| Název: Name: | Jakovlev Jak-28B | Yakovlev Yak-28B |
| Originální název: Original Name: | Яковлев Як-28Б | |
| Kategorie: Category: | bombardovací letoun | bomber aeroplane |
| Výrobce: Producer: | DD.MM.1959-DD.MM.1961 Irkutský letecký závod č. 39, Irkutsk | |
| Období výroby: Production Period: | DD.MM.1959-DD.MM.1960 Jak-28 DD.MM.1961-DD.MM.1961 Jak-28B | |
| Vyrobeno kusů: Number of Produced: | 5 Jak-28 37 Jak-28B | |
| První vzlet: Maiden Flight: | 05.03.1958 Jak-129 | |
| Osádka: Crew: | 2 | |
| Základní charakteristika: Basic Characteristics: | ||
| Vzlet a přistání: Take-off and Landing: | CTOL - konvenční vzlet a přistání | CTOL - conventional take-off and landing |
| Uspořádání křídla: Arrangement of Wing: | jednoplošník | monoplane |
| Uspořádání letounu: Aircraft Concept: | klasické | conventional |
| Podvozek: Undercarriage: | zatahovací | retractable |
| Přistávací zařízení: Landing Gear: | kola | wheels |
| Technické údaje: Technical Data: | ||
| Hmotnost prázdného letounu: Empty Weight: | ? kg | ? lb |
| Vzletová hmotnost: Take-off Weight: | 13630 kg | 30049 lb |
| Maximální vzletová hmotnost: Maximum Take-off Weight: | ? kg | ? lb |
| Rozpětí: Wingspan: | 11,64 m | 38ft 2,26in |
| Délka: Length: | 20,20 m | 66ft 3,27in |
| Výška: Height: | 4,30 m | 14ft 1,28in |
| Plocha křídla: Wing Area: | 35,25 m2 | 379.43 ft2 |
| Plošné zatížení: Wing Loading: | ? kg/m2 | ? lb/ft2 |
| Pohon: Propulsion: | ||
| Kategorie: Category: | jednoproudový | turbojet |
| Počet motorů: Number of Engines: | 2 | |
| Typ: Type: | Tumanskij R-11AF-300 o tahu 38,25 kN / 56,39 kN s přídavným spalováním | Tumansky R-11AF-300, thrust 8598 lb / 12677 lb with afterburner |
| Objem palivových nádrží: Fuel Tank Capacity: | ? | ? |
| Výkony: Performance: | ||
| Maximální rychlost: Maximum Speed: | 1900 km/h v 12000 m | 1180.6 mph in 39370 ft |
| Cestovní rychlost: Cruise Speed: | ? km/h v ? m | ? mph in ? ft |
| Rychlost stoupání: Climb Rate: | ? m/s | ? ft/min |
| Čas výstupu na výšku: Time to Climb to: | ? min do ? m | ? min to ? ft |
| Operační dostup: Service Ceiling: | 16200 m | 53150 ft |
| Dolet: Range: | 1950 km | 1211.7 mi |
| Maximální dolet: Maximum Range: | 2630 km | 1634.2 mi |
| Výzbroj: Armament: | 1x kanon NR-23 ráže 23 mm, 50 nábojů 1200-3000 kg pum | 1x 23 mm NR-23 cannon, 50 rounds 2646-6614 lb of bombs |
| Uživatelské státy: User States: | | |
| Poznámka: Note: | - tři prototypy, Jak-129(Jak-28-1), Jak-28-2 a Jak-28-3 vznikly konverzí Jak-26 - Jak-28 se od Jak-28B lišily absencí radaru RBP-3 | - Yak-129 (Yak-28-1),Yak-28-2 and Yak-28-3 prototypes were converted from Yak-26 - Yak-28 differed from the Yak-28B by the absence of radar RBP-3 |
| Zdroje: Sources: | Gordon, Y.; Komissarov, D.; Komissarov, S. OKB Yakovlev: A History of the Design Bureau and its Aircraft. Midland Publishing, Hinckley 2005. ISBN 1-85780-203-9. Gunston, Bill; Gordon, Yefim. Yakovlev Aircraft since 1924. Putnam Aeronautical Books, London 1997. ISBN 0-85177-872-0. Якубович, Николай. Боевые самолеты Яковлева. Эксмо, Москва 2013, ISBN 978-5-699-64800-9. Медведь, А. Н. Семейство самолетов Як-26, Як-27 и Як-28, Авиаколлекция 2008/07. Gordon, Yefim. Yakovlev Yak-25/-26/-27/-28 - Yakovlev's Tactical Twinjets. Midland Publishing, Hinckley 2002. ISBN 1-85780-125-3. ruslet.webnode.cz | |
Jakovlev Jak-28B [kód NATO: Brewer-A]
Yakovlev Yak-28B
Яковлев Як-28Б
Yakovlev Yak-28B/ Yakovlev Yak-28B
In 1959, serial production of Jak-28 bombers, derived from the type series, began in Irkutsk Jak-25. Three prototypes, the Jak-129, the Jak-28-2 and the Jak-28-3, were created by converting the Ako-26. State exams Jak-28 began 14.09.1958. Soon after, it was decided to mass-produce the bomber. At the end of 1959, the first 3 serial machines were built, equipped only with the optical sight OPB-11 and unable to operate in any weather. In 1960, two more serial JaK-28 machines were completed, equipped with the RSBN-2 "Svod" radio navigation system.
Since the first serial machines, equipped only with an optical sight, did not allow to perform bombing tasks other than in good visibility (and nothing changed the additional installation of radionavigation equipment), already in 1960 began mass production of another version, equipped with radar sight RBP-3 ( factory designation изделие 28Б). A total of 37 aircraft, designated the Jak-28B, were produced and handed over to the USSR Air Force for training and combat training. The manufacturer guaranteed the aircraft a maximum speed in the range of 1600-1700 km/h, a practical range of 14-15000 m and a range of 1550 km without additional fuel tanks. Compared to the values reached by the prototype during the tests, it was a decrease in performance of serial machines by 10-15%. Another disadvantage of the machines was the inaccuracy of the on-board navigation and aiming system. The aircraft were practically usable only against large ground targets, or large surface vessels, while the role of the front bomber required the destruction of small, point targets. However, the RBP-3 radar sight did not have the ability to recognize a column of cars or a group of tanks on reflection from the field. The result of development and production was therefore an aircraft which could not fully perform the tasks required of it.
The production of Jak-28B was followed by versions Jak-28L and Jak-28I equipped with additional systems and finally meeting the requirements of the army for the aircraft.
Med.A. Aviation Collection 7/2008
http://www.airwar.ru/enc/bomber/yak28.html
Reklama
http://www.airwar.ru/enc/bomber/yak28.html
.![Jakovlev Jak-28B [kód NATO: Brewer-A] - Jak-28](/attachments/217/yak28-3.jpg)
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Jak-28
http://www.airwar.ru/enc/bomber/yak28.html
http://aviadejavu.ru/Site/Crafts/Craft20724.htm
. ![Jakovlev Jak-28B [kód NATO: Brewer-A] - Jak-28B](/attachments/217/yak28-4.jpg)
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Jak-28B
![Jakovlev Jak-28B [kód NATO: Brewer-A] -](/attachments/217/1472839005_17-3.jpg)
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| Type | Jakovlev Jak-28B [kód NATO: Brewer-A] |
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| Date (DD.MM.RRRR) | DD.MM.RRRR |
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