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SAF (Armstrong Whitworth) Atlas


Army Co-operation Aircraft (1931)


Aviation / Aerospace

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Image from the Public Domain; British Atlas pictured.

Jump-to: Specifications

Greek industry produced just ten of the Armstrong Whitworth Atlas - the localized versions found to be wanting for performance.



Authored By: Staff Writer | Last Edited: 05/28/2020 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.
After the "Velos" torpedo bomber biplane of 1926 and the "Chelidon" training-reconnaissance biplane of 1927 for the Hellenic Navy, the State Aircraft Factory (SAF) of Greece manufactured a variant of the British Armstrong Whitworth "Atlas" in 1931 under the same name for the Army Co-Operation role. The aircraft was intended from the outset as a budget-friendly alternative to the original and featured only minor changes to its propeller, wings, and powerplant components. However, its performance was soon found to be lacking and only ten were ever taken into service - these destined to lead a short service life in the period prior to World War 2 (1939-1945).

Both the Navy and Air Force of Greece eventually operated some form of the Atlas biplane.

The localized version retained much of the form-and-function of the original including its over-under biplane wing arrangement with parallel strut works and cabling for strength. The mainplanes were set ahead of the pilot's open-air cockpit while an observer sat to his immediate rear in a slightly raised position armed with a trainable machine gun for point defense. The engine was fitted to the nose in the usual way and this was used to drive a simple two-bladed, fixed-pitch propeller unit in tractor arrangement. Under the forward center mass of the aircraft lay its twin-wheeled undercarriage, the tail supported by a simple skid when ground-running. Alternatively, the aircraft could be affixed with floats for waterborne work if need be. The tail unit incorporated a single, large-area rounded vertical fin and low-mounted horizontal planes.

Beyond the aforementioned rear machine gun was a fixed, forward-firing machine gun for the pilot and support was had for up to 4 x 112lb conventional drop bombs under the wings.

As for the original British Atlas, some 478 units were built in all and these were produced from 1927 until 1933, operating until 1935 with the Royal Air Force (RAF) and until 1942 with the Royal Canadian Air Force (RCAF).

Specifications



Service Year
1931

Origin
Greece national flag graphic
Greece

Status
RETIRED
Not in Service.
Crew
2

Production
10
UNITS


State Aircraft Factory (SAF) - Greece / Armstrong Whitworth - UK
National flag of Greece Greece
(OPERATORS list includes past, present, and future operators when applicable)
Ground Attack (Bombing, Strafing)
Ability to conduct aerial bombing of ground targets by way of (but not limited to) guns, bombs, missiles, rockets, and the like.
Intelligence-Surveillance-Reconnaissance (ISR), Scout
Surveil ground targets / target areas to assess environmental threat levels, enemy strength, or enemy movement.


Length
28.5 ft
(8.70 m)
Width/Span
39.5 ft
(12.05 m)
Height
10.5 ft
(3.20 m)
Empty Wgt
2,557 lb
(1,160 kg)
MTOW
4,023 lb
(1,825 kg)
Wgt Diff
+1,466 lb
(+665 kg)
(Showcased structural values pertain to the SAF Atlas production variant)
Installed: 1 x Armstrong Siddeley Jaguar IVC 14-cylinder twin-row air-cooled radial piston engine developing 450 horsepower and driving a two-bladed propeller unit at the nose.
Max Speed
84 mph
(135 kph | 73 kts)
Ceiling
15,420 ft
(4,700 m | 3 mi)
Range
395 mi
(635 km | 1,176 nm)
Rate-of-Climb
855 ft/min
(261 m/min)


♦ MACH Regime (Sonic)
Sub
Trans
Super
Hyper
HiHyper
ReEntry
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030


(Showcased performance specifications pertain to the SAF Atlas production variant. Compare this aircraft entry against any other in our database. View aircraft by powerplant type)
STANDARD:
1 x 0.303" (7.7mm) Vickers Machine Gun in fixed, forward-firing mounting for pilot.
1 x 0.303" (7.7mm) Lewis Machine Gun on trainable mounting in rear cockpit for rear-facing gunner.

OPTIONAL:
4 x 112lb conventional drop bombs carried under the wings.


Supported Types


Graphical image of an aircraft medium machine gun
Graphical image of an aircraft conventional drop bomb munition


(Not all ordnance types may be represented in the showcase above)
Hardpoint Mountings: 4


"Atlas" - Base Series Designation.


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