Yer-2 (M-105)

Yer-2 (M-105)

Pe-2-83

Yer-2 (M-105R) LU

Yer-2 (M-105)

Pe-2-83

Yer-2 (M-105R) LU

USSR

III Rank

Battle rating:

AB	RB	SB
3.7	3.3	4.0

Class:

Bomber

Long Range bomber

Research:18 000

Purchase:47 000

Show in game

This page is about the Russian bomber Yer-2 (M-105). For other uses, see Yer-2 (Family).

Description

The Yer-2 (M-105) is a rank III Russian bomber with a battle rating of 3.7 (AB), 3.3 (RB), and 4.0 (SB). This aircraft has been in the game since the start of the Open Beta Test, prior to Update 1.27.

General info

Flight Performance

Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.

Characteristics
Stock
Max Speed (km/h at ?,000 m)		Max altitude (meters)	Turn time (seconds)		Rate of climb (meters/second)		Take-off run (meters)
AB	RB		AB	RB	AB	RB
?	?	7200	??.?	??.?	??.?	??.?	???
Upgraded
Max Speed (km/h at ?,000 m)		Max altitude (meters)	Turn time (seconds)		Rate of climb (meters/second)		Take-off run (meters)
AB	RB		AB	RB	AB	RB
?	?	7200	??.?	??.?	??.?	??.?	???

Details

Features
Combat flap	Take-off flap	Landing flap	Air brakes	Arrestor gear
X	X	X	X	X

Limits
Wing-break speed (km/h)	Gear limit (km/h)	Combat flap (km/h)	Max Static G
			+	-
		???	~??	~?

Optimal velocities
Ailerons (km/h)	Rudder (km/h)	Elevators (km/h)	Radiator (km/h)
< ???	< ???	< ???	> ???

Compressor (RB/SB)
Setting 1
Optimal altitude	100% Engine power	WEP Engine power
?,??? m	??? hp	?,??? hp

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, etc. Describe the armour, if there is any, and also mention the vulnerability of other critical aircraft systems.

Armaments

Suspended armament

The Yer-2 (M-105) can be outfitted with the following ordnance:

• 12 x 50 kg FAB-50 (600 kg total)
• 12 x 100 kg FAB-100 (1,200 kg total)
• 14 x 100 kg FAB-100 (1,400 kg total)
• 4 x 250 kg FAB-250M43 (1,000 kg total)
• 6 x 250 kg FAB-250M43 (1,500 kg total)
• 4 x 500 kg FAB-500 (2,000 kg total)
• 6 x 500 kg FAB-500 (3,000 kg total)
• 2 x 1,000 kg FAB-1000 (2,000 kg total)
• 2 x 1,000 kg FAB-1000 + 4 x 500 kg FAB-500 (4,000 kg total)

Defensive armament

The Yer-2 (M-105) is defended by:

• 1 x 7.62 mm ShKAS machine gun, nose turret (500 rpg)
• 1 x 7.62 mm ShKAS machine gun, dorsal turret (1,200 rpg)
• 1 x 7.62 mm ShKAS machine gun, ventral turret (1,075 rpg)

Usage in battles

The Yer-2 (M-105) is an impressive aircraft for it's time, considering the bomb-load makes up of 56% of its weight an it was able to, well, still fly! (although there was a crash of the prototype, which was designated Stal-7, during takeoff. This led to the arrest of the original designer before Yermolayev undertook the design.) In Arcade battles, the weight of the aircraft would't affect the gameplay too much. However, that's a different story for players who play this aircraft in Air RB. The weight of the bomb-load significantly affects the performance of the aircraft, making it a pain to fly to its destination because it has a subpar climb rate, and its painfully slow (stock: average of ~263km/h at 5,000 m). Luckily, this is a long range bomber, and this allows you to spawn at an altitude of 4,000 m. The player should not start diving immediately because the slow speed and the lack of defensive armaments on the aircraft makes this aircraft an easy target for enemy fighters, especially for those with 8 x .50 cal machine guns. As a long range bomber, your best ally would be altitude. The higher you are, the more chance you have at surviving (Enemy aircrafts would usually leave you alone when you're at 5,000 m). Avoid flying into the middle of the battlefield to prevent dropping your K/D ratio. Try taking routes around the map and far from the battle because it won't be long before 4 fighters aircrafts start appearing at your rear. If an enemy does appear at your six, drop your bomb-load immediately at the target and return to base. If you weren't able to do so, return to the base whatsoever. Start diving to the direction of the airbase, this will increase the effectiveness of putting out a fire, and pray that you're able to take him done before the enemy does that to you.

Manual Engine Control

MEC elements
Mixer	Pitch	Radiator			Supercharger	Turbocharger
		Oil	Water	Type
???	???	???	???	???	???	???

Modules

Tier	Flight performance		Survivability	Weaponry
I	Fuselage repair	Radiator		Der-19-20
II		Compressor	Airframe	KD-3-240
III	Wings repair	Engine		Turret 7 mm
IV		Engine injection	Cover	New 7 mm MGs (turret)

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. 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:

Cons:

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 big, take it to a separate article, taking a link to the article about the vehicle and adding a block "/ History" (example: https://wiki.warthunder.com/(Vehicle-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref>, as well as adding them at the end of the article. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under === Encyclopedia Info ===, also if applicable).

In-game description

"Yermolayev DB-240 (Yer-2) twin-engine long-range bomber

A four-seat, all-metal monoplane with an inverted gull wing, a twin-fin tail, and a retractable landing gear system including a tail wheel. This plane was designed by OKB-240, under the direction of V. G. Yermolayev. The DB-240 was based on the Stal-7 passenger aircraft designed at the Civil Air Fleet Research Institute under the direction of R. L. Bartini.

The DB-240 prototype got off the ground for the first time on May 14, 1940. Full-scale production of the aircraft, under the designation of Yer-2, was started in May 1941 at Voronezh Aircraft Factory No. 18.

Originally, the DB-240 was designed with the promising M-106 liquid-cooled engines in mind. However, the development of the M-106 took longer than expected, and the designers urgently had to revise the whole project since the M-105 engines were less powerful and designed for lower altitudes but had already been launched into full-scale production. This forced replacement of the power unit significantly reduced the DB-240's combat capabilities, since its speed and altitude were noticeably decreased.

Yer-2s of the first production series were equipped with 1,100 hp Klimov M-105 twelve-cylinder, V-shaped, liquid-cooled engines with three-bladed variable-pitch metal VISh-22Ye propellers.

The aircraft's defensive armament included three turrets. One 7.62 mm ShKAS belt-fed machine gun with 500 rounds was hinged in the navigator's nose mount just like it had been on the DB-3F. A Mozharovsky-Venevidov LU-MV-2 hatch mount was fitted in the lower rear hatch between the 18th and the 21st frames. The mount was retracted in the fuselage when in the travelling position or extended before firing. A 7.62 mm ShKAS machine gun with an OP-2L optical sight and 1,075 rounds was mounted on a mobile carriage. The first production aircraft had Mozharovsky-Venevidov MV-3 turrets, with a 7.62 mm ShKAS machine gun featuring an OPT-1 sight and 1,200 rounds. Then, heavy TAT-VT turrets started to be delivered, and the light MV-3 turret was replaced with a heavy TAT-VT aerodynamic turret featuring a 12.7 mm Berezin BT machine gun with 400 rounds.

The aircraft's bombing armament included two external Der-19-20 beams enabling it to suspend bombs weighing from 100 to 1,000 kg (FAB-100, FAB-250, FAB-500, FAB-1000, BRAB-220, BRAB-500, BRAB-1000, P-250). The fuselage bomb bay had inside a pair of KDZ-240 twin cluster bomb racks designed to suspend four FAB-250 or FAB-500 bombs, as well as four KD2-240 triple cluster bomb racks designed to suspend 12 FAB-50 or FAB-100 bombs. External suspension enabled the aircraft to carry two VAP-500 spray tanks or the same number of UKhAP-500 all-purpose chemical tanks to create smoke screens. Four ABK-240 bomb clusters could be suspended inside the bomb bay, with bomblets up to 15 kg or incendiary ampoules. The Yer-2's maximum bomb capacity for short distances was 4,000 kg (two FAB-1000s on the outside and four FAB-500s suspended inside)."

Media

I recommend watching this YouTube video: https://youtu.be/g0yMMxi_31U

See 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.

External links

Paste links to sources and external resources, such as:

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