Yakovlev Yak-27

Yakovlev Yak-27
Type:	Reconnaissance and bomb fighter plane
Design country:	Soviet Union
Manufacturer:	OKB Yakovlev
Commissioning:	1959
Number of pieces:	180

The Jakowlew Jak-27 ( Russian Яковлев Як-27 , NATO code name " Mangrove ") is an aircraft from the Jakowlew design office . It was used by the Soviet Air Force as a reconnaissance aircraft , bomber and fighter .

development

The design was based on the Jak-125 , the prototype of the Jak-25R and Jak-25B from 1956. The new model was given a somewhat slimmer fuselage and a glazed bow as a workplace for the navigator. The wings were double swept and provided with a so-called saw tooth on their leading edges.
During development, care was taken to ensure that the equipment was changed quickly so that the model could alternatively be used as a reconnaissance or tactical bomber. This type was named Jak-27R .
In 1959 the all-weather interceptor version Jak-27P with radome appeared. Both variants were commissioned in 1959.
The Jak-27 was used until the late 1960s and then replaced by the more powerful Jak-28 .

technical description

The Jak-27 was made in all-metal construction. The most obvious differentiating feature from the Jak-28 was the middle -wing configuration of the wings with a high-speed profile (the Jak-28 was a shoulder -wing wing ). All wings and the swept normal tail were self-supporting.
The nose and main wheels of the tandem landing gear were pulled into the fuselage during the flight, the two support wheels at the ends of the wings could be folded back.

Technical specifications

Jak-27 in the Chodynka Museum (1993)

Parameter	Data
Years of construction	1956-?
span	11.90 m
length	16.76 m
height	4.05 m
Takeoff mass	11,340 kg to max. 17,500 kg
Top speed	1,150 km / h
Summit height	15,250 m
Rate of climb	95 m / s
Range	3,000 km
crew	2 (scouts / bombers), 1 (fighters)
Engines	two turbine air jet engines Tumanski RD-9 B
thrust	32.6 kN each

Armament

internal guns

• 1 × 23 mm Nudelman-Richter NR-23 automatic cannon with 50 rounds of ammunition

or

• 1 × 30 mm automatic cannon Nudelman-Richter NR-30 with 80 rounds of ammunition

Gun load of 1,000 kg as well as two suspension points

Air-to-air guided missile

• 2 × PU-1-8 start rails for 1 × Bisnowat R-8MR / M1R (AA-3 "Anab") each - radar-controlled for medium -haul routes (only Jak-27K-8 variant)
• 2 × PU-1-8 start rails for 1 × Bisnowat R-8MT / M1T each (AA-3 "Anab") - infrared controlled for medium distances (only variant Jak-27K-8)

Web links

Commons : Jakowlew Jak-27  - Collection of pictures, videos and audio files

Individual evidence

1. ↑ details of the Yakovlev design office. Archived from the original on July 26, 2013 ; accessed on March 23, 2020 .