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Weapons of Mass Destruction (WMD)

Iranian Shahab-1 / North Korean Scud-B

By © Charles P. Vick, 2005, ALL RIGHTS RESERVED

Feb. 27, 2007

Design Bureau OKB Makayev
Engine OKB Isayev (KBKhM)
Engine Designation 9D21 (R-11-30) Open Cycle, liquid Propellant rocket Engine.
Range (km) 285-330 (300)
Minimum Range (km) 50
CEP (m) 450
CEP (m) for 50 km 180 m in range 100 min azimuth
CEP (m) for 300km) 610 m in range 35 min azimuth
Max. Altitude (km) 24 km (to 50km): 86 km (up to 300km)
Diameter (m) 0.855
Height (m) 11.184 (11.64-11.37 Depending on warhead size)
Span across fins (m) 1.8
Launch Weight - Mass (kg) 5,862-5,950
Body Material Duplex low grade Stainless steel 1.9 mm thick
Stage Mass (kg) 4,846 -4,873 – 4,877
Dry Weight Mass (kg) 1,100-1,110 minus Warhead (1,060 – 1,091 – 1,187 Actual figures)
Mass with Warhead (kg) 2,076
Flight Avionics Mass (kg) 180
Guidance Strap-down inertial
Thrust (kg f) 13,160 Effective 13,300-13,380 Actual
Thrust/Weight=gee's 2.2-2.3
Steering Rotating vanes in the exhaust gas jet. (-4 to -5 sec Isp. loss)
Engine Mass (kg) 120
Thrust Chambers 1
Stages 1
Burn Time (sec) 62-64-(65)
Flight Time (sec.) 165 for 50 km; 313 for 300 km
Isp. (sec.) 226 Effective at SL Due to steering vanes loss of 4-5 seconds Isp.
Isp. (sec.) Actual 230
Isp. (sec) Vac. 264
Max Velocity (m/sec.) 1,500
Velocity at Apogee (m/sec.) 1,130
Velocity of Impact (m/sec.) 800
Launch Preparation (min.) 90
Fuel TM-185 20% Gasoline 80% Kerosene
Fuel Mass (kg) 852
Oxidizer AK-27I
27% N204 (Nitrogen Tetroxide)
70% HN03 (IHN03) Nitric Acid wit Iodium Inhibitor
Oxidizer Mass (kg) 2,919
Propellant mass (kg) 3,771-3,760 (gross)
Warhead (kg) 987 – 1,000
HE Nuclear Warhead (kg) 1,016
Chemical Warhead (kg) 985
HE – Frag Warhead (kg) 989


SL - Sea Level, Vac. Vacuum, Isp. Specific Impulse 1. Based on Russian Scud-B users manuals data.


The opinions and evaluations stated here in are only the authors and cannot be construed to reflect those of any Government agency, company, institute or association. It is based on public information, circumstantial evidence, informed speculation, declassified U.S. intelligence community documents, official Iranian, Pakistani and North Korean government documents and histories, oral histories, interviews and engineering analysis. As with all data regarding the Iranian, Pakistani and North Korean strategic space and ballistic missile programs, this analysis is subject to revision--and represents a work in progress.

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