Difference between revisions of "S.81"

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{{Specs-Card|code=s_81_ar125}}
+
{{Specs-Card
 +
|code=s_81_ar125
 +
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg|ArtImage_{{PAGENAME}}.png}}
 +
}}
  
 
== Description ==
 
== Description ==
−
''In the description, the first part needs to be about the history of and the creation and combat usage of the aircraft, as well as its key features. In the second part, tell the reader about the aircraft in the game. Insert screenshot of the vehicle. If the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle it is talking about.''
+
<!-- ''In the description, the first part should be about the history of and the creation and combat usage of the aircraft, as well as its key features. In the second part, tell the reader about the aircraft in the game. Insert a screenshot of the vehicle, so that if the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle the article is talking about.'' -->
 +
The '''{{Specs|name}}''' was introduced in a time when Italy needed an aircraft capable of covering the large distances of the African Campaign, providing reconnaissance and the ability to carry bombs. Chief designer of the new project, Alessandro Marchetti developed the aircraft based on the Savoia's SM.73 airliner and militarized the vehicle for its intended use. The first prototype flew in 1935 and the aircraft was designated '''SM.81''' ''Pipistrello'' ("Bat"). The aircraft served until 1944 with a total of 534 units built. For its time, the aircraft was considered one of the best medium bombers, but when World War II broke out it was already an outdated design. It served with Italian forces in Spain and Africa, and three were also sent to the Chinese Nationalist Forces but they were lost in training exercises in early 1938.
 +
 
 +
It was introduced in [[Update 1.71 "New E.R.A."]]. The S.81 is distinctive with its three engines, two on the wings and one in the nose. Each engine is less powerful than contemporaries on other aircraft so each engine loss will heavily impact the aircraft's speed, causing it to lose altitude, although the nose engine increases survivability. Three types of turrets are available on the S.81, a dorsal turret on top, a ventral turret on the bottom, and two beam turrets for both sides of the fuselage. All the turrets provide an excellent arc of fires on their sectors, with mutual machine gun fire from more than one turret able to be met in most areas, however these turrets only use 7.7 mm machine guns. The S.81 lacks any sort of armour and the crew is very likely to be injured in attacks, especially from below.
  
 
== General info ==
 
== General info ==
−
=== Flight Performance ===
+
=== Flight performance ===
−
''Describe how the aircraft behaves in the air. Maximum speed, maneuverability, speed and allowable loads - these are the most important characteristics of the vehicle.''
+
{{Specs-Avia-Flight}}
 +
<!--''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.''-->
 +
 
 +
{| class="wikitable" style="text-align:center" width="70%"
 +
! rowspan="2" | Characteristics
 +
! colspan="2" | Max Speed<br>(km/h at 4,000 m)
 +
! rowspan="2" | Max altitude<br>(metres)
 +
! colspan="2" | Turn time<br>(seconds)
 +
! colspan="2" | Rate of climb<br>(metres/second)
 +
! rowspan="2" | Take-off run<br>(metres)
 +
|-
 +
! AB !! RB !! AB !! RB !! AB !! RB
 +
|-
 +
! Stock
 +
| 321 || 310 || rowspan="2" | {{Specs|ceiling}} || 30.1 || 31.3 || 3.9 || 3.9 || rowspan="2" | 450
 +
|-
 +
! Upgraded
 +
| 351 || 335 || 28.0 || 29.0 || 9.4 || 6.3
 +
|-
 +
|}
 +
 
 +
==== Details ====
 +
{| class="wikitable" style="text-align:center" width="50%"
 +
|-
 +
! colspan="5" | Features
 +
|-
 +
! Combat flaps !! Take-off flaps !! Landing flaps !! Air brakes !! Arrestor gear
 +
|-
 +
| ✓ || ✓ || ✓ || X || X    <!-- ✓ -->
 +
|-
 +
|}
 +
 
 +
{| class="wikitable" style="text-align:center" width="50%"
 +
|-
 +
! colspan="7" | Limits
 +
|-
 +
! rowspan="2" | Wings (km/h)
 +
! rowspan="2" | Gear (km/h)
 +
! colspan="3" | Flaps (km/h)
 +
! colspan="2" | Max Static G
 +
|-
 +
! Combat !! Take-off !! Landing !! + !! -
 +
|-
 +
| {{Specs|destruction|body}} || {{Specs|destruction|gear}} || 369 || 348 || 241 || ~4 || ~2
 +
|-
 +
|}
 +
 
 +
{| class="wikitable" style="text-align:center"
 +
|-
 +
! colspan="4" | Optimal velocities (km/h)
 +
|-
 +
! Ailerons !! Rudder !! Elevators !! Radiator
 +
|-
 +
| < 260 || < 270 || < 270 || > 330
 +
|-
 +
|}
  
 
=== Survivability and armour ===
 
=== Survivability and armour ===
−
''Examine the survivability of the aircraft. Note how vulnerable the structure is and how secure the pilot is, whether the fuel tanks are armoured. Describe the armour, if there is any, also mention the vulnerability of other critical aircraft systems.''
+
{{Specs-Avia-Armour}}
 +
<!-- ''Examine the survivability of the aircraft. Note how vulnerable the structure is and how secure the pilot is, whether the fuel tanks are armoured, etc. Describe the armour, if there is any, and also mention the vulnerability of other critical aircraft systems.'' -->
 +
 
 +
* No armour plating
 +
* No armour glazing
 +
* Critical components located at front of aircraft (fuel, pilot, engine, controls)
 +
* More fuel tanks located in wings near fuselage
 +
 
 +
=== Modifications and economy ===
 +
{{Specs-Economy}}
 +
 
 +
When grinding this plane for improvements and modules, focus on the payload first, then the plane performance. Ignore the defensive firepower upgrades as the defensive firepower upgraded is still extremely weak until its the last upgrades you have to get.
 +
 
 +
== Armaments ==
 +
{{Specs-Avia-Armaments}}
 +
=== Suspended armament ===
 +
{{Specs-Avia-Suspended}}
 +
<!-- ''Describe the aircraft's suspended armament: additional cannons under the wings, bombs, rockets and torpedoes. This section is especially important for bombers and attackers. If there is no suspended weaponry remove this subsection.'' -->
 +
{{main|GP 50 (50 kg)|GP 100 (100 kg)|GP 250 (250 kg)|GP 500 (500 kg)}}
 +
 
 +
The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance:
 +
 
 +
* 28 x 50 kg GP 50 bombs (1,400 kg total)
 +
* 16 x 100 kg GP 100 bombs (1,600 kg total)
 +
* 4 x 250 kg GP 250 bombs (1,000 kg total)
 +
* 4 x 500 kg GP 500 bombs (2,000 kg total)
 +
 
 +
=== Defensive armament ===
 +
{{Specs-Avia-Defensive}}
 +
<!-- ''Defensive armament with turret machine guns or cannons, crewed by gunners. Examine the number of gunners and what belts or drums are better to use. If defensive weaponry is not available, remove this subsection.'' -->
 +
{{main|Breda-SAFAT (7.7 mm)|Lewis (7.7 mm)}}
 +
 
 +
The '''''{{PAGENAME}}''''' is defended by:
 +
 
 +
* 2 x 7.7 mm Breda-SAFAT machine guns, dorsal turret (500 rpg = 1,000 total)
 +
* 2 x 7.7 mm Breda-SAFAT machine guns, ventral turret (500 rpg = 1,000 total)
 +
* 1 x 7.7 mm Lewis machine gun, 2 x beam turrets (500 rpg)
 +
 
 +
== Usage in battles ==
 +
<!-- ''Describe the tactics of playing in the aircraft, the features of using aircraft in a team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view, but instead, give the reader food for thought. Examine the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).'' -->
 +
 
 +
S.81 is a well armed beginner bomber for Italy, being able to carry a heavy load of bombs in different sizes. Though it doesn't possess the greatest speed, it's still a bomber for the enemy team to recognize as a threat for its carrying capacity of bombs. Being mixed up with bombers from other nations like [[He 111 H-3]], [[F.222.2]], or [[TB-3M-17-32]], they can easily wipe out enemy bases and airfield.
 +
 
 +
S.81 is armed with 6 x 7.7 mm machine guns: 2 x [[Lewis (7.7 mm)]] and 4 x [[Breda-SAFAT (7.7 mm)]] which is pretty well armed for a low tier bomber. The two Lewis machine guns are placed at the middle rear of the plane in the sides, where they can cover if enemy planes are flying level next to the S.81. Meanwhile, the 4 x Breda machine guns are placed in two turrets that have 360° coverage above and below the bomber, being able to defend it from most angles. It is able to defend itself pretty well against biplanes from reserve ranks, but can have tougher opponents like [[I-16 type 24]], [[Yak-2 KABB]], [[P-36G]], [[He 100 D-1]], [[Potez 631]], and [[J22-A]] that can make quick work of the S.81 as they are faster, more agile, and usually have more firepower than the S.81.
  
−
== Weaponry ==
+
S.81 is able to carry 28 x 50 kg bombs, 16 x 100 kg bombs, 4 x 250 kg bombs or 4 x 500 kg bombs. Bombloads like 28 x 50 kg and 16 x 100 kg are excellent for carpet bombing convoys and knocking out light targets, meanwhile heavier bombloads like 4 x 250 kg and 4 x 500 kg are excellent for destroying bombing points and damaging airfields. They are all useful in ground battles.
−
=== Offensive weaponry ===
 
−
''Describe the offensive weaponry of the aircraft, if any. Describe how effective the cannons and machine guns are in a battle, and also what belts or drums are better to use. If there is no offensive weaponry, delete this subsection.''
 
  
−
=== Suspended weaponry ===
+
Best use of S.81 in Air Battles is on clean up duty after other bombers that are way faster and might not have the bombload to take out bombing points in one go, or S.81 can go for stationary targets like pillboxes, light pillboxes, AA emplacements and artillery positions to bleed the enemy team's tickets.
−
''Describe the aircraft's suspended weapons: additional cannons under the wings, bombs, rockets and torpedoes. This section is especially important for bombers and attackers. If there is no suspended weaponry remove this subsection.''
 
  
−
=== Defensive weaponry ===
+
In ground battles the S.81 can be good air support for allied ground units, protecting points that are being captured by hostile forces and with good communications with the ground teammates it can wipe out entrenched enemies that are likely to be protecting points or certain roads or areas of the map. But beware of enemy SPAA units, the S.81's slow speed makes it an easy target for most SPAA vehicles at its battle rating.
−
''Defensive weaponry with turret machine guns or cannons, crewed by gunners. Examine the number of gunners and what belts or drums are better to use. If defensive weaponry is not available remove this subsection.''
 
  
−
== Usage in the battles ==
+
=== Manual Engine Control ===
−
''Describe the tactics of playing in an aircraft, the features of using vehicles in a team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but give the reader food for thought. Examine the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).''
+
{| class="wikitable" style="text-align:center"
 +
|-
 +
! colspan="7" | MEC elements
 +
|-
 +
! rowspan="2" | Mixer
 +
! rowspan="2" | Pitch
 +
! colspan="3" | Radiator
 +
! rowspan="2" | Supercharger
 +
! rowspan="2" | Turbocharger
 +
|-
 +
! Oil !! Water !! Type
 +
|-
 +
| Controllable || Not controllable<br>Not auto controlled || Not controllable<br>Not auto controlled || Not controllable<br>Not auto controlled || Separate || Not controllable<br>1 gear || Not controllable
 +
|-
 +
|}
  
 
=== Pros and cons ===
 
=== Pros and cons ===
−
''Summarize and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Do not use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - they have a substitution in the form of softer "inadequate", "effective".''
+
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' -->
  
 
'''Pros:'''
 
'''Pros:'''
−
*
+
 
 +
* Great payload, can carry up to 2,000 kg of ordnance which can destroy 3 bases with ease
 +
* Machine gun turrets can reach all sides of the bomber
 +
* Potent, fast-firing defensive armament for its tier, with incendiary bullets that can easily set fabric-covered low-tier planes on fire.
  
 
'''Cons:'''
 
'''Cons:'''
−
*
 
  
−
== Historical part ==
+
* Slow and sluggish
−
''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: https://wiki.warthunder.com/index.php?title=Name-vehicles/historical 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.''
+
* No armour or bulletproof glass for protection
 +
* Loss of a single engine will hamper the plane's ability to stay in the air
 +
* Low maximum altitude
 +
 
 +
== History ==
 +
<!-- ''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 long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' -->
 +
Under the need to have an aircraft capable reaching the far reaches of the Italian colonies in Africa, a project was made to develop an aircraft able to suit the Regia Aeronautica. Approaching manufacturer Savoia-Marchetti, chief designer Alessandro Marchetti developed the aircraft based on the Savoia's SM.73 airliner and militarized the vehicle for its intended use.<ref name="MFS.81">Military Factory. "Savoia-Marchetti SM.81 Pipistrello (Bat) Medium Bomber / Transport Aircraft." Military Factory, 31 May 2017, [http://www.militaryfactory.com/aircraft/detail.asp?aircraft_id=811 Website].</ref> The first prototype was built and flown in early 1935, approximately six months after the SM.73 debuted.<ref name="CenturyS.81">Century of Flight. "Savoia Marchetti S.M.81 Pipistrello." Italian Aircraft of World War Two, 11 Nov 2007, [https://web.archive.org/web/20121102170519/https://www.century-of-flight.net/Aviation%20history/photo_albums/timeline/ww2/Savoia%20Marchetti.htm Web Archive].</ref> This aircraft was then known as the '''SM.81''' "Pipistrello" ("Bat"). The aircraft was accepted for service in the same year with mass-production slated, with different engines used throughout the production life. 534 SM.81 would be produced in the time span between 1935 to 1944.<ref name="MurphyS.81">Murphy, Justin D., and Matthew A. McNiece. Military Aircraft, 1919-1945: an Illustrated History of Their Impact. ABC-CLIO, 2009.</ref>
 +
 
 +
===Combat usage===
 +
At its inception, the SM.81 was considered one of the better medium bombers of the era with its top speed of 211 miles, long range of 1,336 miles, well armed with six machine gun positions and able to carry a payload of up to 2,205 lbs.<ref name="MurphyS.81" /> The SM.81 found a versatile use on the battlefield, being used in a transport, bombing, ground attack, and a reconnaissance role, ensuring its relevancy even later in the war. One was procured by Benito Mussolini to be used as his private aircraft, the aircraft being nicknamed "Taratuga" ("Turtle") for its sluggish speed.
 +
 
 +
The SM.81 was first used in the Second Italo-Ethiopian War (also known as the Second Italo-Abyssinian War), lasting from 03 October 1935 to May 1936, quickly putting the SM.81 into action. Their versatile performed well in their support of the Italian troops, culminating with the annexation of Ethiopia into Italy's East African colonies. The SM.81 saw use again in the Spanish Civil War to aid the Spanish Nationalists in the Aviazione Legionaria, where they were used to the same degree as in Ethiopia. Though 12 were sent on a 705-mile flight on 29 July 1936 to Spanish-controlled Morocco, complexity in the flight had only nine arrive. These nine bombers provided a great asset in the Strait of Gibraltar as more aircraft arrived, keeping the Spanish Republican's Navy at bay. As the Nationalists push closer to Madrid, the SM.81, working alongside the German Condor Legion, bombed the Spanish capital almost daily. Though the SM.81 sometimes flew with escorting [[CR.32_(Family)|C.R.32]] biplanes, flying unescorted with tight formations was also possible due to the mutual machine gun protection with each other.<ref name="SmithS.81">Smith, Richard K., and R. Cargill. Hall. Five down, No Glory: Frank G. Tinker, Mercenary Ace in the Spanish Civil War. Naval Institute Press, 2011.</ref> However, when Soviet [[I-15_M-22|I-15]] and [[I-16 type 5|I-16]] appeared, flights started to be conducted at night to avoid losing precious bombers. When Italy left Spain at the conclusion of the war, around 64 SM.81 was left behind for the Spanish Air Force.
 +
 
 +
By the outbreak of World War II, the SM.81 was showing its age, though 300 units still remained in the Regia Aeronautica's inventory.<ref name="MFS.81" /> With the faster and more powerful [[S.M.79_(Family)|SM.79]] beginning to see service in 1936, the SM.81's roles was supplemented. The SM.81 still saw service in secondary roles and so deliveries still continued. It was used in the African theater as the main bomber against British forces in East Africa, but British [[Gladiator_Mk_II|Gladiators]] and [[Hurricane_(Family)|Hurricanes]] posed a major threat. Due to this the SM.81 was relegated as a night bomber in North Africa, with the darkness as cover against the enemy fighters. 80 SM.81 were also produced into a dedicated transport aircraft, known as ''SM.81T'', which proved vital in transporting troops and material to Rommel's Afrika Korps.<ref name="MurphyS.81" />
 +
 
 +
Even after Italy's surrender to Allied forces in September 1943, the SM.81 still saw service in North Italy's Aeronautica Nazionale Repubblicana and South Italy's Aviazione Cobelligerante Italiana. Though South Italy soon removed them from service, North Italy used them until the end of the war.<ref name="MFS.81" /> In the conclusion of World War II, several SM.81 were still in service with the post-war Aeronautica Militare Italiana, sticking around until 1950 when they were all officially retired.
 +
 
 +
===Other developments===
 +
Two main variants of the SM.81 existed, the SM.81 as a bomber/transport variant and the SM.81T as a dedicated transport aircraft, both using various engines as propulsion. A project was done known as the ''SM.81B'', which used a two-engine configuration. This provided inadequate performance compared to the three-engine configurations and so the project was discontinued.
 +
 
 +
Though the SM.81 saw use in the various Italian air forces and in Spain, three were also sent to the Chinese Nationalist forces, arriving at an unknown date. However, all three samples were destroyed in training exercises in early 1938.<ref name="MFS.81" />
  
 
== Media ==
 
== Media ==
−
''An excellent addition to the article will be video guides, as well as screenshots from the game and photos.''
+
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
 +
 
 +
;Skins
 +
 
 +
* [https://live.warthunder.com/feed/camouflages/?vehicle=s_81_ar125 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
 +
 
 +
;Videos
 +
{{Youtube-gallery|9_txEPailKc|'''The Shooting Range #92''' - ''Pages of History'' section at 06:20 discusses the S.81.}}
  
−
== Read also ==
+
== See also ==
−
''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example,''
+
<!-- ''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;''
 
* ''reference to the series of the aircraft;''
−
* ''links to approximate analogues of other nations and research trees.''
+
* ''links to approximate analogues of other nations and research trees.'' -->
−
''ETC.''
+
 
 +
;Aircraft of similar configuration and role
 +
* [[S.M.79 (Family)]]
 +
* [[Z.1007 (Family)]]
  
−
== Sources ==
+
== External links ==
−
''Paste links to sources and external resources, such as:''
+
<!-- ''Paste links to sources and external resources, such as:''
 
* ''topic on the official game forum;''
 
* ''topic on the official game forum;''
−
* ''page on the Wikipedia;''
+
* ''other literature.'' -->
−
* ''page on aircraft encyclopedia;''
+
 
−
* ''other literature.''
+
* [https://forum.warthunder.com/index.php?/topic/379608-s81/ Official data sheet - more details about the performance]
 +
 
 +
=== References ===
 +
<references />
 +
 
 +
{{AirManufacturer SM}}
 +
{{Italy bombers}}

Latest revision as of 17:48, 5 July 2024

Rank VI | Premium | Golden Eagles
Chinese A-5C Pack
S.81
s_81_ar125.png
GarageImage S.81.jpg
ArtImage S.81.png
S.81
Italy flag.png Italy
I Rank
Battle rating:
AB RB SB
1.3 1.3 1.3
Class:
Research:2 900 Specs-Card-Exp.png
Purchase:700 Specs-Card-Lion.png
Show in game

Description

The S.81 was introduced in a time when Italy needed an aircraft capable of covering the large distances of the African Campaign, providing reconnaissance and the ability to carry bombs. Chief designer of the new project, Alessandro Marchetti developed the aircraft based on the Savoia's SM.73 airliner and militarized the vehicle for its intended use. The first prototype flew in 1935 and the aircraft was designated SM.81 Pipistrello ("Bat"). The aircraft served until 1944 with a total of 534 units built. For its time, the aircraft was considered one of the best medium bombers, but when World War II broke out it was already an outdated design. It served with Italian forces in Spain and Africa, and three were also sent to the Chinese Nationalist Forces but they were lost in training exercises in early 1938.

It was introduced in Update 1.71 "New E.R.A.". The S.81 is distinctive with its three engines, two on the wings and one in the nose. Each engine is less powerful than contemporaries on other aircraft so each engine loss will heavily impact the aircraft's speed, causing it to lose altitude, although the nose engine increases survivability. Three types of turrets are available on the S.81, a dorsal turret on top, a ventral turret on the bottom, and two beam turrets for both sides of the fuselage. All the turrets provide an excellent arc of fires on their sectors, with mutual machine gun fire from more than one turret able to be met in most areas, however these turrets only use 7.7 mm machine guns. The S.81 lacks any sort of armour and the crew is very likely to be injured in attacks, especially from below.

General info

Flight performance

Max speed
at 4 000 m335 km/h
Turn time29 s
Max altitude6 800 m
Engine3 х Alfa Romeo 125 R.C.35
TypeRadial
Cooling systemAir
Take-off weight11 t
Characteristics Max Speed
(km/h at 4,000 m) 		Max altitude
(metres) 		Turn time
(seconds) 		Rate of climb
(metres/second) 		Take-off run
(metres)
AB RB AB RB AB RB
Stock 321 310 6800 30.1 31.3 3.9 3.9 450
Upgraded 351 335 28.0 29.0 9.4 6.3

Details

Features
Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear
✓ ✓ ✓ X X
Limits
Wings (km/h) Gear (km/h) Flaps (km/h) Max Static G
Combat Take-off Landing + -
530 530 369 348 241 ~4 ~2
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 260 < 270 < 270 > 330

Survivability and armour

Crew5 people
Speed of destruction
Structural530 km/h
Gear530 km/h
  • No armour plating
  • No armour glazing
  • Critical components located at front of aircraft (fuel, pilot, engine, controls)
  • More fuel tanks located in wings near fuselage

Modifications and economy

Repair costBasic → Reference
AB109 → 147 Sl icon.png
RB147 → 198 Sl icon.png
SB175 → 236 Sl icon.png
Total cost of modifications2 975 Rp icon.png
895 Sl icon.png
Talisman cost190 Ge icon.png
Crew training200 Sl icon.png
Experts1 000 Sl icon.png
Aces20 Ge icon.png
Research Aces96 000 Rp icon.png
Reward for battleAB / RB / SB
20 / 30 / 50 % Sl icon.png
100 / 100 / 100 % Rp icon.png
Modifications
Flight performance Survivability Weaponry
Mods aerodinamic fuse.png
Fuselage repair
Research:
150 Rp icon.png
Cost:
45 Sl icon.png
45 Ge icon.png
Mods radiator.png
Radiator
Research:
150 Rp icon.png
Cost:
45 Sl icon.png
45 Ge icon.png
Mods armor frame.png
Airframe
Research:
220 Rp icon.png
Cost:
65 Sl icon.png
70 Ge icon.png
Mods compressor.png
Compressor
Research:
220 Rp icon.png
Cost:
65 Sl icon.png
70 Ge icon.png
Mods aerodinamic wing.png
Wings repair
Research:
185 Rp icon.png
Cost:
55 Sl icon.png
55 Ge icon.png
Mods new engine.png
Engine
Research:
185 Rp icon.png
Cost:
55 Sl icon.png
55 Ge icon.png
Mods armor cover.png
Cover
Research:
195 Rp icon.png
Cost:
60 Sl icon.png
60 Ge icon.png
Mods metanol.png
Engine injection
Research:
195 Rp icon.png
Cost:
60 Sl icon.png
60 Ge icon.png
Mods engine extinguisher.png
EFS
Research:
195 Rp icon.png
Cost:
60 Sl icon.png
60 Ge icon.png
Mods ammo.png
breda_turret_belt_pack
Research:
150 Rp icon.png
Cost:
45 Sl icon.png
45 Ge icon.png
Mod arrow 0.png
Mods pilon bomb.png
GP100
Research:
150 Rp icon.png
Cost:
45 Sl icon.png
45 Ge icon.png
Mod arrow 1.png
Mods turret gun.png
safat7_turret_new_gun
Research:
220 Rp icon.png
Cost:
65 Sl icon.png
70 Ge icon.png
Mods ammo.png
bmg303_turret_belt_pack
Research:
185 Rp icon.png
Cost:
55 Sl icon.png
55 Ge icon.png
Mod arrow 0.png
Mods pilon bomb.png
GP250
Research:
185 Rp icon.png
Cost:
55 Sl icon.png
55 Ge icon.png
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lewis_turret_new_gun
Research:
195 Rp icon.png
Cost:
60 Sl icon.png
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GP500
Research:
195 Rp icon.png
Cost:
60 Sl icon.png
60 Ge icon.png

When grinding this plane for improvements and modules, focus on the payload first, then the plane performance. Ignore the defensive firepower upgrades as the defensive firepower upgraded is still extremely weak until its the last upgrades you have to get.

Armaments

Suspended armament

List of setups (4)
Setup 128 x 50 kg GP 50 bomb
Setup 216 x 100 kg GP 100T bomb
Setup 34 x 250 kg GP 250 bomb
Setup 44 x 500 kg GP 500 bomb
Main articles: GP 50 (50 kg), GP 100 (100 kg), GP 250 (250 kg), GP 500 (500 kg)

The S.81 can be outfitted with the following ordnance:

  • 28 x 50 kg GP 50 bombs (1,400 kg total)
  • 16 x 100 kg GP 100 bombs (1,600 kg total)
  • 4 x 250 kg GP 250 bombs (1,000 kg total)
  • 4 x 500 kg GP 500 bombs (2,000 kg total)

Defensive armament

2 х Turret2 x 7.7 mm Breda-SAFAT machine gun
Ammunition1000 rounds
Fire rate900 shots/min
2 х Turret7.7 mm Lewis machine gun
Ammunition500 rounds
Fire rate551 shots/min
Main articles: Breda-SAFAT (7.7 mm), Lewis (7.7 mm)

The S.81 is defended by:

  • 2 x 7.7 mm Breda-SAFAT machine guns, dorsal turret (500 rpg = 1,000 total)
  • 2 x 7.7 mm Breda-SAFAT machine guns, ventral turret (500 rpg = 1,000 total)
  • 1 x 7.7 mm Lewis machine gun, 2 x beam turrets (500 rpg)

Usage in battles

S.81 is a well armed beginner bomber for Italy, being able to carry a heavy load of bombs in different sizes. Though it doesn't possess the greatest speed, it's still a bomber for the enemy team to recognize as a threat for its carrying capacity of bombs. Being mixed up with bombers from other nations like He 111 H-3, F.222.2, or TB-3M-17-32, they can easily wipe out enemy bases and airfield.

S.81 is armed with 6 x 7.7 mm machine guns: 2 x Lewis (7.7 mm) and 4 x Breda-SAFAT (7.7 mm) which is pretty well armed for a low tier bomber. The two Lewis machine guns are placed at the middle rear of the plane in the sides, where they can cover if enemy planes are flying level next to the S.81. Meanwhile, the 4 x Breda machine guns are placed in two turrets that have 360° coverage above and below the bomber, being able to defend it from most angles. It is able to defend itself pretty well against biplanes from reserve ranks, but can have tougher opponents like I-16 type 24, Yak-2 KABB, P-36G, He 100 D-1, Potez 631, and J22-A that can make quick work of the S.81 as they are faster, more agile, and usually have more firepower than the S.81.

S.81 is able to carry 28 x 50 kg bombs, 16 x 100 kg bombs, 4 x 250 kg bombs or 4 x 500 kg bombs. Bombloads like 28 x 50 kg and 16 x 100 kg are excellent for carpet bombing convoys and knocking out light targets, meanwhile heavier bombloads like 4 x 250 kg and 4 x 500 kg are excellent for destroying bombing points and damaging airfields. They are all useful in ground battles.

Best use of S.81 in Air Battles is on clean up duty after other bombers that are way faster and might not have the bombload to take out bombing points in one go, or S.81 can go for stationary targets like pillboxes, light pillboxes, AA emplacements and artillery positions to bleed the enemy team's tickets.

In ground battles the S.81 can be good air support for allied ground units, protecting points that are being captured by hostile forces and with good communications with the ground teammates it can wipe out entrenched enemies that are likely to be protecting points or certain roads or areas of the map. But beware of enemy SPAA units, the S.81's slow speed makes it an easy target for most SPAA vehicles at its battle rating.

Manual Engine Control

MEC elements
Mixer Pitch Radiator Supercharger Turbocharger
Oil Water Type
Controllable Not controllable
Not auto controlled 		Not controllable
Not auto controlled 		Not controllable
Not auto controlled 		Separate Not controllable
1 gear 		Not controllable

Pros and cons

Pros:

  • Great payload, can carry up to 2,000 kg of ordnance which can destroy 3 bases with ease
  • Machine gun turrets can reach all sides of the bomber
  • Potent, fast-firing defensive armament for its tier, with incendiary bullets that can easily set fabric-covered low-tier planes on fire.

Cons:

  • Slow and sluggish
  • No armour or bulletproof glass for protection
  • Loss of a single engine will hamper the plane's ability to stay in the air
  • Low maximum altitude

History

Under the need to have an aircraft capable reaching the far reaches of the Italian colonies in Africa, a project was made to develop an aircraft able to suit the Regia Aeronautica. Approaching manufacturer Savoia-Marchetti, chief designer Alessandro Marchetti developed the aircraft based on the Savoia's SM.73 airliner and militarized the vehicle for its intended use.[1] The first prototype was built and flown in early 1935, approximately six months after the SM.73 debuted.[2] This aircraft was then known as the SM.81 "Pipistrello" ("Bat"). The aircraft was accepted for service in the same year with mass-production slated, with different engines used throughout the production life. 534 SM.81 would be produced in the time span between 1935 to 1944.[3]

Combat usage

At its inception, the SM.81 was considered one of the better medium bombers of the era with its top speed of 211 miles, long range of 1,336 miles, well armed with six machine gun positions and able to carry a payload of up to 2,205 lbs.[3] The SM.81 found a versatile use on the battlefield, being used in a transport, bombing, ground attack, and a reconnaissance role, ensuring its relevancy even later in the war. One was procured by Benito Mussolini to be used as his private aircraft, the aircraft being nicknamed "Taratuga" ("Turtle") for its sluggish speed.

The SM.81 was first used in the Second Italo-Ethiopian War (also known as the Second Italo-Abyssinian War), lasting from 03 October 1935 to May 1936, quickly putting the SM.81 into action. Their versatile performed well in their support of the Italian troops, culminating with the annexation of Ethiopia into Italy's East African colonies. The SM.81 saw use again in the Spanish Civil War to aid the Spanish Nationalists in the Aviazione Legionaria, where they were used to the same degree as in Ethiopia. Though 12 were sent on a 705-mile flight on 29 July 1936 to Spanish-controlled Morocco, complexity in the flight had only nine arrive. These nine bombers provided a great asset in the Strait of Gibraltar as more aircraft arrived, keeping the Spanish Republican's Navy at bay. As the Nationalists push closer to Madrid, the SM.81, working alongside the German Condor Legion, bombed the Spanish capital almost daily. Though the SM.81 sometimes flew with escorting C.R.32 biplanes, flying unescorted with tight formations was also possible due to the mutual machine gun protection with each other.[4] However, when Soviet I-15 and I-16 appeared, flights started to be conducted at night to avoid losing precious bombers. When Italy left Spain at the conclusion of the war, around 64 SM.81 was left behind for the Spanish Air Force.

By the outbreak of World War II, the SM.81 was showing its age, though 300 units still remained in the Regia Aeronautica's inventory.[1] With the faster and more powerful SM.79 beginning to see service in 1936, the SM.81's roles was supplemented. The SM.81 still saw service in secondary roles and so deliveries still continued. It was used in the African theater as the main bomber against British forces in East Africa, but British Gladiators and Hurricanes posed a major threat. Due to this the SM.81 was relegated as a night bomber in North Africa, with the darkness as cover against the enemy fighters. 80 SM.81 were also produced into a dedicated transport aircraft, known as SM.81T, which proved vital in transporting troops and material to Rommel's Afrika Korps.[3]

Even after Italy's surrender to Allied forces in September 1943, the SM.81 still saw service in North Italy's Aeronautica Nazionale Repubblicana and South Italy's Aviazione Cobelligerante Italiana. Though South Italy soon removed them from service, North Italy used them until the end of the war.[1] In the conclusion of World War II, several SM.81 were still in service with the post-war Aeronautica Militare Italiana, sticking around until 1950 when they were all officially retired.

Other developments

Two main variants of the SM.81 existed, the SM.81 as a bomber/transport variant and the SM.81T as a dedicated transport aircraft, both using various engines as propulsion. A project was done known as the SM.81B, which used a two-engine configuration. This provided inadequate performance compared to the three-engine configurations and so the project was discontinued.

Though the SM.81 saw use in the various Italian air forces and in Spain, three were also sent to the Chinese Nationalist forces, arriving at an unknown date. However, all three samples were destroyed in training exercises in early 1938.[1]

Media

Skins
Videos
The Shooting Range #92 - Pages of History section at 06:20 discusses the S.81.

See also

Aircraft of similar configuration and role

External links

References

  1. ↑ 1.0 1.1 1.2 1.3 Military Factory. "Savoia-Marchetti SM.81 Pipistrello (Bat) Medium Bomber / Transport Aircraft." Military Factory, 31 May 2017, Website.
  2. ↑ Century of Flight. "Savoia Marchetti S.M.81 Pipistrello." Italian Aircraft of World War Two, 11 Nov 2007, Web Archive.
  3. ↑ 3.0 3.1 3.2 Murphy, Justin D., and Matthew A. McNiece. Military Aircraft, 1919-1945: an Illustrated History of Their Impact. ABC-CLIO, 2009.
  4. ↑ Smith, Richard K., and R. Cargill. Hall. Five down, No Glory: Frank G. Tinker, Mercenary Ace in the Spanish Civil War. Naval Institute Press, 2011.


Savoia-Marchetti
Bombers  S.M.79 serie 1 · S.M.79 serie 8 · S.M.79 AS · S.M.79 bis/T.M
  S.81
Attackers  SM.91 · SM.92
Export  S.M.79 B
Captured  ▀S.M.79 serie 1 · ▀S.M.79 serie 4 · ▀S.M.79 serie 8
  ▀S.M.79 AS · ▀S.M.79 bis/N · ▀S.M.79 bis/T.M · ▀S.M.79 B

Italy bombers
Fiat  B.R.20DR · B.R.20M M1
Savoia-Marchetti  S.81 · S.M.79 serie 1 · S.M.79 B · S.M.79 serie 8 · S.M.79 AS · S.M.79 bis/T.M
CANT  Z.1007 bis serie 3 · Z.1007 bis serie 5
Piaggio  P.108B serie 1 · P.108B serie 2
  Foreign:
Germany  ▄Ju 87 R-2 · ▄Ju 87 D-3
Hungary  ◔Tu-2S-59

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