Variants List of Mikoyan-Gurevich MiG-21 variants

1 variants

1.1 development , preproduction - generation 0 (1954–1956)
1.2 initial mass production - generation 1 (1957–1961)
1.3 interceptors - generation 2 (1961–1966)
1.4 modernisation - generation 3 (1968–1972)
1.5 trainer variants (1960–1968+)
1.6 upgrade programmes
1.7 foreign-built variants

variants

all information in section adapted mig-21 (2008).

development , preproduction - generation 0 (1954–1956)

ye-1 (1954)
preliminary swept-wing design around mikulin am-5a non-reheated turbojet. instead of building it, design reworked ye-2.
ye-2 (1954; nato: faceplate )
swept-wing prototype mikulin am-9b reheated turbojet, armed 3 nr-30 cannon, , carry 1 ub-16-57 rocket pod. fitted rsiu-4 vhf radio, uzel iff interrogator, ark-5 amur automatic direction finder rup landing approach computer, mrp-48p dyatel marker beacon receiver, sro-2 khrom iff transponder, sirena-2 rwr, srd-1m radal -m radar rangefinder linked asp-5n computing gunsight. ye-2 made maiden flight on 14 february 1955, programme abandoned when mikulin rd-11 turbojet became available.
ye-2a (1955; aka mig-23 )
ye-2 design modified rd-11 turbojet. 6 built. identical ye-5 except wings: ye-2a had swept wings. fitted rsiu-4v radio, ark-5 adf rup module, mrp-48p marker beacon receiver, bariy-m iff transponder, sirena-2 rwr, srd-1m radal -m radar rangefinder asp-5n-v3 computing gunsight.




mig-23 (1957; izdeliye 63)
ye-2a assigned production designation mig-23. prototype, srd-5m baza-6 radar rangefinder , sro-2 khrom iff transponder, amongst other changes. of twelve units planned 1957, 5 built; these powered r11-300 turbojets (production version of rd-11) , had 1 (centreline) hardpoint carry 400-litre drop tank, ub-16-57 rocket pod or fab-250 bomb. work on aircraft ordered terminated in 1958, , units built reused various special test programmes.




ye-4 (1955)
the first delta wing prototype of mig-21. proof-of-concept testbed: used existing production engine in ye-5 airframe.
ye-50 (1956)
swept-wing, experimental high-altitude interceptor. ye-2 airframe modified fit dushkin s-155 rocket motor. design work started in 1954, first flight in 1956. programme terminated after crash of ye-50/3 on 8 august 1957.
ye-50a (1956)
not confused mig-23 flogger. ye-50a refinement of ye-50; enter production , service designation mig-23u, didn t happen due unavailability of intended r11e-300 turbojet.




mig-23u (1956; izdeliye 64)
u = uskoritel ( booster )
this production version of ye-50a. 1 completed due continuing unavailability of r11e-300 powerplant.




ye-5 (1956)
delta wing research prototype powered mikulin am-11 turbojet. changes besides engine made ye-4, including addition of second hydraulic system. initial designation i-500.
mig-21 (1956; izdeliye 65; nato fishbed-a )
the first series of fighters, production version of ye-5. 5 units built @ tbilisi, not continued due efforts having been redirected towards more advanced ye-6/mig-21f. aircraft built found work testbeds.

initial mass production - generation 1 (1957–1961)

ye-6 (1957)
three pre-production versions of mig-21f.
ye-50p (1958)
rocket-boosted high-altitude interceptor project, terminated before construction.
mig-21f (1959; izdeliye 72; nato fishbed-b )


mig-21f-13 @ barksdale global power museum



f = forsirovannyy ( uprated )
single-seat day fighter aircraft. first production aircraft, 93 machines being made (20 in 1959, 73 in 1960). mig-21f carried 2160 liters of fuel in 6 internal fuel tanks , powered r11f-300 turbojet engine 5740kgf of thrust. earliest units fitted 1 nr-30 , 2 nr-23 cannon, subsequent aircraft armed 2 30-mm nr-30 cannons 60 shells each, capable of carrying 2 bombs ranging 50 500 kg each. avionics included pus-36d weapons sequencing module, r-800 communications radio, asp-5nv-u1 computing gunsight, , srd-5mn baza-6 radar rangefinder.




ye-6/9 (1960)
a production mig-21f modified in 1960 test nuclear strike capability on mig-21 airframe.




ye-6t (1958)
prototypes based on mig-21f used testing vympel k-13 (nato: aa-2 atoll ) missile system. aircraft later reused other tests.




ye-6t/1 ( ye-66 ) (1959)
ye-6t/1 prototype, number 31 red, refitted r11f2-300 engine break world speed record. ye-66 fake designation used on documents submitted fai; not official designation. konstantin kokkinaki set new world speed record on september 16, 1960 in aircraft, reaching top speed of 2499 km/h (1552 mph) on 100 km closed course.
ye-6t/1 ( ye-66a ) (1961)
after setting new world speed record, ye-6t/1 31 red rebuilt again try set new world altitude record. end had u-21 rocket booster added fairing in tail, , kept upgraded r11f2-300 turbojet. ye-66a fake designation used on documents submitted fai; not official designation. on april 28, 1961, georgi mosolov set new altitude record @ 34,714 m (113,891 ft), breaking previous record set american pilot in f-104 starfighter 2899 m (9511 ft).
ye-6t/2 (1961)
second prototype ye-6t reused test skid-type landing gear use on dirt strips.
ye-6t/3 (1961)
ye-6t canards fitted, tested 1961-1962.




mig-21p-13 (aka ye-7) (1958)
p = perekhvatchik ( interceptor )
13 = refers k-13 missile system
two mig-21 sans suffixe (izdeliye 65) converted use k-13 missile system part of development project interceptor armed k-13 missile. due mig-21p-13 project lagging behind schedule, decided produce existing mig-21f capability use k-13 missile system, resulting in mig-21f-13. development continued, however, resulting in mig-21pf.
mig-21f-13 (1960; izdeliye 74; nato fishbed-c )


mig 21-f13



f = forsirovannyy ( uprated )
13 = refers k-13 missile system
short-range day fighter; mig-21f-13 first mig-21 model produced in large numbers. unlike mig-21f, mig-21f-13 had 1 nr-30 cannon on starboard side, 30 rounds; however, added capability use k-13 missile system, of 2 carried on underwing hardpoints. on early-production mig-21f-13s launch rails of apu-28 type; later models had these replaced apu-13 rails. launch rails removable, allowing mig-21f-13 carry 2 ub-16-57 unguided rocket launchers, 2 s-24 rockets on pu-12-40 launch rails or 2 fab-100/250/500 bombs or zb-360 napalm tanks. f-13 had further upgrades: improved asp-5nd optical gunsight , upgraded srd-5nd ranging radar. mig-21f-13 built under licence in china chengdu j-7 or f-7 export, in czechoslovakia aero s-106, though s-106 designation not used long; subsequently, czech-built units referred mig-21f-13 soviet-built aircraft.




mig-21fr
czechoslovak designation mig-21f , aero s.106 (czech-built mig-21f) converted carry reconnaissance pods.
mig-21f-13r (1974)
r = razuznavatelen ( reconnaissance )
bulgarian designation mig-21f-13 aircraft locally modified carry afa-39 camera.




ye-6v (1961; nato fishbed-e )
experimental stol version of mig-21f-13 jato boosters.

interceptors - generation 2 (1961–1966)

mig-21pf (1961; izdeliye 76; nato fishbed-d )
p = perekhvatchik ( interceptor )
f = forsirovannyy ( uprated )
production version of all-weather interceptor. these powered r11f2-300 turbojet and, starting seventh production batch, fitted rp-21 radar (the first 6 batches used older tsd-30t radar (aka rp-9-21). further, weapons control system modified of f-13 allow use of rs-2us (aka k-5ms) beam-riding aam in addition ir-seeking k-13.




mig-21pf (1961; izdeliye 76a)




mig 21 pf





version export warsaw pact countries; difference domestic version iff equipment.
mig-21pfl (1966; izdeliye 76a)
l = lokator ( radar )
version of mig-21pf tailored vietnamese requirement. l designation may short lokator reflect different sensor suite in version compared standard pf.
mig-21pfm (izdeliye 76a)
m = modifiziert ( modernised )
not confused real mig-21pfm izdeliye 94. east german designation mig-21pf aircraft upgraded rp-21 radars.
mig-21rfm (izdeliye 76a)
r = lokator ( radar )
f = forsaj ( reheat )
m = modernizat ( modernised )
romanian designation mig-21pf.
mig-21ye
remote-controlled drones converted mig-21pf; designated m-21 (m = mishen , target ).




mig-21fl (1965; izdeliye 77)
f = forsazh ( reheat )
l = lokator ( radar )
export (third world) model of mig-21pf. downgraded baseline mig-21pf older , less powerful r11f-300 engine, no provision carrying rs-2us beam-riding missiles , simplified, downgraded version of rp-21 radar, designated r1l. wide-chord fin , brake chute fairing @ base. built under license in india type 77.
ye-7sps (1961)
sps = sduv pogranichnovo sloya ( boundary layer blowing )
testbed develop flap-blowing system, rebuilt ye-6v/2.
mig-21pfs (1963; izdeliye 94; nato fishbed-d/f )
p = perekhvatchik ( interceptor )
f = forsirovannyy ( uprated )
s = sduv pogranichnovo sloya ( boundary layer blowing )
production version of ye-7sps.




mig-21pfs (izdeliye 94; nato fishbed-d )
the first 9 production batches of mig-21pfs externally identical mig-21pf blown flaps , brake chute fairing @ fin s base.
mig-21pfs (izdeliye 94; nato fishbed-f )
from batch 10 batch 19, large-chord vertical stabiliser first seen on mig-21fl introduced, aircraft retained sk ejection seat , one-piece, forward-opening canopy of mig-21pf.
mig-21pfs (izdeliye 94; nato fishbed-f )
from c/n 941314 onwards, mig-21pfs aircraft had wide-chord tail, km-1 ejection seat , two-piece, sidewards-opening canopy.




ye-7m
further development of ye-7sps; prototype mig-21pfm.


mig-21pfm (izd. 94a), polish air force, markings of 10th fighter regt.



mig-21pfm (1964; izdeliye 94; nato fishbed-f )
p = perekhvatchik ( interceptor )
f = forsirovannyy ( uprated )
m = modernizirovannyy ( modernised )
the production version of ye-7m modernised mig-21pf, upgraded rp-21m radar, srzo-2 khrom-nikkel iff transponder , other changes in avionics. further, later-production pfms reintroduced cannon armament, in form of capability carry gsh-23 cannon , 200 rounds in underbelly pod. following tests in 1966, mig-21pfm aircraft built after 1968 carry kh-66 air-to-surface missile.




mig-21pfm (1964; izdeliye 94a; nato fishbed-f )
export version different iff system , no capacity carry s-24 rockets or zb-62 napalm tanks.
mig-21pfm (izdeliye 94n; nato fishbed-f )
nuclear-capable version of mig-21pfm.
mig-21pfma (izdeliye 94a)
polish designation of standard mig-21pfm.
mig-21pfmn (izdeliye 94n)
polish designation of nuclear-capable mig-21pfm.
mig-21rfmm (izdeliye 94a)
r = radar
f = forsaj ( reheat )
m = modernizat ( modernised )
romanian designation mig-21pfm.




mig-21 sps





mig-21sps (izdeliye 94a; nato fishbed-f )
sps = sduv pogranichnovo sloya ( boundary layer blowing )
to avoid confusion local mig-21pfm designation given modified mig-21pf (izdeliye 76a), east german air force redesignated real mig-21pfm of izdeliye 94a mig-21sps.
mig-21sps-k (izdeliye 94a; nato fishbed-f )
k = kanone ( cannon )
east german designation mig-21pfm (izd. 94a) aircraft wired using cannon pods.




ye-7r
prototypes of mig-21r combat-capable reconnaissance aircraft derived mig-21pfs.
mig-21r (1965; izdeliye 03/94r; nato fishbed-h )
initially designated izdeliye 03 confuse outsiders, mig-21r s official type designation izdeliye 94r. first production unit rolled out in 1966 , production continued until 1971. recce missions, mig-21r carry type d daylight photint pod, type n nighttime photint pod, type r general-purpose elint pod or type t pod housing tv system, making mig-21r 1 of first soviet recce aircraft make use of elint equipment. small changes made throughout production run. early-production units had r11f2s-300 turbojet, replaced in later machines r13-300 powerplant. in air-to-air role, mig-21r carry 2 rs-2us or r-3s aams, , in strike role loaded 2 ub-16-57um or ub-32 rocket pods, 2 s-24 heavy unguided rockets or 2 bombs of 500kg weight (each).




mig-21r (izdeliye 94ra; nato fishbed-h )
export version of mig-21r, delivered type d , type r pods.
mig-21rf (izdeliye 94ra; nato fishbed-h )
egyptian designation mig-21r aircraft had been locally modified permanently mounting cameras in fairing under nose.
mig-21rf (izdeliye 96r; nato fishbed-h )
not confused egyptian local designation mig-21rf. designation used after mig-21rs upgraded r13-300 engines in mig-21mf.




ye-7s (1963)
tactical fighter prototype - production mig-21pf converted avionics testbed test sapfir-21 fire-control radar.
mig-21s (1964; izdeliye 95; nato fishbed-j )
s = sapfir (referring sapfir-21/rp-22 radar).
the production version of ye-7s. fitted rp-22 radar (production version of sapfir-21 radar) working asp-pf-21 computing gunsight. airframe different of mig-21pfm using same saddle tank in mig-21r. mig-21s had r11f2s-300 powerplant , ap-155 autopilot featuring panic button autorecovery system. mig-21s carry gp-9 cannon pod. had 4 underwing hardpoints, 2 outboard pods being wet , is, carry drop tanks. carry weapons mig-21pfm could, addition of r-3r (k-13r) missile, semi-active radar homing variant of k-13. mig-21s produced 1965 1968 , delivered soviet air force.
mig-21n (1965; izdeliye 95n; nato fishbed-j )
n = nositel ( carrier )
also known mig-21sn, variation of mig-21s capable of delivering 1 rn-25 tactical nuclear weapon.
mig-21pd (1966; izdeliye 23-31/92)
pd = podyomniye dvigateli ( lifting engines )
stol technology demonstrator built out of mig-21pfm airframe.

modernisation - generation 3 (1968–1972)

mig 21 fishbed h/j



mig-21m (1968; izdeliye 96; nato fishbed-j )
m = modernizirovannyy ( modernised )
export variant of mig-21s 2 major differences: rp-22 radar of mig-21s substituted older rp-21ma radar, , featured built-in gsh-23l cannon instead of cannon pod. in air-to-air role carry r-3s ir-seeking aam on 4 pylons, sarh variant, r-3r, not cleared export. type licence-built in india, first indian-built example being delivered in february 1973.




mig-21m (izdeliye 96a, nato fishbed-j )
export variant warsaw pact countries.
mig-21ma (izdeliye 96a, nato fishbed-j )
the czechoslovak air force redesignated mig-21ms had been re-engined tumanskiy r13-300 engine mig-21ma, keeping rp-21ma radar. of these later re-equipped rp-22 radar - bringing mig-21mf standard - , redesignated mig-21mf.




mig-21i (1968; izdeliye 21-11; analog )
i = imitator ( simulator )
testbed wing design of tu-144 (nato charger ) supersonic transport.
mig-21k (1969; proposal)
this proposed variant of mig-21 dedicated ground attack role; mikoyan proposal withdrawn before phase 2 of competition, won su-25.
mig-21sh (1969; izdeliye 21-32 ; project)
sh = shturmovik
this ground-attack project fusion of mig-21 , mig-27; referred alternatively mig-21sh , mig-27sh. cancelled due mig-23/27 offering higher performance.
mig-21sm (1969; izdeliye 15/95m; nato fishbed-j )
s = sapfir (referring sapfir-21/rp-22 radar).
m = modernizirovannyy ( modernised )
upgrade of mig-21s using r13-300 engine , built-in gsh-23l cannon, considerably updated avionics package.


mig-21mf, polish air force, markings of 3rd tactical sqn.



mig-21mf (1970; izdeliye 96f; nato fishbed-j )
m = modernizirovannyy ( modernised )
f = forsirovannyy ( uprated [engine] )
export version of mig-21sm, rp-22 radar , r13-300 turbojet. choice of weapons loads increased addition of r-60 (nato: aa-8 aphid ) , later r-60m ir-seeking aam. these licence-built in india hal type 88.




mig-21mfr (1995)
r = razuznavatelen ( reconnaissance )
bulgarian local designation mig-21mf modified carry recce pods after retirement of mig-21f-13r.
mig-21mf-75
unofficial designation used in bulgaria, east germany, romania , czechoslovakia refer mig-21mf aircraft delivered cockpit instrumentation identical in mig-21bis (the 75 refers 1975 , year in these entered production.)
mig-21mfn
czech air force designation mig-21mf upgraded nato standard avionics.




mig-21df (1969)
d = dal nomer ( rangefinder )
f = forsirovannyy ( uprated )
a production mig-21 (s or sm) refitted r13f2-300 engine , kvant radar rangefinder test purposes. though testing revealed improvement in manoeuvrability, variant not put production.
mig-21smf (1970)
s = sapfir (referring sapfir-21/rp-22 radar).
m = modernizirovannyy ( modernised )
f = forsirovannyy ( uprated [engine] )
a testbed aircraft - stock mig-21sm refitted uprated r13f2-300 turbojet. though prototype have been new model, never entered production.
mig-21mt (1971; izdeliye 96t; nato fishbed-j )
m = modernizirovannyy ( modernised )
t = toplivo ( fuel, referring increased fuel capacity)
this mig-21mf increased fuel capacity. though designed export, 15 built , none exported.


mig-21smt of former soviet air force.



mig-21smt (1971; izdeliye 50; nato fishbed-k )
s = sapfir (referring sapfir-21/rp-22 radar).
m = modernizirovannyy ( modernised )
t = toplivo ( fuel, referring increased fuel capacity)
a development of mig-21sm increased fuel capacity. variant spotted larger spine.
mig-21st (izdeliye 50)
s = sapfir (referring sapfir-21/rp-22 radar).
t = toplivo ( fuel, referring increased fuel capacity)
due extreme unpopularity of mig-21smt amongst soviet pilots, rebuilt smaller saddle tank of mig-21bis after type entered production in 1972. following conversion, redesignated mig-21st , externally indistinguishable mig-21bis.
mig-21bis (1972; izdeliye 75; nato fishbed-l/n
the ultimate development of mig-21, fitted tumanskiy r25-300 turbojet engine , great number of other advances on previous types. mig-21bis soviet pvo (air defence force) equipped lazur gci system (nato: fishbed-l ), while soviet air force fitted polyot ils system (nato: fishbed-n ).


mig 21fishbed l/n





mig-21bis (izdeliye 75a; nato fishbed-l )
lazur-equipped version different avionics package exported warsaw pact countries. in bulgaria , east germany these designated mig-21bis-lazur.
mig-21bis (izdeliye 75b; nato fishbed-n )
polyot-equipped version different avionics package exported warsaw pact countries. in bulgaria , east germany these designated mig-21bis-sau (sau referring sistema avtomaticheskovo upravleniya = automatic control system ). variant manufactured under licence hal in india 1980 1987.
mig-21bis/t
t = tiedusteluversio ( reconnaissance version )
finnish designation mig-21bis modified carry reconnaissance pods.



trainer variants (1960–1968+)

ye-6u (1960)
trainer prototype based on ye-6t.




ye-33 (1965)
a ye-6u prototype used 2 women, n. a. prokhanova , lydia zaitseva set back-to-back altitude records. prokhanova set record of 24,336 m (79,842 ft) - highest woman had ever gone - on may 22, 1965, , month later, zaitseva set altitude record sustained level flight, @ 19,020 m (62,401 ft).




mig-21u (1961; izdeliye 66-400; nato mongol-a )
u = uchebnyy ( training )
two-seat training version of mig-21f-13.




mig-21u-400
east german designation mig-21u aircraft of izdeliye 66-400.




mig-21ur (1961; project)
u = uchebnyy ( training )
r = razvedchik ( reconnaissance )
this unrealised project based on ye-6u in rear cockpit transformed extensive camera bay.
mig-21u (1965; izdeliye 66-600; nato mongol-b )
essentially same 66-400, wide-chord vertical stabiliser on mig-21pfm.




mig-21u-600
east german designation mig-21u aircraft of izdeliye 66-600.




mig-21us (1966; izdeliye 68; nato mongol-b )
u = uchebnyy ( training )
s = sduv [pogranichnovo sloya] ( [boundary layer] blowing )
two-seat training version; upgrade of mig-21u 66-400 blown flaps.




mig-21us (1966; izdeliye 68a; nato mongol-b )
export version of mig-21us modified avionics.




mig-21um (1968; izdeliye 69; nato mongol-b )
u = uchebnyy ( training )
m = modernizovannyy ( modernised )
two-seat training version of mig-21mf. type 69 indian air force designation.

upgrade programmes

mig-21-93
russia offers upgrade package bring late-model mig-21s mig-21-93 standard. package provides upgrade of avionics suite includes installation of kopyo pulse-doppler radar, smaller version of n010 zhuk airborne radar used mig-29, enables aircraft fire greater range of modern weapons such beyond-visual-range vympel r-77 air-to-air missile. upgraded avionics enhance aircraft s survivability ability engage enemy fighters. other upgrade features include installation of dual-screen hud, helmet-mounted target designator , advanced flight control systems.


mig-21 2000



mig-21-2000
single-seat 21st century version export buyers. made israel aerospace industries.
mig-21 lancer


romanian air force mig-21 lancer b



upgraded version romanian air force done elbit systems of israel , aerostar sa of romania, in 1995-2002. lancer version optimized ground attack being able deliver precision guided munitions of eastern , western origin r-60, r-73 , python iii air-to-air missiles. lancer b version trainer version, , lancer c version air superiority version featuring 2 lcd mfds, helmet mounted sight , elta el/m-2032 air combat radar.


croatian air force mig-21 bis-d



mig-21bis-d (d = dorađen ( upgraded ))
upgraded in 2003, aerostar sa, croatian air force elements of lancer standard. modernized nato interoperability including honeywell ils (vor/ils , dme), gps receiver, new iff system , communications equipment rockwell collins.
mig-21umd (d = dorađen)
croatian designation 4 mig-21um upgraded nato interoperability, mig-21bis-d.


iaf mig-21 bison



mig-21 bison
upgraded version export, indian air force being first customer. equipped phazotron kopyo (spear) airborne radar, capable of simultaneously tracking 8 targets , engaging 2 of them semi-active radar homing air-to-air missiles, such vympel r-27. radar enables fighter deploy active radar homing air-to-air missiles such vympel r-77 when additional channel incorporated. russia has claimed version equivalent f-16. indian air force has since upgraded avionics addition of helmet mounted sight (hms), ability fire high off-boresight missiles r-73 (missile) , tactical data link, improving further formidable wvr combat capability, , has performed against f-15c eagles in cope india , red flag exercises.
mig-21-97
mig-21-93 upgrade. mig-21-93 re-engined klimov rd-33 engine. russians have claimed evaluation @ ramenskoye airport had shown version has beaten simulated f-16 in mock dogfight score of 4:1.

foreign-built variants

china (prc)

chinese-built variants of mig-21 designated chengdu j-7 , f-7 (for export). initial version of j-7 copy of mig-21 variant, namely mig-21f-13. though agreement had been reached between china , ussr licence production of mig-21 in china, political relations soured between 2 countries, causing soviet assistance stop. chinese reverse-engineered parts of handful of mig-21f-13s supplied ussr, in order make blueprints , documentation had not yet been shipped on ussr @ time of political rift. subsequent development of j-7 indigenous china , different soviet-made versions. guizhou jl-9 trainer, first flown in 2003, based on mig-21 airframe.

czechoslovakia

between 1962 , 1972 mig-21f-13 version manufactured under license aero vodochody, in czechoslovakia. aero vodochody (then středočeské strojírny, n.p.), built total of 194 planes during period, under cover designation article z-159. followed mig-15 , mig-19s built in vodochody factory fifties sixties. sole locally built version of mig-21f-13 differed externally soviet-built examples solid dural sheet fairing behind cockpit canopy, opposed transparent 1 on original soviet migs. these machines built czechoslovak air force , export. r13-300 engines imported soviet union.

india


mig 21 type 77 of indian air force landing.

the production of mig-21s in india under license hindustan aeronautics in nasik started mig-21fl in 1966 in 4 phases starting assembly of ckd kits, moving on subassemblies, parts, , advancing production scratch. 205 mig-21fls, designated type 77 , nicknamed trishul ( trident), built in india between 1966 , 1972; first 1 built entirely indian-made components delivered iaf on 19 october 1970, first indian-made r11f2s-300 powerplant leaving assembly line on 2 january 1969. in 1971 hal production switched improved version of mig-21m (izdeliye 96), designated type 88 hal; variant produced exclusively in india, no izdeliye designation applicable. first type 88 mig-21m delivered iaf on 14 february 1973 , last on 12 november 1981, total of 158 built. last variant produced hal mig-21bis. total of 75 built in 1977 ckd kits, , further 220 built scratch 1984. despite series of crashes during 1990s, indian air force has decided upgrade 125 of mig-21bis in inventory mig-21 bison standard. can serve until 2025. original mig-21 fl (mig-21 pf or type 77) retired in december 2013; remaining mig-21m aircraft (type 88) scheduled retired 2015.