Jet engines used in Swedish military aircraft

The designation RM stands for reaktionsmotor (reaction engine), usually written and spoken as reamotor. Later usage is to call them jetmotor (jet engine).

EBK stands for efterbrännkammare (after burning chamber).

Designation Manufacturer Type           Year  Serial  No. Thrust/w.  Used in
                                              nr          afterburner

RM 1      de Havilland  DH Goblin II                      2966 lb    A 21RA,
          Engine Company Ltd (DHEC)                                  J 28A Vampire

RM 1A     Svenska       DH Goblin III         4001-       3300 lb    A 21RB,
       Flygmotor AB (SFA)                     4440                   J 28B,C Vampire

          DHEC          DH Ghost 45           2019-   4              Prototype
                                              2022                   Saab 29

          DHEC          DH Ghost 50           2041-   4              Prototype
                                              2044                   Saab 29

RM 2      SFA           (DH Ghost 50)         5001-  789  2270 kp    Saab J 29
                                              5800    ?              A,B,E, S 29C,E

RM 2A     SFA           (DH Ghost 50)         5901-   77  2270 kp    J 33 Venom
                                              5970

RM 2B EBK SFA           (DH Ghost 50)        rebuilt 390  2160/      J 29D,F
                                             RM 2         2770 kp

RM 3A  Rolls Royce   RR Avon Mk 101C (RA 3) 1959-74                  Tp 52 Canberra

Svenska Turbinfabriks Aktiebolagen Ljungström (STAL)

          STAL          Skuten          1948          1   1450 kp   Technology
                        Axial flow 8+1, 6 combustors                demonstrator
                        

RM 4      STAL          Dovern          1951-52      16   3300 kp   Intended for
           Axial flow 9+1,                                   Lansen, flight tested
           8 combustors Afterburner developed                on Tp 80 Lancaster

          STAL          Glan                          -   5000/      Intended for
                        Axial flow 9/7+1/2                7580 kp      Draken

RM 5A, Rolls Royce Avon Mk 21

          Rolls Royce   Avon RA 2       1951-         3     One installed in
          (RR)                                              Saab 32 Lansen prototype

          RR            Avon RA 7             3040-   2     Test and prototype
                                              3041          Saab 32 Lansen

RM 5      RR            Avon RA 7R            3042-   5   3400 kp   Test and
                                           3045,3051       prototype Saab 32 Lansen

RM 5A     RR            Avon Mk 21            3089-   20  3460 kp   A 32A
                        12+2                  3098

RM 5A     RR            Avon Mk 21A           3160-   30  3460 kp   A 32A
                                              3189

RM 5A1    SFA           Avon Mk 21      1955- "6001-      3460/444  A 32A
EBK 52,53                                     6350"       5 kp

RM 5A2    SFA           Avon Mk 21A           "6001-      3460/470  A 32A, S 32C
EBK 54,55                                     6350"       0 kp

EBK 52 and 53 = SFA built RR JP21A, 53 angled upwards. EBK 54 and 55 =
SFA built RR JP21B, 55 angled upwards.
At first the first Mk 21s (with a smaller diameter afterburner) were
designated RM 5A1, Swedish built Mk 21s RM 5A2 and Mk 21As RM 5A3.
Later  all Mk 21s became RM 5A1 adn Mk 21As RM 5A2.
50 Mk 21/21As were built by Rolls Royce, 350 by SFA.
One SFA-built RM 5A without afterburner used in the first Draken
prototype.

RM 5B, RR Avon 115

RM 5B     RR            Avon Mk 23                        3617 or J 34 Hawker Hunter
                                                          3519 kp
RM 5B2    RR            Avon Mk 24                                J 34mod
RM 5B3    RR            Avon Mk 25                                J 34mod

RM 6 RR Avon 200

          RR            Avon Mk 43         3087,3088,  6         Prototype Lansen
                        15+2 8          3147,3451-3453           and Draken
                        combustors            
                                              
          RR            Avon Mk 46         3148,3149,  3             
                                           3497
                                              
RM 6AE    RR            Avon Mk 47A     1956-         39  4880/     J 32B Lansen
EBK 61                                                    6500 kp

RM 6AS    SFA           Avon Mk 47A           7001-   104 4880/     J 32B
EBK 61                                        7104        6500 kp

          RR            Avon Mk 48            3458-   3             Provfpl 35
                    later  mod to Mk 48A      3460

RM 6A had an afterburner designed in Sweden.

RM 6BE    RR            RR Avon Mk 48A  1958- 3499    16  4750/     J 35A,B Draken
EBK 65,66               15+2 8 combustors                 6340 kp   Sk 35C 
                        
RM 6BS    SFA/Volvo     Avon Mk 48A     1958- 8001-   186 4750/     J 35A,B, Sk
EBK 65,66 Flygmotor AB (VFA)                  8186        6340 kp   35C Draken

The RM 6BE and RM 6BS were fully interchangable.
EBK 65 was used in J 35A with short tailcone and Sk 35C, EBK 66 in J
35A with long tailcone and J 35B.

RM 6C, RR Avon 300

RM 6C     VFA           Avon Mk 60            8401-   445 5650/7755 J 35D,F,J, S
EBK 67                  16+2                  8845        kp        35E Draken,
                                                                    export Drakens
                                                                    
RM 6C was initially to be designated RM 7.

RM 7      Bristol       Olympus 22R         Intended for Viggen during development

RM 8A     VFA           (P&W JT 8D)     1967- 9001-       6690/   AJ,SH,SF,SK 37 Viggen
EBK                     2/4/7+1/3             9207       11790 kp    Ground idle 330 kp, flight idle 1460 kp

RM 8B     VFA           (P&W JT 8D)     1979- 9401-   +4  7415/   JA 37 Viggen
EBK                     3/3/7+1/3             9573       13125 kp    Ground idle 325 kp, flight idle 1580 kp
   Differences from RM 8A: Fan, LP compressor, combustion chambers, HP turbine, afterburner
   Weight 2230 kg, length 5.9 m
   Max fuel consumption 78 kg/min dry, 545 kg/min with afterburner.

The afterburner for RM 8A and RM 8B wholly designed in Sweden

RM 9A     Turbomeca     Aubisque        1963-            ~700 kp  SK 60A,B,C,D,E
RM 9B     Turbomeca     Aubisque                          742 kp  SK 60A,B,C,D,E
                                                     All RM 9A modified into RM 9B

RM 10     RR            Avon Mk 527B    1971- 97?                 TP 85 Caravelle

RM 11     Pratt &       JT 12A-8        1981-             13.3 kN TP 86 Sabreliner
          Whitney                                                 

RM 12 EBK Volvo Aero    (modified GE    1988- 12101-              JAS 39 Gripen
  Corporation (VAC)     F404J)
  Weight 1050 kg, length 4.0 m.
  Max fuel consumption 77 kg/min dry, 240 kg/min with afterburner.

RM 14     RR            Tay Mk 611-8    1992-             5634 kp TP 102A, S 102B
                                                                  Gulfstream IV

RM 15     Williams      FJ 44-1C        1995-             860 kp  SK 60A,B,C


Military aviation
The major part of this document was compiled by Leif Pettersson, Aug and Sept 1996.
Content last updated 2001 Mar 31, some numbers corrected 2001 May 04 by Urban Fredriksson
griffon@canit.se