Sunderland Mk IIIa

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Sunderland Mk IIIa
General characteristics
7 peopleCrew
14.5 tEmpty weight
26.3 tTake-off weight
Flight characteristics
6 096 mCeiling
sec40.1/40.1/35.0Turn Time
168 km/hStalling speed
4 х Bristol Pegasus XVIIIEngine
airCooling system
Speed of destruction
414 km/hStructural
450 km/hGear
Offensive armament
4 х 7.7 mm Browning machine gunWeapon 1
2 000 roundsAmmunition
1 001 shots/minFire rate
Defensive armament
4 х 7.7 mm Browning machine gunTurret
4 000 roundsAmmunition
1 000 shots/minFire rate
2 х 7.7 mm Browning machine gunTurret
1 000 roundsAmmunition
1 000 shots/minFire rate
2 х 7.7 mm Browning machine gunTurret
2 000 roundsAmmunition
1 000 shots/minFire rate
Suspended armament
8 х 250 LB G.P. Mk.IV bombSetup 1
4 х 500 LB G.P. Mk.IV bombSetup 2
4 000 Rp icon.pngResearch
2 100 Sl icon.pngPurchase
Sl icon.png1 152 / 1 450/1 206 / 1 518/370 / 465Repair
600 Sl icon.pngCrew training
2 100 Sl icon.pngExperts
40 Ge icon.pngAces
x 1.00 Rp icon.pngReward for battle
Msg-info.png This page is about the aircraft Sunderland Mk IIIa. For the other version, see Sunderland Mk V


The Sunderland Mk IIIa in the garage

The Sunderland Mk IIIa is a Rank I British flying boat/heavy bomber with a battle rating of 2.0 (AB) and 1.7 (RB/SB). This aircraft was introduced in Update 1.57 "Battle March".

General info

Flight Performance

Max Speed
(km/h at 4,267 m)
Max altitude
Turn time
Rate of climb
Take-off run
373 366 6 096 36.3 36.9 4.2 4.2 740
Max Speed
(km/h at ?,000 m)
Max altitude (meters) Turn time (seconds) Rate of climb
Take-off run (meters)
418 394 6 096 33.9 35.0 11.7 6.5 740


Combat flap Take-off flap Landing flap Air brakes Arrestor gear
Wing-break speed
Gear limit
Combat flap
Max Static G
+ -
414 450 520 ~1 ~1
Optimal velocities
< 350 < 350 < 250 > 200
Compressor (RB/SB)
Setting 1
Optimal altitude 100% Engine power WEP Engine power
1,450 m 3,260 hp 4,075 hp
Setting 2
Optimal altitude 100% Engine power WEP Engine power
4,500 m 3,000 hp 3,750 hp

Survivability and armour

  • No armour plating
  • No armour glazing
  • Critical components located in the wings of the aircraft (fuel, engine, controls)


Offensive armament

The Sunderland Mk IIIa is armed with:

  • 4 x 7.7 mm Browning machine guns, nose-mounted (500 RPG = 2,000 total)

Suspended armament

Main article: Suspended armaments

The Sunderland Mk IIIa can be outfitted with the following ordinance"

  • 8 x G.P 250lb Mk.IV bombs
  • 4 x G.P 500lb Mk.IV bombs

Defensive armament

The Sunderland Mk IIIa is defended by:

  • 2 x 7.7 mm Browning machine guns, nose turret (1,000 RPG = 2,000 total)
  • 2 x 7.7 mm Browning machine guns, dorsal turret (500 RPG = 1,000 total)
  • 4 x 7.7 mm Browning machine guns, tail turret (1,000 RPG = 4,000 total)

Usage in the battles

Side climbing is essential for the Sunderland Mk IIIa as, whilst it is a very rugged aircraft, the combination of slow climb rate and large bright (white) air frame makes you a very obvious target, meaning that you won't be flying for very long and find upgrading a real chore.

However don't be scared if an enemy plane is coming at you, chances are that if they don't have anything more than small calibre machine-guns, they aren't going to hurt you that badly. Focus on getting to your target, bombing and then returning to reload. Flying the Sunderland is like a shuttle-bus, focus on your target and try not to get distracted along the way, as it's very hard to regain your energy once lost. Research engine upgrades as soon as you can, as these will make a massive improvement in your performance, both level flying and climbing.

Manual Engine Control

MEC elements
Mixer Pitch Radiator Supercharger Turbocharger
Oil Water Type
Controllable Not controllable Not controllable Not controllable Separate Not ontrollable Not controllable


Tier Flight performance Survivability Weaponry
I Fuselage Repair Radiator
II Compressor Airframe
III Wings Repair Engine
IV Engine Injection Cover

Pros and cons


  • Very rugged air frame.
  • Very good durability, will absorb a lot of bullets before going down.
  • The Sunderland is a flying boat and thus it can land on water.
  • Good handling with full fuel load.
  • Excellent manoeuvrability and handling with minimum fuel load out.
  • Excellent handling at low speeds.
  • Good acceleration.
  • Excels in destroying ground targets .
  • Has four frontal machine guns.
  • Powerful defensive armament that will deter enemy planes especially biplanes.


  • Structural damage (wing rips) occurs at 260 mph.
  • Landing too hard (on water) can cause major internal damage (i.e. The control cables breaking).
  • No wheels and thus cannot land on an airfield.
  • No armor or protection at all.
  • Cannon armed planes will destroy it very easily .
  • Will be ripped to shreds easily by certain planes with large cannons like the Hurricane Mk IV, Ki-45 otsu and the Ki-44-II otsu
  • Red lines at 245Mph
  • Engines overheat very fast
  • Not responsive when red lining.
  • Only one pilot, no co-pilot unlike other bombers at the tier.
  • Bombs are rather inadequate for its size.
  • No Bomb bay, the bombs are slid from the fuselage onto the wings, thus there is a delay from pressing the space bar (or whatever key is bound). This must be taken into consideration when flying.


Describe the history of the creation and combat usage of the aircraft in more detail than in the introduction. If the historical reference turns out to be too big, take it to a separate article, taking a link to an article about the vehicle and adding a block "/ historical reference" (example: reference) and add a link to it here using the main template. Be sure to include links to sources at the end of the article.


An excellent addition to the article will be video guides, as well as screenshots from the game and photos.

Read also

Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example,

  • reference to the series of the aircraft;
  • links to approximate analogues of other nations and research trees.


Paste links to sources and external resources, such as:

  • topic on the official game forum;
  • page on aircraft encyclopedia;
  • other literature.

Britain bombers
Torpedo  Swordfish Mk I · ▄Avenger Mk II
Dive  V-156-B1
Hydroplanes  ▄Catalina Mk IIIa · Sunderland Mk IIIa · Sunderland Mk V
Light  Blenheim Mk IV · Beaufort Mk VIII · ▄Hudson Mk V · Brigand B 1
Based on A20  ▄Havoc Mk I · ▄Boston Mk I · ▄DB-7
Hampden  Hampden Mk I · Hampden TB Mk I
Wellington  Wellington Mk Ic · Wellington Mk Ic /Late · Wellington Mk III · Wellington Mk X
Halifax  Halifax B Mk IIIa
Stirling  Stirling B Mk I · Stirling B Mk III
Lancaster  Lancaster B Mk I · Lancaster B Mk III
Lincoln  Lincoln B Mk II
Canberra  Canberra B Mk 2 · Canberra B (I) Mk 6
Attackers  ▄Wirraway