Soviet "whales" Claude Dornier. Part I

Soviet "whales" Claude Dornier. Part I



"Val" in translation from German - "whale". This flying boat, designed by the famous designer Claude Dornier in 1920, is rightly considered one of the truly outstanding aircraft. Launched in production in 1922, the Val entered the arsenal of many countries, was actively used by civil aviation from the tropics to the Arctic ice, demonstrating high operational reliability, good seaworthiness and high carrying capacity. A significant role was played by these seaplanes in domestic aviation.

In the second half of the twenties, the Russian hydroaviation was in a severe crisis. The fleets were practically absent modern seaplanes. In the Baltic, mainly German U-20 floats, produced at the Junkers plant, and on the Black Sea, rather outdated Savoya C-16bis flying boats, were used on the Baltic. These machines had an insufficient range, were poorly armed, and were very worn out. Float variants of land vehicles, such as the MU-1 and MP-1, could not fix the case, because they also had a small radius of action, and in addition differed disgusting seaworthiness.

The fleet was essentially blind, not presenting the situation off the coast of potential adversaries. Needed was a new long-range reconnaissance aircraft that would be able to work in the open sea. But the prospects for its creation in domestic factories have not yet emerged. The only "achievement" of the national hydroaviastro by this time was the boat M-24 D. P. Grigorovich. Obviously unfortunate, it was considered suitable only for use for educational purposes. The design of other domestic seaplanes was conducted, but there were no real results yet.

“We have to admit the fact that in the current state of the existing material part, the aviation of the Black Sea will only be able to fulfill operational tasks to a small extent fleet. The dilapidation of the Savoy 16bis flying boats allows the use of Savoy aircraft only at a slight distance from the coast. Thus, long-range reconnaissance is not provided with aerial surveillance, "the chief of the Red Army naval forces pointed out in 1926.



For this reason, at the beginning of August 1925, the Air Force Command (which then included fleet aviation) asked the Soviet Embassy in Germany to “sound out” how the Dornier Metallobuten company would react to the proposal to sell our country 20 'Valley' The German response came very promptly. On August 19 Moscow received a proposal with specific deadlines, the technical characteristics of the options offered and the cost under various delivery conditions.

It was decided to purchase two copies for testing in the Soviet Union, after which a further decision was made. In early September, the Directorate of the Air Force sent a telegram in Germany to the trade mission in Germany to allocate funds for the purchase of two boats, and on October 20 the order N211 was already issued (also known as DE-55). Along the way, our military asked how much cheaper an order would be if we take 12 planes right away. But the discount did not seem to pay off the risk, and eventually settled on the original version.

Since the Versailles agreement forbade the construction of aircraft of this class in Germany, the Germans carried out only design modifications of the flying boat under Soviet requirements, and the assembly of cars was to be conducted by a branch of the company in Italy, in the city of Marina di Pisa.

For the prototype, they chose “Vali”, built on the order of Chile, but there were quite a few differences from them, primarily in terms of equipment and weapon systems. On these planes it was supposed to install English machine guns, French turrets and photographic equipment, Italian radio stations, and even instruments - generally “from pine forest” - German watches, English compasses, etc.

The main difference from the "Chileans" steel engines "Lorrain-Dietrich" 12Е, three-row W-shaped with water cooling, power 450 hp The choice fell on them, it seems, because of cheapness, but, by no means, not because of high characteristics. Similar engines were mounted on the Farman, Goliath bombers bought by the UHVS, and they were going to be put on the R-ZLD reconnaissance aircraft. Ours first aimed at the Liberty or Eagle engines, which appeared in Dornier’s proposals, but then preferred Lorrain-Dietrich.

According to the approved conditions, the aircraft was considered as a long-range reconnaissance aircraft with a crew of three (later four) people. The fuel supply should have been enough for five and a half hours of flight. Two Lewis machine guns with ammunition from 20 stores (each with 47 ammunition) made defensive armament. According to those conditions, it was established that the airplane reached a maximum speed of 190 km / h while landing less than 85 km / h, the practical ceiling was installed in 4200 m.

Soviet copies of "Valei" at the plant in Marina di Pisa received 56 and 57 numbers (the last Chilean with Eagle engines had the number 55). Under the contract, the seaplanes were required to pass the summer 1926 year. This is what happened. In July, the assembly of cars was finished, and on August 2 the aircraft with the number 56 took off. It was originally planned that August 15-16 both cars will fly to the USSR. But only 17-18 of August after testing "Wali" received the necessary certificate of the Ministry of Aeronautics of Italy. Machines prepared for departure, but there were diplomatic obstacles - the planes did not let the Greeks or the Turks through their airspace. Already gathered to disassemble the "Wali" and in the boxes to send to Odessa, but finally the diplomats agreed on the route and you can start the flight.

26 September 1926, both cars successfully reached Sevastopol. Aircraft led Italian crews. One of the directors of Dornier, Schulte-Frolinde, and a couple of employees of the Soviet trade mission in Milan who participated in the preliminary acceptance of the flying boats at the factory arrived with Valyami. The final acceptance took place in Sevastopol in early October.

New boats aroused great interest among Soviet aviation specialists. An entire delegation from TsAGI arrived with the director G.A. Ozerov, V. Samsonov arrived from OMOS, two engineers were seconded from the GAZ-5 plant, and later the company director himself joined them. The commander of the aircraft was the head of the Black Sea Air Forces, V.K. Lavrov, the second pilot was an experienced pilot Rybazhul.

Overall rating "Valya" was very high. The pilots said: "The plane was made very carefully. The metal seaplane was much better than the Junkers. The access to the engines is good, the mechanic is between them during the flight and can even do some repairs if necessary. The plane turns well. Machine control simple and easy and does not require more attention as needed to control an ordinary heavy aircraft. "



But not everything was so smooth. The maximum speed prescribed by the technical conditions was never achieved, in fact, we got 167,8 km / h. Moreover, the pilots noted the sensitive vibrations of the power plant. Representatives of the Dornier first tried to blame everything on engine wear, but when Lavrov offered two new engines from the warehouse, they quickly went back down. As a result, it turned out that the propellers do not correspond to the "Lorrain-Dietrich" motors. Since no one had previously ordered airplanes with LD 12Е, the Dornier did not perform any work on debugging such a motoinstaller. The screws "Heine", installed on airplanes No. XXUMX and No. XXUMX, were intended for the Asso engines and on the Soviet Wali, they were installed only because they turned out to be the most suitable of what was available. The selection of screws for LD 56 was hampered by unusually high, for the twenties, working turns of the French engine - 57 rpm (for example, Eagle had 12 rpm, and Lion - 1850 rpm).

In Sevastopol, French Levassor screws were mounted on one of the airplanes. With them, the level of vibrations decreased and the speed also increased slightly - to 180,5 km / h. They found the English metal propellers "Fairy Reed". This time the speed was 187 km / h, and the flight altitude rose to 3435 m, which was already close to the parameters of the task. Regarding the vibrations, the Germans assured that their level does not pose a danger to a solid all-metal aircraft.

As a result, the flying boats were “conditionally accepted”, while the company was presented with a number of requirements, the main of which was the sending of new propellers. Both "Valya" was put into operation in the Sevastopol 60 th squadron. The pilot Romashkin commanded her. The squadron was assigned mainly training tasks. It was necessary to prepare more crews for flights on the Valya, as well as to accumulate experience in operating these aircraft.

In December, the new screws promised by the Germans arrived in 1926 from Italy, but in fact they turned out to be even worse than the old ones. As a result, they decided to order special screws from TsAGI, with which 27 of December entered into a corresponding agreement.

The appearance of "Valey" on the Black Sea Fleet immediately aroused unhealthy interest from various organizations that immediately tried to "intercept" the flying boats from the military. So, in February, 1927-th one plane requested for the Arctic expedition. The car was already prepared for transfer, but at the last moment the order from Moscow was changed and two smaller aircraft were taken to the north (C-16bis and U-13). In December, 1926-one "Val" tried to transfer to the Far East, but here Lavrov managed to defend the interests of the Black Sea.

Meanwhile, the Sevastopol pilots mastered German technology. By November, 1926 had finished training the first three pilots who flew out of the Vala on their own. Great nagging vibrations. Despite the assurances of Dornier specialists that they were harmless, they regularly caused motor vehicle failures. For three months of intensive use, the carburetor brackets broke six times from shaking, the hood mounts five times, the gas lines and the control rods broke several times. R.L. Bartini, who at that time was a senior engineer of the squadron, using home-made devices, tried to grope resonant modes and, as a result, was able to determine the area of ​​critical speed. But this, of course, was not a cardinal solution to the problem.

In mid-April, 1928 of the year on the Vala No. 57 comparative tests of various types of propellers were organized. Pilot V.V. Volyn in the air tested nine types of French, English, German and domestic screws. The best were the metal propellers "Fairy-Reed", followed by the propellers of the TsAGI design. On them and stopped.



In the autumn of 1927, the decision was made to transfer four float South-1 from the Black Sea to the Baltic Sea, but in January 1928 of the year, the UHVS changed the distribution order, ordering to send three South-1 and two Valya. The route ran through Rostov, Stalingrad, further up the Volga to Nizhny Novgorod, and then, through Yaroslavl and Shlisselburg. The ultimate goal was Leningrad. The flight took place from 20 to 24 in May 1928 of the year. But then only one "Val" flew to the north, the second was faulty. After the repair, this second machine was finally used to test the most perfect then, German Hertz-Boykov Bomb Sight BL 200. It overtook the Baltic in August.

In the Baltic Fleet, "Vali" entered the 66 squadron stationed in the Leningrad Rowing Port. In the Baltic, the German flying boats were positive. "Long-range reconnaissance aircraft" Dornier-Val "have a payload and armament that fully meets its purpose, somewhat inferior in some respects to foreign aircraft of a similar type in horizontal speed and ceiling, but having a significantly shorter flight duration"

"Vali" at times showed fantastic reliability. In the autumn of 1929 of the year, during fleet maneuvers, the plane No.57 stormed by a gale from 150 m and hit the surface of the water of the Gulf of Finland. And after that, the pilots Konkin and Ostretsov managed to start the motoinstallation and safely navigate to the coast.



Airplanes, made in 1926 year and intensively exploited, by the end of 1930-th were already rather worn out and flew less than they were in the workshops. The same unlucky (or lucky) machine №57, during 1929 of the year, suffered four times an accident (mainly due to the engine). As a result, in 1931, “Vali” with “Lorrain” engines were transferred to “Group B”, i.e. restricted their use to auxiliary targets only and returned to the Black Sea.

By this time, the next generation of the already-modernized Vali had been exploited in Soviet aviation. Testing the first two flying boats revealed a number of shortcomings. The main power unit was criticized. Flipped by cheapness, officials from the UNHCR ordered a Lorrain-Dietrich, ignoring the obvious flaws of this engine. “The Lorraine-Dietrich motors have no merit and were taken for supply in vain,” the NTK report stated.

It was planned to replace LD 12 with a Liberty pair. Despite some loss in total power, these engines had better efficiency, which allowed to reduce the fuel supply, and according to estimates promised even a slight increase in speed. Subsequently, the more promising German VMW VI engines, scheduled for production in the Soviet Union, were selected.

According to the experience of testing, Soviet engineers proposed to refine the design of the flying boat and weapons. In order to improve the seaworthiness, it was proposed to raise the nose to 25 cm; in order to reduce the possibility of damage to the bottom of the boat, it was recommended to install wooden bars on the bottom in shallow water; in order to increase the zone of firing, the tail turret was advised to make it as on Argentinian ramparts, rolling from side to side. The cockpit was subjected to criticism, our pilots found them cramped to work in the winter - at that time they were sent to fly in bulky coats and felt boots. For example, a fur coat interfered completely with “taking over” the helm column during takeoff. Some claims have arisen on the dashboard, the quality of manufacture of individual parts.

With this in mind, we have prepared a new contract for the purchase of 20 hydroplanes. New aircraft were badly needed by naval aviation. 9 May 1927 of the year NTK UVVS approved the final technical conditions for acceptance of the new batch of "Valey". Provided for the strengthening of the frames at the main redan; nose profile change, the nose rose a little, which ensured takeoff and landing at a wave up to 1,5 m; an increase in the area of ​​the dural lining of the center section. The tail section of the hydroplane was extended, the shape of the vertical tail unit was changed, and the automatic mooring lock was mounted (these differences then appeared on all Valyah, not just the Soviet order). Due to the increase in weight (the maximum take-off should have reached 6770 kg), despite the increase in engine power, the maximum flight speed did not increase much and, according to calculations, should be equal to 195 km / h. The weight was raised primarily by bombs; if the Lorraine variant carried four 82 kg bombs or eight 32 kg bombs, then the new one should have taken two 250 kg and four 80 kg. Large-caliber bombs were hung not to the bomb racks on the sides of the fuselage, as before, but to the "gills" of the boat. Aiming was carried out with the help of an optical sight "Hertz".



Defensive armament did not change, only the tail turret was now rolling. It was planned to equip all the cars with a planned Kodak camera. On the first two aircraft with "Lorrain-Dietrich" apparatus was not - our specialists did not have time to send the company drawings. There were no radio stations on them - they decided to save money. Bona fide Italians laid masts and antennas among the spare parts - maybe they would be useful (and really useful). Now, the radio decided to put right in Italy. For the Soviet cars were chosen "Marconi" AD-6F.

Engines planned type VMW VI E6.0 600 horsepower These were 12-cylinder V-shaped water-cooled motors. Special wooden propellers (front - four-bladed, rear - two-bladed) were to be made for them. Bearing in mind the problems with the screws last time, separate technical conditions were prepared for their acceptance, which are very detailed and rather tough. Separately purchased and motors. They were not included in the total cost of the order, they were received by representatives of the Air Force directly at the VMW plant and then sent to Italy.

It was envisaged that the Soviet side would also provide cameras, sights, Der-3 bomb racks (for 80-kg bombs), SBR-7 bombers. All other equipment was planned to be purchased in different European countries: fire extinguishers - German, rescue belts - English, turrets and life buoys - French, anchors and starters - Italian. Regarding the latter; At first, they wanted to buy VMW pneumatic starters complete with engines, then they reoriented to Italian ones, such as Piaggio. They were manufactured under license from the British firm "Bristol" and had their own compressor, while the Germans worked from a cylinder. For a seaplane operating at a considerable distance from the bases, a greater degree of autonomy, of course, was desirable.



According to the contract concluded by 22 on April 1927 of the year Metalloimport with Dornier Metalbouten, each seaplane (without engines and Soviet equipment) cost 40500 dollars. Fully order priced at 875150 dollars. This cost included spare parts, tools, consumables and a whole aircraft repair workshop. It was envisaged to carry everything from Italy, from rivets and paint, to a powerful crane. Flying boats were scheduled to take two series of 10 pieces.

Samples of military equipment and their drawings were urgently sent to Germany. The fact of designing military aircraft in Germany was carefully concealed. Therefore, the goods were transported in boxes with fake markings, and all correspondence was classified.

Sources:
Kotelnikov V. Flying boat Dornier "Val". SPb .: Gangut, 1995. C. 12-31.
Farina N. The flying boat "Whale" // Model-designer. 1999. No.2. C. 32-36.
Kotelnikov V. Slow, but Reliable // Wings of the Motherland. 1997. No.8. C. 6-9.
Sobolev, D., Khazanov, D. stories domestic aviation. M .: Rusavia, 2000. C. 57-62.
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  1. parusnik 6 November 2015 07: 51 New
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    Lorraine-Dietrich. .Remember ..
    - Adam! he cried, covering the rattle of the motor.
    - What is the name of your cart?
    “Loren Dietrich,” said Kozlevich.
    “Well, what is this name?” A machine, like a warship, must have its own name. Your "Lorenditrich" is remarkable for its remarkable speed and noble beauty of lines. Therefore, I propose to give the car a name - "Antelope-Wildebeest" ... Inspired by ..
    Thank you for the article .. look forward to continuing ..
  2. Amurets 6 November 2015 08: 59 New
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    In addition to the plus, no comments. This is just the dark side of our aircraft, thanks for deciding to cover it. I read that the boats were quite widely used in the development of the Northern Sea Route.
  3. Alex_59 6 November 2015 09: 02 New
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    At the beginning of the 30, my grandfather served in the 62 air squad of the Baltic Fleet on the flying boats S-62 Savoy, and then on them in the 55 air squadron of the Pacific Fleet. Then, in 36, they were re-equipped with our ICBM-2. If the author has information about the service of these aircraft in our fleet, I will be grateful for the article. He tried to search, but about that time very scarce information. The beginning of the 30, naval squadrons, some foreign aircraft - apparently this topic is of little interest to anyone, therefore there are no detailed publications.
    1. Amurets 6 November 2015 10: 13 New
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      Quote: Alex_59
      The beginning of the 30s, naval squadrons, some kind of foreign aircraft - apparently this topic is of little interest to anyone, and therefore there are no detailed publications.

      Unfortunately on the topic of foreign aviation, Lend-Lisa aircraft were more or less covered. The topic of foreign aviation in the Soviet Union was not welcomed by our ideologists and leaders. Something but very little is in the books: Artemyev Russian Maritime Aviation, Ivanov Krylia over the Sea, Aviation Russian fleet. There are a lot of books on MBR-2
      1. kugelblitz 6 November 2015 11: 24 New
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        I don’t remember exactly, but somewhere in the series of books on the Italian aircraft industry "Ali d'Italia" or in "Dimensione Cielo" it seems as they say they were released under license at the CANT aircraft plant.
      2. Alex_59 6 November 2015 11: 46 New
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        Quote: Amurets
        Something but very little is in the books: Artemyev Naval Aviation of Russia, Ivanov Wings over the Sea, Aviation of the Russian Navy. There are quite a lot of books on MBR-2

        Artemyev read, there are literally a couple of lines. There is a lot of information on ICBM-2, I would like to know more about the S-62 service in our Navy.
        1. Amurets 7 November 2015 03: 50 New
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          Quote: Alex_59
          I’d like to learn more about the S-62 service in our Navy.

          Alas! About Savoy, and especially S-62, very little came across. About S-55 came across more, it seems from A.S.Yakovlev.http: //www.airwar.ru/enc/other1/s55.html
          Here you can find all Savoy aircraft. Unfortunately, S-62 is not there. S-55 was in service with our fleet. This is a link to the Sky Corner encyclopedia. I could not find more encyclopedias on the Internet. Found: Aviation World 1998 02
  4. Taoist 6 November 2015 10: 42 New
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    Dornier Val - personally, I have a strong association only with the history of the Nobile expedition to Italy, or rather the mysterious death of R. Amundsen on this plane when trying to save Nobile. It was interesting to read about the history of these aircraft in the USSR.
    1. rubin6286 7 November 2015 12: 37 New
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      The German flying boats Dornier Val, used in the USSR for ice reconnaissance in the North, were purchased at the suggestion of the famous Russian and Soviet pilot B.G. Chukhnovsky, who was an enthusiast in the development of polar aviation. It was on this path that he happened to experience happiness in solving complex problems and achieving seemingly completely unthinkable results, and later in the field of design developments. The proposal of Chukhnovsky on the purchase of the aircraft became known to I.V. Stalin from A.M. Gorky, with whom the pilot was associated with warm friendly relations.
      The first Val was purchased at the end of May 1929. It was named "Komssevmorput-1" and received the designation "N-1", which laid the foundation for polar aviation aircraft. The Val turned out to be a solid and reliable machine. A flat bottom made it possible to take off from ice and snow, and if necessary, the plane could land on the ground. He had good seaworthiness and could withstand a long stay in the sea. In 1929, according to the results of flights, B. Chukhnovsky proposed a number of improvements and adaptations that improved the operation of the machine in the North. The following Komsevmorput-2 and Komsevmorput-3 vehicles made a significant contribution to the development of the Arctic.
      Source: Grigoryev A.B. “Albatrosses” M. Engineering. 1989.
  5. 31rus 6 November 2015 11: 11 New
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    Very interesting, thank you, that would be a series of articles on this topic
  6. The comment was deleted.
  7. kugelblitz 6 November 2015 11: 18 New
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    There was a good flying boat, the North was actively mastered with it in due time. At the same time, landing on the bottom withstood without consequences.
    1. jjj
      jjj 6 November 2015 17: 00 New
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      Yes, if there is a thaw in the evening and frost in the morning, then even the “Polish” skis with a special sliding coating are catching. Ordinary Soviet skis had to be sawn off from the snow first with cables pulled under them, and then beat with each beating hammer at the same time on each ski, while the pilot gave full throttle. This was the only way to tear off the ski An-2 from the parking lot. It happened that the plane froze in an hour at the FAC. And here is the whole boat. Imagine an epic.
      The story is interesting and informative.
  8. NIKNN 7 November 2015 15: 27 New
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    Plus, what else! Thanks to the author for the work, covering the little-known is a very noble thing hi