A brief history of Sunderland S25

The Short Sunderland was the first airship used by British military pilots during World War II (1939-1945). Often regarded as one of the best airships in conflict, the Sunderland exploits some inherent design advantages, including a powerful defensive weapons system and excellent range.

These two qualities played an important role in countering the lethal presence of German anti-submarine warfare submarines in and around infested waters of Allied interests. These head-to-head encounters with the enemy made the Sunderland series famous.

Short Sunderland is a militarized version of the same airship, modeled after the Short C-class "Imperial" used for airliners. Equipped with four engines, the aircraft became the mainstay of search and rescue (SAR) missions, maritime patrol and anti-submarine warfare throughout the war.

The crew quarters hold a total of 10 personnel, including pilots and gunners, as well as required systems and mission specialists.

Standard armament includes 2 x front mounted bow mounted 7.7mm machine guns with fixed fire, 2 x bow mounted machine guns in bow turrets, 2 x 7.7mm machine guns mounted in back turret and 4 x 7,7mm machine guns mounted in rear Stern turret. This defensive arrangement allowed Sunderland to fend off enemy fighter jets if she herself was attacked, and she proved a fairly capable aircraft for the job. Her network of machine guns earned her the nickname "Porcupine" as a German pilot.

However, the Sunderland will really shine in her ordnance carrying capacity. She can be armed with mines, depth charges and conventionally dropped bombs - enemy submarines will be her primary target.

The German submarine crews were so afraid of the series of planes that they worked hard to avoid direct contact with Sunderland.

The

Short Sunderlands are renowned for their skills - known for their anti-submarine role - but equally respected for their search and rescue capabilities. In the end, nearly 750 examples were produced in four different brands - the Mk I, Mk II, Mk IIIA and the most powerful Mk V with its Pratt & Whitney radial piston engine - each model's engine and Radars were installed in different ways as the war went on. The task force based in England could reach the airspace of Greece and Crete, as well as other areas within the operational radius.

Many British squadrons used this versatile airship, and most were regularly seen escorting advancing Allied convoys at sea - a testament to its effectiveness in large-scale operations. The other operators are Australia, Canada, France, New Zealand, Norway, Portugal and South Africa.

Short S25 Sunderland Spec

Basic

Year:
1938
Status:
Retired, out of service
Staff:
9 to 11

Production

[749 units]:
Short Brothers - UK

Roles

- Naval/Navigation

- Reconnaissance (RECCE)

Dimensions

Length:

85.30 ft (26 m)

Width:

112.73 ft (34.36 m)

Height:

10.52m

Weight

Curb Weight:

16,738 kg

MTOW:

60,001 lbs (27,216 kg)

(difference: +23,100 pt)

Performance

4 x Pratt & Whitney R-1830-90 Twin Wasp 14-cylinder air-cooled radial engines, 1,200 hp each.

Performance

Maximum Speed:

217 mph (349 km/h; 188 knots)

Service Limit:

17,864 ft (5,445 m; 3.38 mi)

Maximum range:

2,961 miles (4,765 km; 2,573 nautical miles)

Rate of climb:

750 ft/min (229 m/min)

Armor

Default:

2 x 7.7mm forward machine guns

2 x 7.7mm machine guns in the back turret

2 x 7.7mm machine guns in bow turret

4 x 7.7mm machine guns in the rear turret

Some models are equipped with up to 16 x 7.7mm machine guns, some models are equipped with an additional 2 x 12.7mm heavy Browning machine guns.

Optional:

Maximum bomb load is 4,960 lbs. Artillery includes bombs, depth charges and mines.

Changes

Mk I - First production variant; 75 copies produced.

Mk II - with Pegasus radial engine and ASV. mk II radar system; 55 copies made; newly designed particle floor.

Mk IIIA - Equipped with ASV. Mk III radar; 407 copies made.

Mk V - Final production variant; with Pratt & Whitney radial piston engine and ASV. Radar System Mk VIc; 143 copies made.

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