What is source for these numbers of MIRVs in Chinese missiles?
1. DF-5B. Richard Fisher. Also, technical drawing from Beijing Institute.
2. DF-31A. Jane's.
3. DF-41. Pentagon.
4. JL-2. Jane's.
5. JL-3. Navalized DF-41 has assumed same number of MIRVs as DF-41.
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Three citations for China's five-megaton thermonuclear warhead on DF-5 ICBM
Math: Five-megaton warhead on DF-5 ICBM x 3.3 (multiplier effect for hafnium) = 16.5 megaton EMP warhead
DF-5 - China Nuclear Forces
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www.fas.org/nuke/guide/china/icbm/df-5.htm
Jul 28, 2000 - DF-5. The Chinese flight tested a vehicle with ICBM characteristics to a ... reported that the
5-megaton nuclear warheads for the DF-5/CSS-4 ..."
Multimegaton Weapons
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www.johnstonsarchive.net/nuclear/multimeg.html
The People's Republic of China has deployed a warhead estimated at 5 megatons on the Dong Feng 5 ICBM (U.S. designation CSS-4). The DF-5 can carry a ..."
http://books.google.com/books?id=1l...BQ#v=onepage&q=DF-5 ICBM five megaton&f=false
"books.google.com/books?isbn=0275985776
Clayton K. S. Chun - 2006 - History
The DF-5, a true ICBM with a five-megaton nuclear yield, can deploy its payload to any target within the continental United States. This weapon can also provide ..."
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DF-5 ICBM carries a five-megaton thermonuclear warhead.
DF-5A ICBM has improved throw-weight, improved guidance system, and longer range.
DF-5B ICBM has 8 to 10 MIRVs according to Richard Fisher. MIRVing of the DF-5 was in response to U.S. withdrawal from the ABM treaty and to ensure a credible Chinese counterstrike.
Here's the Richard Fisher citation for the DF-5B 10-MIRVed ICBM.
http://www.strategycenter.net/docLib/20121125_FisherLessisNotEnough112512.pdf (p. 12)
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The 2012 China Report does mention an “enhanced silo-based DF-5,” that could be a reference to the “DF-5B,” which in 2010 an Asian military source told the author was a new MIRV version of the DF-5. This missile may also be capable of lofting 8 to 10 warheads. A large, detailed order of battle for the PLA that was posted on Chinese web pages in early 2012 indicates that there may already be two brigades, or up to 24 deployed DF-5B missiles.[44] While many parts of this document cannot be confirmed, it is at least indicative of the speed at which China could increase its nuclear warhead numbers at a time when the Administration may be considering U.S. warhead reductions to below 1,000."
A different citation from 1996 on China's 10-MIRVed DF-5 ICBM.
http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA308671