The Su-11 was an upgraded version of the Sukhoi Su-9 ('Fishpot') interceptor, which had been developed in parallel with the OKB's swept wingSu-7fighter bomber. Recognizing the Su-9's fundamental limitations, Sukhoi began work on the Su-11, which first flew in 1961 as the T-47 prototype.
The Su-11 shared the Su-9's delta wing, swept tailplanes and cigar-shaped fuselage, as well as the circular nose intake, but had a longer nose to accommodate the more powerful 'Oryol' (Eagle; NATO reporting name 'Skip Spin') radar set. A more powerful Lyulka AL-7F-1turbojet was installed, providing 9.8 kN (2,210 lbf) more afterburning thrust for improved climb rate and high-altitude performance (and to compensate for increased weight). The Su-11 can be distinguished from the Su-9 by the external fuel pipes atop the fuselage, aft of the cockpit.
The Su-9's beam-riding K-5 missiles were replaced by a pair of R-98 (AA-3 'Anab') weapons, usually one R-98MR semi-active radar homing and one R-98MT infrared guided. Like many interceptors of the period, it had no cannon.
Production of the definitive Su-11-8M began in 1962, ended in 1965, after about 108 aircraft had been delivered, although it is believed that at least some Su-9s were upgraded to Su-11 form.
A conversion trainer version, the Su-11U 'Maiden,' was also developed ; Similar to the Su-9U, it had full armament and radar systems for training purposes, but the second seat reduced its already marginal fuel capacity and was not intended for combat use.
Operational history
Development problems and accidents delayed squadron introduction with the Soviet Air Force (VVS)/ Soviet Air Defence Forces (PVO) until 1964 and only small number of aircraft were delivered.
Even with the superior radar, the Su-11 remained heavily dependent on ground control interception (GCI) to vector its pilot onto targets. It had no capability against low-flying aircraft either, and Sukhoi OKB considered the Su-11 to be a misfire, much inferior to the far more formidable Su-15 ('Flagon'). Nevertheless, a few examples remained operational until the early 1980s. The last Su-11s left front-line service around 1983.
^Antonov, Vladimir; Gordon, Yefim; Gordyukov, Nikolai; Yakovlev, Vladimir; Zenkin, Vyacheslav; Carruth, Lenox; Miller, Jay (1996). OKB Sukhoi : a history of the design bureau and its aircraft (1st ed.). Earl Shilton: Midland Publishing. ISBN9781857800128.
External links
Wikimedia Commons has media related to Sukhoi Su-11.
SU-11 Military Factory
Su-9/11 FISHPOT Global Security
Airwar.ru (RUS)
February 07, 2023
sukhoi, original, aircraft, designated, 1947, nato, reporting, name, fishpot, interceptor, aircraft, used, soviet, union, 1960s, 11role, interceptor, aircraftnational, origin, soviet, unionmanufacturer, sukhoifirst, flight, december, 1958introduction, 1964reti. For the original aircraft designated Su 11 see Sukhoi Su 11 1947 The Sukhoi Su 11 NATO reporting name Fishpot C was an interceptor aircraft used by the Soviet Union in the 1960s Su 11Role Interceptor aircraftNational origin Soviet UnionManufacturer SukhoiFirst flight 25 December 1958Introduction 1964Retired 1983Primary user Soviet Air ForcesProduced 1962 1965Number built 108Developed from Sukhoi Su 9Variants Sukhoi T 49 Contents 1 Design and development 2 Operational history 3 Operators 4 Specifications Su 11 5 See also 6 References 7 External linksDesign and development EditThe Su 11 was an upgraded version of the Sukhoi Su 9 Fishpot interceptor which had been developed in parallel with the OKB s swept wing Su 7 fighter bomber Recognizing the Su 9 s fundamental limitations Sukhoi began work on the Su 11 which first flew in 1961 as the T 47 prototype The Su 11 shared the Su 9 s delta wing swept tailplanes and cigar shaped fuselage as well as the circular nose intake but had a longer nose to accommodate the more powerful Oryol Eagle NATO reporting name Skip Spin radar set A more powerful Lyulka AL 7F 1 turbojet was installed providing 9 8 kN 2 210 lbf more afterburning thrust for improved climb rate and high altitude performance and to compensate for increased weight The Su 11 can be distinguished from the Su 9 by the external fuel pipes atop the fuselage aft of the cockpit The Su 9 s beam riding K 5 missiles were replaced by a pair of R 98 AA 3 Anab weapons usually one R 98MR semi active radar homing and one R 98MT infrared guided Like many interceptors of the period it had no cannon Production of the definitive Su 11 8M began in 1962 ended in 1965 after about 108 aircraft had been delivered although it is believed that at least some Su 9s were upgraded to Su 11 form A conversion trainer version the Su 11U Maiden was also developed Similar to the Su 9U it had full armament and radar systems for training purposes but the second seat reduced its already marginal fuel capacity and was not intended for combat use Operational history EditDevelopment problems and accidents delayed squadron introduction with the Soviet Air Force VVS Soviet Air Defence Forces PVO until 1964 and only small number of aircraft were delivered Even with the superior radar the Su 11 remained heavily dependent on ground control interception GCI to vector its pilot onto targets It had no capability against low flying aircraft either and Sukhoi OKB considered the Su 11 to be a misfire much inferior to the far more formidable Su 15 Flagon Nevertheless a few examples remained operational until the early 1980s The last Su 11s left front line service around 1983 Operators Edit Soviet UnionSoviet Air Defence ForcesSpecifications Su 11 EditData from OKB Sukhoi a history of the design bureau and its aircraft 1 General characteristicsCrew 1 Length 18 225 m 59 ft 10 in Wingspan 8 536 m 28 ft 0 in Height 4 7 m 15 ft 5 in Wing area 34 m2 370 sq ft Empty weight 8 562 kg 18 876 lb Gross weight 12 674 kg 27 941 lb Max takeoff weight 13 986 kg 30 834 lb Fuel capacity 3 440 kg 7 580 lb internal 4 620 kg 10 190 lb with external tanks Powerplant 1 Lyulka AL 7F 2 afterburning turbojet engine 99 1 kN 22 270 lbf thrustPerformance Maximum speed 2 340 km h 1 450 mph 1 260 kn at 1 100 m 3 600 ft citation needed Maximum speed Mach 2 2 Combat range 500 km 310 mi 270 nmi citation needed Ferry range 1 125 km 699 mi 607 nmi citation needed Endurance 1 hour 28 minutes internal fuel 1 hour 59 minutes with external fuel Service ceiling 18 000 m 59 000 ft Rate of climb 136 7 m s 26 910 ft min Wing loading 76 09 kg m2 15 58 lb sq ft citation needed Thrust weight 0 71 Take off speed internal fuel 330 340 km h 210 210 mph 180 180 kn Take off speed with external fuel 360 380 km h 220 240 mph 190 210 kn Landing speed internal fuel 280 290 km h 170 180 mph 150 160 kn Landing roll 1 000 1 200 m 3 300 3 900 ft Armament Missiles 2 K 8 air to air missilesSee also Edit Aviation portalRelated development Sukhoi Su 7 Sukhoi Su 9 Sukhoi Su 15Aircraft of comparable role configuration and era Lockheed F 104 Starfighter Mikoyan Gurevich MiG 21References Edit Antonov Vladimir Gordon Yefim Gordyukov Nikolai Yakovlev Vladimir Zenkin Vyacheslav Carruth Lenox Miller Jay 1996 OKB Sukhoi a history of the design bureau and its aircraft 1st ed Earl Shilton Midland Publishing ISBN 9781857800128 External links Edit Wikimedia Commons has media related to Sukhoi Su 11 SU 11 Military Factory Su 9 11 FISHPOT Global Security Airwar ru RUS Retrieved from https en wikipedia org w index php title Sukhoi Su 11 amp oldid 1133093048, wikipedia, wiki, book, books, library,
