Fighter aircraft Yak-9 Yak-9U N1157H (Yak-9UM) at Reno, USA Role Fighter National origin Manufacturer OKB Designer First flight Summer 1942 Introduction October 1942 Primary user Produced 1942–1948 Number built 16,769 Developed from The Yakovlev Yak-9 was a single- used by the in and after. Fundamentally a lighter development of the with the same armament, it arrived at the front at the end of 1942.

The Yak-9 had a lowered rear fuselage decking and all-around vision canopy. Its lighter airframe gave the new fighter a flexibility that previous models had lacked. The Yak-9 was the most mass-produced Soviet fighter of all time. It remained in production from 1942 to 1948, with 16,769 built (14,579 during the war). Towards the end of the war, the Yak-9 was the first Soviet aircraft to shoot down a jet. Following World War II, it was used by the during the.

Energy transfer in molecular systems at the surface of metal solids and nanoparticles. Authors; Authors and affiliations. Klimov, V.V., Nanoplazmonika.

Contents • • • • • • • • • • • • • Design and development [ ] The Yak-9 represented further development of the successful fighter, a production version of the lightened Yak-7DI, taking full advantage of the combat experience with its predecessor. Greater availability of allowed for lighter construction which in turn permitted a number of modifications to the basic design. Yak-9 variants carried two different wings, five different engines, six different fuel tank combinations and seven types of armament configurations. Yak-9U [ ] In December 1943, it became possible to install the more powerful M-107 engine on a new airframe: the engine mounting was new with individual faired exhaust pipes; fuselage structure and wings were made of metal and the whole aircraft was covered with a skin. Fuel capacity was increased to 400 l (106 US gal). In order to re-balance the model, the wing was repositioned four inches forward and in order to improve pitch control, the horizontal tail surfaces were slightly reduced.

The rear part of the canopy was lengthened and the antenna cable was moved inside it. Usual armament was a 20 mm (0.79 in) with 120 rounds firing through a hollow propeller shaft and a 12.7 mm (0.50 in) machine gun with 170 rounds. The State trials took place from January to April 1944. They revealed a clear superiority in top speed over all other fighters in service on the Eastern front, up to 6,000 m (19,685 ft). The aircraft was simple to fly and stable. Unfortunately, the problems with the M-107A engine and all the M-105 variants from which it derived, persisted: overheating, oil leaks, loss of pressure in climbs, intense vibrations, burning-out of and a short engine life.

Despite these defects, the Yak.9U/VK-107 was ordered into production in April 1944, with 1,134 machines produced by December 1944. Operational history [ ] Second World War [ ] The first Yak-9 entered service in October 1942 and first saw combat in late 1942 during the.

The versatile Yak-9 operated with a wide variety of armament for use in anti-tank, light bomber and long-range escort roles. At low altitude in which it operated predominantly, the Yak-9 was more maneuverable than its main foe, the, but was far less well armed.

Ease Acoustic Software Cracks. 1/31/2018 0 Comments. • Most of our software, manuals and tutorials are provided in english language only. The EASE software suite provides system designers and consultants with an invaluable set of tools for all aspects of professional practice, from detailed, realistic modeling and simulation of venue acoustics and sound system performance to informative and engaging client presentations, as well as professional data assessment and verification. Located in Berlin, Germany, AFMG is a worldwide leader in software for the pro-audio industry and has created the industry standards EASE and EASERA software for acoustic simulation and measurement as well as their related products EASE Focus, AFMG SysTune, EASE Address, and EASE SpeakerLab. Software Downloads for 'Code Register Acoustica'. It is time to keep crackers. Rapid SEO Tool is unique search engine optimization software designed to ease the. In addition to several stages of acoustic. The revolutionary ease of copying and distribution of. Kore 2 is a powerful software / hardware system with a versatile library of. The room was softly lit and obviously had an acoustic design that allowed for pleasant. Flatbread crackers were crisp. They accepted our group with ease. WordPress as CMS Build business sites with ease using Swift. Swift has everything you need to build a business website. The 10 page templates lets you choose.

A series of improvements in performance and armament did not hamper the superb handling characteristics that allowed its pilots to excel at dog-fighting. Soviet pilots regarded the Yak-9's performance as on the same level as the Bf 109G and Fw 190A-3/A-4. After the, in the second half of 1943, the famed Free French unit became a Groupe and was equipped with the Yak-9. In June 1944, at the beginning, the French Yak-9s achieved their first air victories, but suffered their first losses as well, in the region. On 15 July 1944, the Group was moved to Mikountani, in, while German armies were pushed back about 400 km (250 mi).

The French pilots took their Soviet chief air crews in the fuselage of the fighters, but during the trip, Lieutenant Maurice de Seynes' Yak suffered a mechanical failure. The French pilot refused to bail out and thus abandon his Soviet mechanic Biezoloub, who had no parachute. De Seynes attempted an emergency landing instead, but both airmen were killed in the crash.

The first unit to use the Yak-9U, between 25 October and 25 December 1944, was 163.IAP. Pilots were ordered not to use the engine at combat speed since this reduced its life to two or three flights only. Nevertheless, in the course of 398 sorties, the unit claimed 27 Focke-Wulf Fw 190As and one Bf 109G-2, for the loss of two Yaks in dogfights, one to flak and four in accidents.

For production number and year manufactured information, click on the 'Year' link in the tables. Serial Numbers (1. 3 on a letter code, production number and ending letter(s) and number code were used in the serial number to denote the model, production number and month and year of manufacture. Technical information on Villiers engine serial numbers. Villiers Engine Indentification. 434 JDL Single Speed Francis-Barnett Model 50 1947-1949. Hi there,,not had much luck on the villiers site can some1 ID my villiers engine, number on casing = 935/18884D also there is a number on the barrel= P 7138 year. The MK 10 is a side valve four-stroke engine. Villiers engine identification. Villiers Engine Serial Number. It is a Villiers 4-stroke petrol engine Serial Number: 351B 59075 Mk12 H/S Thanks, Ian. Can anyone explain the Villiers engine number system, and what model Victas the number sequences started and finished on. I m trying to work out what model Victa. How to Decode Your Engine's Serial Number. Mail order parts for villiers engines and allen scythes. 2 stroke, barrell number B6698: 25A 2 Stroke front part of 2 man chainsaw. Engine Data Estimates for Overhaul Governor. ENGINE DATA Villiers Mark 10 and 12. I the engine will not start after a n. Villiers Engineering Co. The first Villiers engine I acquired was.

The Yak-9U contributed greatly to Soviet air superiority, and the Germans avoided the Yaks “without antenna mast”. A large formation of the Yak-9DD version was transferred to (the capital of, in Italy) to help Yugoslav partisans in the. One of the top-scoring Yak-9 pilots was First Lieutenant A.I.