The Soviet S-75 SAM-system

V-750 Dvina/Desna, V-755 Volkhov and V-759 5Ya23

-- The difficult efforts to classify these missiles by photos --

Norbert Brügge, Germany

Update: 05.02.2012
 

SAM (SA-75 precursor)

V-80 (ShB32)

 

The second stage operates with two-component hypergolic fuel, consisting of TG-02 fuel and AK-20F oxidant.The OKB Sevruk type engine S2.168B has produced only 11.5 kN of thrust.

 

 

SAM (SA-75)

V-750 & V-750V (Dvina)
 


Propulsion:
The first stage which was used to accelerate the missile at launch used a Kartukov PRD-18 solid rocket powerplant with 3-5 sec burn duration and 265 to 455 kN of thrust.
The PRD-18 design used 14 tubes of NMF-2 propellant and a variable cross section throat.

The second stage operates with two-component hypergolic fuel, consisting of TG-02 fuel and AK-20K oxidant
OT-155 is the so-called starting-fuel for the second stage engine, used for the missiles V-750 (1D, 11D and 13D). It was located in the section 5 of the tanks. OT-155 (Isopropyl nitrate) generate the pressure gas for the generator. The gas generator promote the turbopump to inject oxidizer and fuel in the combustor with high pressure.
For the missiles V-755 and V-759 (20D and 5V23) this pressure procedure took over a short black pipe between the solid booster and the second stage. About this gas pipe, a small portion of the pressure gas from the booster reached the turbo pump of the engine. After dropping the booster, the pressure gas took over by the second stage engine to drive the turbo pump.
 
 

Second stage engines for Dvina



S2.711



S2.711V



S.2711V ?



S2.711V ?
   


S2.711V1


S2.711V1
System Name Factory code Military code  2th stage engine
 SA-75 Dvina V-750 1D  S2.711
V-750V 11D  S2.711V
11DA  
11DU  
 S-75 Dvina-M V-750VM 11DM  S2.711V1 (?)
 S-75 Desna V-750VN 13D  S2.720 (?)
13DA  
  Volga V-760 15D (nuclear WH)  
 
      SA-75 Dvina (V-750)  >>>>>>>>>>>

       

 
     SA-75 Dvina (V-750V)  >>>>>>>>>>

           

 

V-750V-11DA
V-750V-11DU
 
 
Vietnam
HQ-2
HQ-2
 

HQ-2
HQ-2
HQ-2
Egypt
India
North Korea
Tondor (Iran)

 



Dvina V-750V nozzle



V-750V rear
 

SAM (S-75)

V-750VM (Dvina-M)


 
Dvina V-750VM nozzle

  
System Name Factory code Military code  2th stage engine
 SA-75 Dvina V-750 1D  S2.711
V-750V 11D  S2.711V
11DA  
11DU  
 S-75 Dvina-M V-750VM 11DM  S2.711V1 (?)
 S-75 Desna V-750VN 13D  S2.720 (?)
13DA  
  Volga V-760 15D (nuclear WH)  

 

 

           

V-750VM-11DM
   
 





       HQ-2A   HQ-2A

Vietnam

  Vietnam

 

SAM (S-75)

V-750VN (Desna)



Rear of the second stage (Dvina)

  
System Name Factory code Military code  2th stage engine
 SA-75 Dvina V-750 1D  S2.711
V-750V 11D  S2.711V
11DA  
11DU  
 S-75 Dvina-M V-750VM 11DM  S2.711V1 (?)
 S-75 Desna V-750VN 13D  S2.720 (?)
13DA  
  Volga V-760 15D (nuclear WH)  

 



Desna V-750VN nozzle is differnt to V-750V and V-750VM (Dvina)
 

 

 
 		    
Iran's Tondar
V-750/V755 hybrid
HQ-2B
HQ-2B

 

SAM (S-75M)

V-755 (Volkhov)



 

  
System Name Factory code Military code  2th stage engine
S-75M Volkhov V-755 20D  
20DP  S2.720A2
20DA  
V-755OV 20DO  
V-755U 20DS  
20DSU  
20DU  
S-75M2 5Ya23 V-759 5V23  S2.720M (?)
  Volga-M V-760V 5V29 (nuclear WH)  

 



S2.720A2

S2.720M (?)

 






 
  
 
V-755-20DSU		      


Iraq (engine)
Egypt
Libya



 

SAM (S-75M2)

V-759 (5Ya23)
 
S2.720



S2.720A



S2.720A2

?



S2.720M

V-750VN, V-755 and V-759 second stage engines

 

  
System Name Factory code Military code 2th stage engine
S-75M Volkhov V-755 20D  
20DP  S2.720A2
20DA  
V-755OV 20DO  
V-755U 20DS  
20DSU  
20DU  
S-75M2 5Ya23 V-759 5V23  S2.720M (?)
  Volga-M V-760V 5V29 (nuclear WH)  

 


    

  

         

  

 

 Experimental

Nuclear WH



Experimental supersonic ramjet 17D

 

V-760V with nuclear WH



Experimental supersonic ramjet 22D
V-760 with nuclear WH