicle, indeed from all points of view including the image of the vehicle from a bird's-eye view (small image, but still) and capturing all the details necessary for the construction of the model....

URL : https://www.valka.cz/A30-Cruiser-Tank-Mk-VIII-Challenger-t73214#275182 Version : 0

Some machines from the Czechoslovak Independent Armoured Brigade in Great Britain were included in the armament of the Czechoslovak Army.

Challenger na jednom z cvičení Československej armády koncom 40. rokov.

URL : https://www.valka.cz/A30-Cruiser-Tank-Mk-VIII-Challenger-t73214#259246 Version : 0

Reklama

Oorlogsmuseum Overloon, my own photo

URL : https://www.valka.cz/A30-Cruiser-Tank-Mk-VIII-Challenger-t73214#569649 Version : 0

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50 - Tank

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Období výroby:
Production Period:

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Vyrobeno kusů:
Number of Produced:

Prototyp vyroben:
Prototype Built:

Osádka:
Crew:

Technické údaje:
Technical Data:

Bojová hmotnost:
Combat Weight:

(kg)

(lb)

Délka s kanónem dopředu:
Length with Gun Forward:

(mm)

(ft in)

Délka korby:
Hull Length:

(mm)

(ft in)

Celková šířka:
Overall Width:

(mm)

(ft in)

Celková výška:
Overall Height:

(mm)

(ft in)

Světlá výška:
Ground Clearance:

(mm)

(ft in)

Šířka pásu:
Track Width:

(mm)

(ft in)

Měrný tlak:
Ground Pressure:

(MPa)

(psi)

Pancéřování:
Armour:

Pohon:
Propulsion:

Typ:
Type:

Výkon:
Power:

(kW) při

(ot/min)

(bhp) at

(rpm)

Převodové ústrojí:
Transmission:

Výkony:
Performance:

Rychlost na silnici:
Road Speed:

(km/h)

(mph)

Rychlost v terénu:
Cross-country Speed:

kmh

(mph)

Jízdní dosah po silnici:
Cruising Range on Road:

(km)

(mi)

Jízdní dosah v terénu:
Cross-country Cruising Range:

(km)

(mi)

Překonávání překážek:
Obstacles Crossing:

Svah:
Gradient:

(°)

(%)

Boční náklon:
Side Slope:

(°)

(%)

Překročivost:
Trench Crossing:

(m)

(in)

Výstupnost:
Vertical Obstacle:

(m)

(in)

Brodivost:
Fording Depth:

(m)

(in)

Výzbroj:
Armament:

Hlavní:
Main:

Vedlejší:
Secondary:

Uživatelské státy:
User States:

Poznámka:
Note:

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A30 Cruiser Tank Mk VIII Challenger

50 - Tank

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