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The Yak-9
Military aviation
The Yak-9. Characteristics. A photo. Video. History.

The Yak-9. Characteristics. A photo. Video. History.

 

 

Yak-9 - aircraft developed by Yakovlev Design Bureau in 1942 year, adopted by the Air Force of the Red Army at the end of the same year. The aircraft is a single-seat fighter - monoplane with a liquid-cooled engine. The first operation in which the aircraft took part, was the Battle of Stalingrad, the importance of which history can not be overemphasized.

Yak-9 most massive Soviet fighter of World War II, was produced in the amount of about 17000 units of various modifications. The main reason for this was the high efficiency of the aircraft as a fighting unit, high aircraft performance data and simple design that will lead to the mass production in time of war as soon as possible. However, what is so special was the Yak-9?

The Yak-9 in flight

Let's start from the history. In the summer of 1941 years of Air Force first met in battle the German Luftwaffe, which is numerically inferior, superior to materiel, training and experience of the personnel of the Air Force of the Soviet Union.

It will be wrong to say that only defeat this determined the Air Force, because a large proportion of the air made the defeat of the ground rapidly advancing Wehrmacht. But, nevertheless, the fact that technological backwardness at the start of the war certainly played a role. Slowly coming into the part of the Yak-1, MiG and LaGG-3-3 - the most advanced fighters of the USSR at that time initially conceded German Bf-109F, it became clear after a short period of time. Almost immediately, attempts were made to eliminate the gap by amending the above-mentioned models of equipment.

The Yak-9 heroes

But it has not made the desired effect, and it soon became clear that we need a completely new fighter. Yakovlev Design Bureau in parallel with the operational development of the Yak and Yak-1-7 (developed on its own initiative on the basis of training aircraft) and engaged in designing new fighter will end up with the name of the Yak-9.

1942 appeared at the end of the year, the Yak-9 was designed based on the Yak and Yak-7-1, he absorbed the best features of both machines and the experience of almost one and a half years of war, and that led to its success. Besides slightly improved culture assembly machines, construction was facilitated by the use of duralumin and set the forced engine M-105PF, which greatly improved the performance characteristics of the aircraft. By the time the Yak-9, in service with the Luftwaffe became the main fighter Bf-109G, more powerful than its predecessor, the motor. However, even he was not provided an overwhelming technical advantage to its pilot to the pilot of the Yak-9, only slightly higher than the second speed at altitudes above 5000m and climb at all altitudes, but yielding to the horizontal bend. The main disadvantage of the Yak-9 pilots considered low power arms (one 20mm ShVAK gun and one machine gun UB 12.7mm). Firepower was reduced intentionally, to reduce the weight of aircraft and improve its characteristics, for the same reason, the plane had enough fuel a small margin - just 320kg, which somewhat limits the scope of its application. However, work on the improvement of the Yak-9 conducted throughout the war, and even after its completion. Yak-9 22 had modifications, 15 of which were built in series.

And became the first modification of the Yak-9D with increased fuel to 480kg and Yak-9T equipped 37mm automatic cannon NS-37. The issue began in the summer of 1943 years.

Yak-9 scheme

 

A few words should be said regarding the option "T". Installation of such a powerful weapon in the fighter pilots was perceived ambiguously. On the one hand, one hit with a gun was enough to kill any enemy fighter aircraft (bombers usually was enough 2-3 hit), but on the other - rate of gun was 240 rounds per minute (4 shots per second), and even though it is high indicator for 37 mm guns, but it is low for aircraft guns.

 

In addition, the gun had a strong impact, and only the first round in the firing queue flew right on target and 2-3 shells near her. Therefore, the efficient use of aircraft with such an instrument had to have a high accuracy, which has not all pilots. But those who had, just after sowing death and destruction. Besides the fact that the NA-37 cope with any aircraft, with armor-piercing projectiles in the film, she has coped 50-60mm armor, ie could hit almost any enemy tank (the upper armor of tanks had not particularly thick), and even to put on the bottom of the small-sized boat.

After that, Yakovlev Design Bureau has gone even further by setting 45mm NA-45 gun on his plane. He got the name of Yak-9K. However, it is clear that even if we could use the gun 37mm not all, the 45mm even more. Therefore, and even because of the poor performance of the aircraft cannon of this modification is not mass produced.

The next version became mass Yak-9M, which had the capacity tanks like the Yak-9D and the possibility of NA-37 like variant "T". In addition, it was equipped with a more powerful engine M-105PF-2 and generally have a modified structure, and hence higher performance characteristics. Release it began in 1944 year. He became a substitute in all parts of the previous versions, as has absorbed the advantages of each.

Yak-9 scheme

 

Also in the year 1944 appeared Yak-9DD, who had a supply of fuel in 630 kg and Yak-9R equipped with a camera for reconnaissance.

 

Then there was a remarkable machine - the Yak-9B, which had a bomb doors of the cockpit, in which could be placed four bombs 100kg or four cassettes for 32 cumulative anti-tank bombs or mass in 1.5 2.5 kg. Such aircraft were produced 109 units, and they are generally well established itself as light bombers. But they had one major drawback: the bomb bays were located so that the download of the center of gravity shifted strongly back that very negatively affect the flight performance of the machine, in addition, when the plane dropped a bomb sharply "nodding" nose, which was very dangerous.

 

Haraktristiki Yak-9
  Yak-9 Yak-9D Yak-9DD Yak-9T Yak-9K
Specifications
Crew 1
LengthM 8,5 8,6 8,66
WingspanM 9,74
wing area, M² 17,15
Empty weightKg 2200 2350 2346 2298 2291
Weight normal takeoffKg 2873 3174 3276 3025 3028
The mass of fuelKg 322 486 630 330 475
Engine 1 × M 105PF 1 × VC-105PF 1 × M 105PF 1 × VC-105PF
PowerHp (kW) 1 × 1180 (868)
Flight characteristics
The maximum speed at heightKm / h (m) 512 (0)
552 (1800)
577 (3900)
535 (0)
567 (1659)
591 (3650)
522 (0)
564 (1000)
584 (3900)
533 (0)
574 (2100)
597 (3930)
518 (0)
573 (3750)
Landing speedKm / h 130 143 145 144 142
Practical range, Km 848 1360 2285 735 598
ceilingM 10750 9800 9400 10000 10000
Time climb 5000 mMin 5,1 6,1 6,8 5,5 6,5
Time bends on 1000 mWith 2001-2003 26 26 2001-2003 2001-2003
Wing loadingKg / m² 167 192 191 176 176
Thrust-to-weight ratioW / kg 306 272 263 283 283
Run-upM 320 370 400 380 345
MileageM 485 550 500 500 455
weaponry
Cannonball 1 × 20 mm ShVAK
120 rds.
1 × 37-37 mm NA
30 rds.
1 × 45-45 mm NA
29 rds.
Machine-gun 1 × 12,7 mm UBS
200 rds.

 

 

The last of the big family "nines", who should be mentioned is the Yak-9U, which appeared at the end of the year 1943. He had a much improved aerodynamics, a new, more powerful engine M-107A and an additional machine gun UB. All this together greatly improved performance characteristics of the aircraft. But nedovedennost low engine life and problems with its cooling strongly "slowed down" the deployment of mass production, so the plane started to act in part until the end of the war.

In general, the Yak-9 - is a piece of national history. It was his appearance on the battlefield marked the end of unchallenged dominance in the air by German aircraft.

 

Yak-9 video

Military aviation

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Surprise some comments- "none of the aircraft in the territory of the USSR was not produced in such quantities ..." how about In-2 and IL-2 ??? "The most massive strike aircraft 40h" - first fighter is not a strike aircraft, and in vtoryh- if fighting were due samolety- how about the same IL-2 (36163), Spitfayr- (20351), Me-109 (from 30 to 34tys) PV-190 (20 thousand). "The quality and reliability of machines produced ..." - probably because of the high quality and reliability of non-combat losses of at least twice the combat

Soviet fighter model Yak-9 as for me is a really high-quality fighting machine during the Second World War. The merit of the appearance of this device lies entirely on the shoulders of the legendary designer Alexander Yakovlev. In addition, it was manufactured accelerated pace in many plants, due to which it is the most massive attack aircraft 40-ies. Not one aircraft in the territory of the USSR and Russia are not produced in an amount of 16,7 thousand units.
When designing the car designers have relied on the development of such Mahin as the Yak and Yak-7-1, so it's safe to say that the Yak-9 was a continuation and qualitative modification of the previous machines. As for me, it is very much like a 7-th model, but, in turn, more advanced in almost all parameters. Advantages of the new machines can be explained to greater use of light metals and accumulated experience in the production of Yak-7. By reducing the weight it was obtained the possibility to increase the fuel supply to increase the radius of the aircraft. Just could increase the amount of equipment and weapons. In general a great and perfect machine of the time, I admire them!

Yak-9, developed as a natural development of the range of light single-engine fighter design AS Yakovlev, has become the most popular aircraft of this type of war period. Proven aerodynamic design allowed engineers to design bureau to focus on other ways of improving the product. Especially as an opportunity to make greater use of metal, the lack of which is gradually eroding. The design of the Yak-9 remained mixed, but in the basic version the wing spars were combined made of aluminum and steel. Subsequently, many wooden units and details were gradually replaced by metal. Winning the title made it possible to increase the payload of the machine. Another feature of the Yak-9 became its saturation instrumentation equipment - a luxury that the creators themselves are brought aircraft early in the war.
In modern terminology, the Yak-9 can be called a multi-purpose aircraft. Depending on the modification of the machine served as fighters, bombers, attack aircraft, fotorazvedchika, long-range aircraft and communications, the training board. Total Yak-9 22 was made in the embodiments, the serial 15. This official list is not exhaustive, as some military units and repair works were made operational modifications in arms, caused by the military requirements of the time and did not have its own alphabetic cipher.

That's really powerful military machine. During the second world with the help of the Yak-9 it shot down a huge number of enemy aircraft. I recently became interested in this subject, but I can say that Yakovlev aircraft were widely used in the fighting for our land. With regard to this model is its quality and reliability have been obtained at the expense of accumulated experience of designers on the previous models. Besides the high quality can be identified by the fact that the Yak-9 is the most popular serial fighter of the time.

Take a look at the engine. Not Russian. Hispano-Suiza ...

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