CV60
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ORIGINAL: CV60
Possible error on DB 3000 Weapon_554, 90, 870, 89, 553, 72, 93, 1721, (Baseline JDAM series, GBU31/32/28). Currently it is listed as 10meters. It should be 5 meters.
The CEP of the JDAM is officially listed as 13 meters. See IHS. "GBU-31, GBU-32 and GBU-38 Joint Direct Attack Munition (JDAM)." Jane's Air-Launched Weapons, February 2015, FAS reports that the JDAM achieved an accuracy of 10 meters CEP in tests: Federation Of American Scientists. Accessed December 29, 2019. https://fas.org/man/dod-101/sys/smart/jdam.htm This 10 meter figure is the CEP used in the database.
However, Jane's/IHS reports that based on experience, the JDAM is capable of 14 meters CEP with only INS guidance, and 8 meters with INS and GPS guidance. See IHS. "GBU-31, GBU-32 and GBU-38 Joint Direct Attack Munition (JDAM)." Jane's Air-Launched Weapons, February 2015. This figure is partially confirmed by the USAF, which in 2003 reported "[JDAM 31/32/38] weapon circular error probable of 5 meters or less during free flight when GPS data is available." [emphasis added]. see https://www.af.mil/About-Us/Fact-Sheets/Display/Article/104572/joint-direct-attack-munition-gbu-313238/
One other minor edit: The database gives the range of the JDAM as 1-12 nm. Janes's gives a maximum range of 13 nm. The USAF source cited above (https://www.af.mil/About-Us/Fact-Sheets/Display/Article/104572/joint-direct-attack-munition-gbu-313238/) claims 15 miles, but that may be statute miles. If so, that is consistent with Jane's 13nm figure.
UPDATE: The JDAM program office confirms the 5 meter CEP. See https://www.esd.whs.mil/Portals/54/Documents/FOID/Reading%20Room/Selected_Acquisition_Reports/19-F-1098_DOC_46_JDAM_SAR_Dec_2018.pdf at page 8.
< Message edited by CV60 -- 12/31/2019 8:38:14 PM >
Additional database corrections for the laser designated versions of the JDAM (LJDAM). These are DB3000 Weapon_2259, 3213, 2260, 3101, 3102, 3394, 3393. Each of these weapons has the following errors: 1) They are listed as having a range of 1-12 nm. This is incorrect. It should be 1-13 nm. See Boeing, "Laser JDAM," https://www.boeing.com/resources/boeingdotcom/defense/weapons-weapons/images/laser_jadam_product_card.pdf; 2) They are listed as having the properties of "INS w/ GPS Navigation" This is only partially correct. These are laser designated versions of the JDAM, so like the "PAVEWAY II" LGB, they should have the "Supports Buddy Illumination" and "Illuminate at Launch". Note that because the LJDAM also has a GPS/INS, it does not require laser illumination. However, it will suffer a decreased accuracy if the target is not illuminated. 3) the LJDAM's accuracy is increased over the baseline JDAM by the inclusion of the laser seeker. Currently, the database lists all JDAM and LJDAM as having a 10 meter CEP. According to the JDAM program office, the baseline JDAM series has a CEP of 5 meters See https://www.esd.whs.mil/Portals/54/Documents/FOID/Reading%20Room/Selected_Acquisition_Reports/19-F-1098_DOC_46_JDAM_SAR_Dec_2018.pdf at page 8. Therefore, the CEP of LJDAM should be less, especially as it has a capability against moving targets, including vehicles at highway speeds. See https://www.boeing.com/resources/boeingdotcom/defense/weapons-weapons/images/laser_jadam_product_card.pdf Although I have not found an CEP for the LJDAM, I would estimate that it would be no worse (when using the laser seeker) that the Paveway II LGB, which is listed as 2 meters. See Weapon_955
< Message edited by CV60 -- 12/31/2019 10:49:29 PM >
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