Difference between revisions of "Martin 139WC"

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{{About
 
{{About
−
| about = Chinese bmober '''{{PAGENAME}}'''
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| about = Chinese Bomber '''{{PAGENAME}}'''
−
| usage = other version
+
| usage = other versions
−
| link = B-10B
+
| link = Martin 139 (Family)
 
}}
 
}}
 
{{Specs-Card
 
{{Specs-Card
 
|code=martin_139wc
 
|code=martin_139wc
−
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
+
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg|ArtImage_{{PAGENAME}}.png}}
 
}}
 
}}
  
 
== Description ==
 
== Description ==
 
<!-- ''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.'' -->
 
<!-- ''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}}''' is a rank {{Specs|rank}} Chinese bomber {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]].
+
The '''{{Specs|name}}''', often referred as the 馬丁式轟炸機 (Martin Bomber), was the export version of Martin B-10 bomber for the NRAAF in 1936. As part of the 50th birthday cerebration of Chiang Kai-Shek's fundraising campaign, some of the funds raised were taken as the fund to purchase nine Martin 139W bombers to strengthen the NRAAF; these aircrafts were in service alongside with some He 111A series and SM.72 during the early days of the total outbreak of Sino-Japanese War but with minimal efficiency. The most famous operation carried out by Martin 139WC was the propaganda leaflet "bombing" to Kyushu on 20th May, 1938 with the help of long-range radio and US instructors, 4 years before the Doolittle Raid on April 1942; as the bomber was already obsolete and new Soviet/US-built bombers arrived in China, the Martins were soon phrased out and left as training aids for bomber crews as late as 1945.
 +
 
 +
Introduced in [[Update 1.91 "Night Vision"]] with the Chinese tech tree, although having a rather peculiar aerodynamic design like a boat and less than desired self-defense firepower, Martin 139WC can still prove its worthiness with up to 600 kg bombs at its rank and deliver destruction to enemy stationary targets.  
  
 
== General info ==
 
== General info ==
 
=== Flight performance ===
 
=== Flight performance ===
 
{{Specs-Avia-Flight}}
 
{{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.''-->
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<!-- ''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.'' -->
  
 
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{| class="wikitable" style="text-align:center" width="70%"
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|-
 
| < 200 || < 270 || < 290 || > 307
 
| < 200 || < 270 || < 290 || > 307
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|-
 
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|}
 
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{| class="wikitable" style="text-align:center"
 
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|-
 
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! colspan="3" | Compressor (RB/SB)
 
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|-
 
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! colspan="3" | Setting 1
 
−
|-
 
−
! Optimal altitude
 
−
! 100% Engine power
 
−
! WEP Engine power
 
−
|-
 
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| 2,200 m || 740 hp || 844 hp
 
 
|-
 
|-
 
|}
 
|}
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{{Specs-Avia-Suspended}}
 
{{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.'' -->
 
<!-- ''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|SAP 100 (100 kg)|№.1 (100 kg)|№.1 (200 kg)|GP 250 (250 kg)}}
+
{{main|SAP 100M (100 kg)|No.1 (100 kg)|No.1 (200 kg)|GP 250 (250 kg)}}
  
 
The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance:
 
The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance:
  
−
* 6 x 100 kg SAP 100 bombs (600 kg total)
+
* 6 x 100 kg SAP 100M bombs (600 kg total)
−
* 6 x 100 kg №.1 bombs (600 kg total)
+
* 6 x 100 kg No.1 bombs (600 kg total)
−
* 2 x 200 kg №.1 bombs (400 kg total)
+
* 2 x 200 kg No.1 bombs (400 kg total)
 
* 2 x 250 kg GP 250 bombs (500 kg total)
 
* 2 x 250 kg GP 250 bombs (500 kg total)
  
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== History ==
 
== 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).''
+
<!-- ''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).'' -->
 +
Although the Martin B-10 was made obsolete in late 1930s when Boeing's [[B-17 (Family)|B-17]] won the bid for a new long-range bomber, the overall performance of the B-10 was still sufficient for countries in dire need for high-speed bombers, including the Republic of China which had next to no aviation industry at the time.
 +
 
 +
Records show that the ROCAF purchased the Martin B-10 (designated the Martin 139WC) in 1936; it was in fact the fastest aircraft on Chinese soil which was at the time mostly biplanes. They served as part of the ROCAF bomber forces and joined the first bombing operations of mainland Japan in 1938 when two bombers took off from Hankou (now a district of Wuhan City) and dropped propaganda leaflets over Kyushu via Ningbo (which was still under Nationalist control at the time) on 19th May 1938. The crew returned safely to Nanchang on the 20th, but any further records of the Martin 139 in the Chinese Theatre are sparse.
  
 
== Media ==
 
== Media ==
−
''Excellent additions to the article would be video guides, 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=martin_139wc Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
  
 
== See 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.'' -->
 +
 
 +
;Related development
 +
 
 +
* [[B-10B]]
  
 
;Aircraft of comparable role, configuration and era
 
;Aircraft of comparable role, configuration and era
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* ''topic on the official game forum;''
 
* ''topic on the official game forum;''
−
* ''encyclopedia page on the aircraft;''
 
 
* ''other literature.''
 
* ''other literature.''
  
 
{{AirManufacturer Martin}}
 
{{AirManufacturer Martin}}
 
{{China bombers}}
 
{{China bombers}}

Latest revision as of 17:10, 28 May 2024

Rank VI | Premium | Golden Eagles
Chinese A-5C Pack
This page is about the Chinese Bomber Martin 139WC. For other versions, see Martin 139 (Family).
Martin 139WC
martin_139wc.png
GarageImage Martin 139WC.jpg
ArtImage Martin 139WC.png
Martin 139WC
China flag.png China
I Rank
Battle rating:
AB RB SB
1.3 1.3 1.7
Class:
Research:2 900 Specs-Card-Exp.png
Purchase:700 Specs-Card-Lion.png
Show in game

Description

The Martin 139WC, often referred as the 馬丁式轟炸機 (Martin Bomber), was the export version of Martin B-10 bomber for the NRAAF in 1936. As part of the 50th birthday cerebration of Chiang Kai-Shek's fundraising campaign, some of the funds raised were taken as the fund to purchase nine Martin 139W bombers to strengthen the NRAAF; these aircrafts were in service alongside with some He 111A series and SM.72 during the early days of the total outbreak of Sino-Japanese War but with minimal efficiency. The most famous operation carried out by Martin 139WC was the propaganda leaflet "bombing" to Kyushu on 20th May, 1938 with the help of long-range radio and US instructors, 4 years before the Doolittle Raid on April 1942; as the bomber was already obsolete and new Soviet/US-built bombers arrived in China, the Martins were soon phrased out and left as training aids for bomber crews as late as 1945.

Introduced in Update 1.91 "Night Vision" with the Chinese tech tree, although having a rather peculiar aerodynamic design like a boat and less than desired self-defense firepower, Martin 139WC can still prove its worthiness with up to 600 kg bombs at its rank and deliver destruction to enemy stationary targets.

General info

Flight performance

Max speed
at 2 438 m370 km/h
Turn time21 s
Max altitude7 380 m
Engine2 х Wright Cyclone R-1820G2
TypeRadial
Cooling systemAir
Take-off weight7 t
Characteristics Max Speed
(km/h at 2,438 m) 		Max altitude
(metres) 		Turn time
(seconds) 		Rate of climb
(metres/second) 		Take-off run
(metres)
AB RB AB RB AB RB
Stock 353 340 7380 21.9 22.7 5.6 5.6 600
Upgraded 389 370 20.1 21.0 10.5 7.7

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 + -
564 235 328 313 235 ~7 ~3
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 200 < 270 < 290 > 307

Survivability and armour

Crew4 people
Speed of destruction
Structural564 km/h
Gear235 km/h

The Martin 139WC does not have any armour. There are 4 self-sealing fuel tanks, with 2 in each wing.

Modifications and economy

Repair costBasic → Reference
AB111 → 138 Sl icon.png
RB159 → 198 Sl icon.png
SB211 → 263 Sl icon.png
Total cost of modifications2 960 Rp icon.png
885 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
10 / 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
40 Ge icon.png
Mods radiator.png
Radiator
Research:
150 Rp icon.png
Cost:
45 Sl icon.png
40 Ge icon.png
Mods compressor.png
Compressor
Research:
220 Rp icon.png
Cost:
65 Sl icon.png
55 Ge icon.png
Mods aerodinamic wing.png
Wings repair
Research:
185 Rp icon.png
Cost:
55 Sl icon.png
45 Ge icon.png
Mods new engine.png
Engine
Research:
185 Rp icon.png
Cost:
55 Sl icon.png
45 Ge icon.png
Mods metanol.png
Engine injection
Research:
480 Rp icon.png
Cost:
145 Sl icon.png
120 Ge icon.png
Mods armor frame.png
Airframe
Research:
220 Rp icon.png
Cost:
65 Sl icon.png
55 Ge icon.png
Mods armor cover.png
Cover
Research:
480 Rp icon.png
Cost:
145 Sl icon.png
120 Ge icon.png
Mods ammo.png
bmg30_turret_belt_pack
Research:
150 Rp icon.png
Cost:
45 Sl icon.png
40 Ge icon.png
Mod arrow 1.png
Mods pilon bomb.png
100 GPs
Research:
150 Rp icon.png
Cost:
45 Sl icon.png
40 Ge icon.png
Mod arrow 0.png
Mods pilon bomb.png
200 GPs
Research:
220 Rp icon.png
Cost:
65 Sl icon.png
55 Ge icon.png
Mod arrow 0.png
Mods turret gun.png
bmg30_turret_new_gun
Research:
185 Rp icon.png
Cost:
55 Sl icon.png
45 Ge icon.png
Mods pilon bomb.png
GP250
Research:
185 Rp icon.png
Cost:
55 Sl icon.png
45 Ge icon.png

Armaments

Suspended armament

List of setups (4)
Setup 16 x 100 kg SAP 100M bomb
Setup 26 x 100 kg No.1
Setup 32 x 200 kg No.1
Setup 42 x 250 kg GP 250 bomb
Main articles: SAP 100M (100 kg), No.1 (100 kg), No.1 (200 kg), GP 250 (250 kg)

The Martin 139WC can be outfitted with the following ordnance:

  • 6 x 100 kg SAP 100M bombs (600 kg total)
  • 6 x 100 kg No.1 bombs (600 kg total)
  • 2 x 200 kg No.1 bombs (400 kg total)
  • 2 x 250 kg GP 250 bombs (500 kg total)

Defensive armament

3 х Turret7.62 mm Browning machine gun
Ammunition600 rounds
Fire rate1000 shots/min
Main article: Browning (7.62 mm)

The Martin 139WC is defended by:

  • 1 x 7.62 mm Browning machine gun, nose turret (600 rpg)
  • 1 x 7.62 mm Browning machine gun, dorsal turret (600 rpg)
  • 1 x 7.62 mm Browning machine gun, ventral turret (600 rpg)

Usage in battles

As a bomber, the Martin 139WC does the job well. It can easily reach bombing points before interception and can damage a base with two 250 kg bombs, and can then turn away and return to base to rearm. If enemy fighters are at altitude, consider using clouds for cover, or entering a shallow dive towards friendly fighters, or the airfield.

This aircraft works very well defensively and can be very effective when flown with a squadmate. As this bomber is very manoeuvrable, it can out-turn most enemy fighters, but lacks the firepower to deal with them effectively, it has no fixed guns and is only equipped with .30 calibre machine guns, and controlling them manually in a dogfight isn't really a viable option. But when playing with a friend, the Martin 139WC can engage a fighter, and while manoeuvring, can draw the enemy into a low energy state, making it a very easy target to take out.

On your own, you can still comfortably dogfight one-on-one with most German and Italian monoplane aircraft, but if this fight is away from friendlies, another enemy fighter could engage with you, and being such a large target, a 2-on-1 fight likely won't go in your favour. As you are a big target, and with two enemies around you, one is likely going to take out a critical component sooner or later.

Try diving towards friendlies before engaging in a dogfight, the closer you are to your allies, the more likely it is that they'll come to your aid, the further away you are, the more likely it is that an enemy will join the fight instead.

If there are no enemies around later on in the match you can attack light ground targets by manually controlling your nose gunner, just make sure to watch out for any trees or ground hazards as there will be a delay before you can switch back to direct control of the aircraft.

Manual Engine Control

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

Pros and cons

Pros:

  • Very manoeuvrable, has an impressively high turn rate for a bomber
  • The frontal gunner, while only having a .30 cal, can be used as a manual weapon if you keep the front of the plane on an enemies tail, or for attacking ground targets
  • As it's a less well-known aircraft, enemies may not know how to effectively fight it
  • It can easily take fire from machine guns on the wings, and in general is fairly survivable
  • While having limited fire arcs on the rear turrets, they cover a wide area and can surprise enemies that don't know they're there

Cons:

  • It's a large target, and even though the critical components are hard to hit individually, the large wings and tail will accumulate damage over time
  • Maximum bombload of 2 x 250 kg bombs is not a lot
  • No armour protection at all, leaving it vulnerable to even small-calibre MG.
  • Despite its comparatively good speed, most Axis aircraft can catch up to it easily
  • Rear gunners have a slightly restricted field of view over the tail, where the gunners can't fire

History

Although the Martin B-10 was made obsolete in late 1930s when Boeing's B-17 won the bid for a new long-range bomber, the overall performance of the B-10 was still sufficient for countries in dire need for high-speed bombers, including the Republic of China which had next to no aviation industry at the time.

Records show that the ROCAF purchased the Martin B-10 (designated the Martin 139WC) in 1936; it was in fact the fastest aircraft on Chinese soil which was at the time mostly biplanes. They served as part of the ROCAF bomber forces and joined the first bombing operations of mainland Japan in 1938 when two bombers took off from Hankou (now a district of Wuhan City) and dropped propaganda leaflets over Kyushu via Ningbo (which was still under Nationalist control at the time) on 19th May 1938. The crew returned safely to Nanchang on the 20th, but any further records of the Martin 139 in the Chinese Theatre are sparse.

Media

Skins

See also

Related development
Aircraft of comparable role, configuration and era

External links

Paste links to sources and external resources, such as:

  • topic on the official game forum;
  • other literature.


Glenn L. Martin Company
Attackers  AM-1
Bombers  B-10B · B-26B · PBM-1 · PBM-3 · PBM-5A
Jet bombers  B-57A* · B-57B*
Export  Martin 139WC · Martin 167-A3 · B-26C
  * These aircraft were license-built from The English Electric Company Limited who developed and built the British English Electric Canberra.

China bombers
American  Martin 139WC*(␗B-10B) · ␗A-29 · ␗B-25J-30 · ␗PB4Y-2
German  ␗Hs 123 A-1
Soviet  ␗SB 2M-103U · ␗DB-3A · ␗Tu-2S-44 · ␗Tu-4
Japanese  ␗P1Y1 mod. 11
  *Export Name

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