MiG-21BIS in Finnish Air Force -- blogipostaus
tiikki:
Nyt olen saanut kirjoitettua alustavan version siitä ja ajattelin että täältä löytyisi siihen kuvitusta (KS ilmailumuseossa ei ole hallissa esillä BIS-versiota).
Lisäksi tekstiin on saattanut tulla virheitä (kuten MiG-21F tekstiin tuli, vielä kerran kiitos korjauksista), eli tässä on teksti:
MiG-21BIS in Finnish Air Force
Receiving the aircraft and avionics modification
The aircraft type was chosen to replace the MiG-21F-13 in the Finnish inventory. The choice was primarily a political one, as the replacement had to be of Soviet manufacture for political reasons. The Soviet Union also offered the MiG-23MS, but it was considered to be too heavy and too expensive. Another possibility would have been the Su-20, but it was an attack aircraft and not suitable for a fighter role. With the operating experience from the Mig-21F-13 in memory, the transition was expected to be an easy one, and that expectation was met.
The first two aircraft were delivered in September 1978 and the balance of the 20 during the summer of 1980. After the first two were received, one was made the prototype for the westernizing of the avionics suite. Practically no item of the original avionics would remain in place. The modification work for the series was initiated in the summer of 1981. Unlike in the case of the MiG-21F-13, all maintenance and repair work was carried out in Finland. Finland purchased 6 additional examples of the type. The first set of three aircraft was received in February 1985 and the second set of three in April 1986.
MGBT recce version
As you remember from MiG-21F-13 article another user of MiGs was Reconnaissance Squadron. As its aircraft were aging the MiG-21BIS was chosen as a replacement and recce version was developed. The recce version was modified to carry improved electronic warfare equipment and electronic warfare pods and camera pod, but lacked radar. In total 6 units were modified.
Units operating with MiG-21BIS
Fighter Squadron 31 of Karelian Air Command
Hävittäjälentolaivue 31 of Karjalan Lennosto
This was the main unit operating with MiG-21BIS from Rissala base. It received one of the initial aircraft in 1978 and operated with it gaining experience. When the main series of aircraft were received 1980 the old F-13 version aircraft were given to Reconnaissance Squadron.
Reconnaissance Squadron
Tiedustelulentolaivue
The unit operated also with recce version of MiG-21F from Luonetjärvi base until 1986. The unit started to receive BIS versions in year 1984 for development of recce version (MGBT). In total 6 aircraft were modified. The prototype was finished 1985, series of 4 aircraft summer 1988 and last February 1989. Operations with MGBT started 1987. The unit was disbanded in 1996 and aircraft were returned to Fighter Squadron 31.
Flight Test Center
Koelentue
This unit had typically single BIS aircraft from the begin (the second aircraft received went to this unit) until autumn 1997. One aircraft was equipped with data gathering and recording system for test flights from February 1988 on.
Removal from active service
Aircraft was replaced by F-18 Hornets starting from 1995 and last flight being
1998.
Technical data
Finnish MiG-21BIS (also MGTB):
Sensors & communication
Western VHF-radio (some sources indicate multispectrum)
Collins VIR-108 VOR/ILS
Collins DME-860E-5 (navigation aid)
RV-UM radar altitude meter
A(LMZ)-23Б / RP-22 (Saphir-21) [Jay Bird] radar (not in MGBT)
ASP-PDF-21 sights
SPO-10 radar warning receiver
OSU (omasuoja / self protect) flare/chaff dispenser on MGBT
TURO radar warning system (ESM most likely) on MGBT
Fuel
Central tank 2305 l, wing tanks 580 l, total 2885 l.
Drop tanks with 490 l (max 3) and 800 l (center line)
Armament
23 mm GSh-23L cannon with 250 rounds
R-3S (K-13A), R-13M, or R-3R missiles (max 4, all available from 1980, no R-3R missiles in MGBT)
R-60 (max 6, dual launcher in outer pylons)
UB-32A and UB-16-57 rocket pods with S-5M or S-5K rockets (2 of each)
S-24 rockets (max 4)
No photographic or textual references to bombs in Finnish use,
but 250 kg and 500 kg bombs could be carried
POD-1 (Vicon 18 camera pod) in center-line (MGBT)
POD-2 (Philips 9CM120X chaff dispencer) in center-line (MGBT)
POD-3 (Selenia SL/ALQ-234 jammer pod) in center-line (MGBT)
Harpoon terms
Performance data can be found from H4.1 and High Tide annexes MiG-21bis
Fishbed N
(I claim that there is an error on these about countermeasures, none of
regular MiG-21 versions had countermeasures installed.)
Differences: MGBT counterm 2nd Gen D, MGBT sensors add 2nd Gen ESM
Ordnance loadouts
Offensive guns: 1 GSh-23L 23mm w/250 rounds
* 4 R-3S [AA-2b Atoll], R-13M [AA-2d Atoll], or R-3R [AA-2c Atoll] (not in MGBT) and 1 PTB-800 drop tank
* 6 R-60 [AA-8 Aphid] and 1 PTB-800 drop tank
* 2 UB-32A rocket pods, 2 UB-15-57 rocket pods, and 1 PTB-800 drop tank
* 2-4 bombs + tanks (no evidence in Finnish use)
* 1 pod (POD-1,-2, or -3), and 2 R-3S, R-13M, or R-60, and 2 490 l drop tanks (MGBT)
* 4 S-24 rocket and PTB-800 drop tank
Pilot quality:
Competent/Experienced
Individual aircraft histories:
MG-111 / MB-111
Arrived 21.9.1978. Cockpit modification 10.1.1985-9.5.1986, under maintenance 15.3-24.5.1991. Last flight 24.8.1993. Original markings MB-111 were changed to MG-111.
MG-114 / MB-114
Arrived 21.9.1978. Prototype for cockpit modifications 2.2.1979-12.3.1982. Under maintenance, and MGBT prototype development 5.8.1985-26.6.1987 and 3.8.-21.12.1987. Under maintenance and MGBT-development 15.10.1990-6.6.1991 Under maintenance December 1992, 3.11.1993-5.1.1994, and 28.5-19.9.1996. Last flight 20.11.1997.
MG-115
Arrived June 1980. Cockpit modification 15.4.1981-24.6.1982. Destroyed 24.8.1984 due to motor failure.
MG-116
Arrived June 1980. Cockpit modification 18.1.1982-4.2.1983. Under maintenance 13.4-3.7.1987, 8.8.1988-7.7.1989, 3.8.-2.12.1992, 30.11.1994-23.2.1995, 2.2.-28.5.1996, and 21.2.-18.4.1997. Last flight 5.1.1998.
MG-117
Arrived June 1980. Cockpit modification 2.8.1982-10.10.1983. Under maintenance 12.10.1989-19.9.1990. Destroyed 5.11.1991, due to landing gear failure.
MG-118
Arrived June 1980. Cockpit modification 13.9.1984-27.8.1985. Under maintenance 6.6.1988-9.6.1989, 1.11.1991-29.1.1992, 28.12.1993-4.3.1994, 21.3.-3.8.1995. Damage repairs 7.8.-18.12.1996. Last flight 2.12.1997.
MG-119
Arrived February 1985. Cockpit modification 14.11.1985-25.6.1986. Camera equipment installation 7.10.-24.11.1986, removal 12-16.1.1987. Under maintenance 5.9.1988-6.4.1989, 30.7.-11.10.1991, 2.9.1993-12.1.1994. Last flight 9.5.1996.
MG-120
Arrived June 1980. Cockpit modification 4.10.1982-28.10.1983. Under maintenance 10.12.1984-22.3.1985. Destroyed 30.9.1986 due to engine failure.
MG-121
Arrived July 1986. Cockpit modification 29.4.1987-13.7.1988. Under maintenance 23.10.1989-14.2.1990, 21.2.-3.6.1992, 23.4.-2.9.1993. Last flight 25.1.1996.
MG-122
Arrived 17.7.1980. Cockpit modification 28.3.1983-27.1.1984. Under maintenance 30.7.1984-3.1.1985, 16.9.1987-25.2.1988, 16.11.1988-2.10.1989, 13.11.-1.12.1989, 13.6.-1.7.1991, 31.3.-3.7.1992, 28.4.-5.7.1994. Destroyed 22.3.1995 due to engine failure.
MG-123
Arrived July 1986. Cockpit modification 30.9.1986-229.4.1987. Under maintenance 8.1990, 4.11.1992-19.5.1993. Last flight 31.8.1995
MG-124
Arrived 17.7.1980. Cockpit modification 12.9.1983-27.6.1984. MGBT modification 13.10.1986-15.5.1988. maintenance 8.1989, 8.1.-18.2.1991, 1.1993, 14.4.-22.6.1993, 9.2.-11.4.1994, 5.10.-9.12.1994. Last flight 11.12.1996.
MG-125
Arrived 17.7.1980. Cockpit modification 19.5.1982-22.6.1983. MGBT modification 11.12.1986-20.5.1988. Under maintenance 7.-28.9.1988, 8.12.1989-23.3.1990, 18.6.-17.9.1991, 9.12.1993-14.2.1994, 6.7.-12.9.1994, 1.2.-12.5.1995. Last flight 29.4.1997.
MG-127
Arrived June 1980. Cockpit modification 23.5.1984-12.3.1985. MGBT modification 9.2.1987-30.6.1988. Under maintenance October 1989, 18.2.-13.5.1991, 28.10.1994-3.1.1995. 8.1.-10.4.1996. Last flight 7.3.1998.
MG-128
Arrived February 1985. Cockpit modification 6.8.1985-24.2.1986. Under maintenance 24.9.-19.11.1990, 31.10.1991-16.6.1992. Lost in bad weather 11.11.1992
MG-129
Arrived 17.7.1980. Cockpit modification 16.11.1981-30.6.1982. Under maintenance 15.8.1984-19.2.1985. MGBT modification 3.8.1987-22.2.1989. Under maintenance 21.2.-18.5.1992, 8.1992, 2.8.-5.10.1994, 20.9.1995-5.1.1996. Last flight 9.2.1998.
MG-130
Arrived 17.7.1980. Cockpit modification 8.1.-22.12.1982. Under maintenance 28.1.-17.5.1985, 18.8.1989-6.7.1990, 4.11.1992-20.1.1993, 3.3.-22.5.1995, 6.8.-5.12.1996. Last flight 7.3.1998.
MG-131
Arrived 17.7.1980. Cockpit modification 14.4.1982-12.4.1983. Installation of test flight recording system 19.9.-7.10.1987. Under maintenance 17.9.-19.12.1991, 13.9.-9.11.1994, 20.11.1995-25.3.1996, 20.1.-2.4.1997. Last flight 12.6.1997.
MG-132
Arrived 10.9.1980. Cockpit modification 1.8.1983-4.10.1984. Under maintenance 15.8.1985-23.1.1987, 12.4.-2.10.1989, 15.8.-19.10.1990, 16.1.-31.3.1992, 10.2.-28.5.1993. Last flight 31.10.1995.
MG-133
Arrived 10.9.1980. Cockpit modification 28.12.1983-11.10.1984. MGBT modification 5.5.1987-20.10.1988. Under maintenance 20.10.-29.12.1989, 2.12.1991-7.2.1992, 11.4.-13.6.1994, 2.8.-8.11.1995. Last flight 10.6.1997
MG-134
Arrived July 1986. Cockpit modification 13.7.1988-31.3.1989. Under maintenance 13.1.-28.4.1993, 21.2.-30.5.1994. Last flight 22.11.1996.
MG-135
Arrived 10.9.1980. Cockpit modification 19.4.1984-4.1.1985. Under maintenance 12.2.1988-16.2.1989, 23.6.-29.10.1993, 5.1.-13.4.1995. Last flight 22.12.1997.
MG-136
Arrived February 1985. Cockpit modification 15.3.1985-10.9.1985. Under maintenance 7.6.-12.10.1988, 12.9.1989-6.2.1990, 8.10.1992-12.1.1993. Last flight 30.6.1994.
MG-138
Arrived 10.9.1980. Cockpit modification 29.3.1983-7.3.1984. Under maintenance 16.4.-5.7.1985, 16.3.-15.7.1988, 2.6.1989-22.5.1990, 23.10.1992-27.1.1993, 11.4.-23.8.1996. Last flight 7.3.1998.
MG-139
Arrived 10.9.1980. Destroyed 11.6.1982.
MG-140
Arrived 10.9.1980. Cockpit modification 22.12.1982-17.2.1984. Under maintenance 26.2-7.6.1985, 9.11.1987-14.2.1988, 20.2.1989-23.2.1990, 9.5.-25.6.1991, 31.8.-9.12.1992, 11.3.-3.6.1996. Last flight 13.6.1997.
Sources:
Harpoon 4.1 Data Annex, Suomen Ilmavoimien lentokoneet 1: MiG-21 in Finnish Air Force by Jyrki Laukkanen, nice people in Finnish aviation forums.
Images: UB-32A rocket pod by Tuomo Kalliokoski CC, taken at Keski-Suomi Aviation Museum, others by ****
edit: korjasin MGBT versiota saamani tiedon mukaiseksi
edit2: R-60 lasti kuntoon
edit3 & 4: Kielenhuolto & S-24 raketit
karivalo:
BISsiin sai kuusi ohjusta, R-60 ohjukselle oli tuplalaukaisukisko, näin koneeseen sai 2 x R-60 samaan ripustimeen.
T: perttu
tiikki:
Quote
BISsiin sai kuusi ohjusta, R-60 ohjukselle oli tuplalaukaisukisko, näin koneeseen sai 2 x R-60 samaan ripustimeen.
T: perttu
Ulompaan siipiripustimeen menee tuplakisko. Ainakin täällä olevan kuvan mukaan http://www.mig-21.de/english/technicaldataarmament.htm ja wiki-artikkelin mukaan. Sen sitä saa kun luottaa vanhaan painettuun sanaan
Kiitoksia, Tuomo
edit: poistin kysymysmerkin ja lisäsin wikin...
tiikki:
Kiitoksia korjauksista ja tarkennuksista. Pistin eteenpäin valitusta siitä, että pelin lähdemateriaalissa on virhe MiG-21:n omasuojassa. Saa nähdä tuleeko korjausta seuraavaan painokseen (joka firman tuntien tullee 10v päästä )
Löytyiskö keneltäkään hienoa kuvaa postaukseen liitettäväksi?
Tuomo
Ilmanmuuta:
Quote
Nyt olen saanut kirjoitettua alustavan version siitä ja ajattelin että täältä löytyisi siihen kuvitusta (KS ilmailumuseossa ei ole hallissa esillä BIS-versiota).
Lisäksi tekstiin on saattanut tulla virheitä (kuten MiG-21F tekstiin tuli, vielä kerran kiitos korjauksista), eli tässä on teksti:
No tempaisin vähän kielenhuollettua englanninkielistä versioa pahimpaan hätään.
The aircraft type was chosen to replace the MiG-21F-13 in the Finnish inventory. The choice was primarily a political one, as the replacement had to be of Soviet manufacture for political reasons. The Soviet Union also offered the MiG-23MS, but it was considered to be too heavy and too expensive. Another possibility would have been the Su-20, but it was an attack aircraft and not suitable for a fighter role. With the operating experience from the Mig-21F-13 in memory, the transition was expected to be an easy one, and that expectation was met.
The first two aircraft were delivered in September 1978 and the balance of the 20 during the summer of 1980. After the first two were received, one was made the prototype for the westernizing of the avionics suite. Practically no item of the original avionics would remain in place. The modification work for the series was initiated in the summer of 1981. Unlike in the case of the MiG-21F-13, all maintenance and repair work was carried out in Finland. Finland purchased 6 additional examples of the type. The first set of three aircraft was received in February 1985 and the second set of three in April 1986.
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