Batcat
The United States Air Force
553rd Reconnaissance Wing
The CHECO Reports


This page was created 07/30/14, Last updated 09/05/14.

Valid XHTML 1.0 Transitional


During the Vietnam war several studies were conducted to evaluate specific operations. These reports were identified as
"Project Contempary Historical Examination of Current Operations Report," or more commonly just a "CHECO" report.
The CHECO reports went into detail about the specific operation the report covered.

These reports were classified at the time they were written. Recently, since about 2006 on, the Air Force Historical Research Agency has declassified some of the CHECO reports.

What is presented here are CHECO reports which have been declassified, which I have a copy of, and which are pertinent to the combat operations of the 553rd Reconnaissance Wing, Batcat, during its operatoins at Korat RTAFB between late 1967 and December 15, 1970. On December 15, 1970 the 553rd Reconnaissance Wing was inactivated, however the wing's EC-121R aircraft and the assigned squadron personnel were immediately reassigned to the 388th Tactical Fighter Wing also at Korat RTAFB. Batcat continued to fly combat missions using the EC-121R as a unit of the 388th TFW until December 1971 when the last EC-121R departed Korat RTAFB for the U.S. It was not until early 1972 before all of those who were originally assigned to the 553rd Recon Wing (but now assigned to the 388th TFW) returned to the U.S.

NOTE - the CHECO reports presented here are very large in file size, in Adobe PDF format. Recommend a high speed Internet connection to down load. In some cases the versions of the CHECO report I obtained arrived in Adobe Acrobat Reader version 5. You will require Adobe Acrobat version 5 or later to read these files. Because of the very large size of these version 5 files I converted some files from Adobe Acrobat version 5 to Adobe Acrobat version 8. Primary reason is the newer Adobe Acrobat version 8 is much more efficient than version 5. As an example the first CHECO report, in version 5 format it is 33 meg in size, the exact same data in Adobe Acrobat version 8 format is 12 meg. So converting the file to Adobe Acrobat version 8 reduces files size by about 2/3 with the data exactly the same, however you will need Adobe Acrobat or Adobe Acrobat Reader version 8 or later to read these PDF files. Recommend first downloading the Adobe Acrobat version 8, if you have problems because your PC has an earlier version of Adobe Acrobat Reader, you can then download the larger version in Adobe Acrobat version 5 format, or see below to download a free copy of the latest Adobe Acrobat Reader from the official Adobe site.

SUGGESTION - after the report is downloaded into your browser and displayed, then save the file to your PC hard drive. Once the file is saved to your PC hard drive it will be accesible off line, which allows you to load, display, and move through pages much faster than you can on line. If you have difficulties contact me by email at westin@westin553.net and let me know which file you are having trouble with, which version you downloaded, and the version of Adobe Arcobat you are using.

Adobe Acrobat Reader is free, a large application program file for which a high speed Internet connection is highly recommended. If you don't already have Adobe Acrobat Reader on your PC (most PC's already have Adobe Acrobat Reader), click on the "Get Adobe Reader" icon for a free download of the latest Acrobat Reader from the official Adobe site:
Adobe Arcobat Reader

Igloo White CHECO Reports


Both files below have identical data, recommend you download and try the version 8 first, unless you must use the earlier version 5.
Igloo White Operations December 1, 1967 to March 31, 1968 in version 8 PDF, about 12 meg in size.
Igloo White Operations December 1, 1967 to March 31, 1968 in version 5 PDF, about 33 meg in size.
This CHECO report is dated July 31, 1968, is 64 pages in length, Adobe PDF format, and covers the initial Igloo White operations. This report prepared by Headquarters Pacific Air Forces (PACAF), Directorate, Tactial Evaluation. My thanks to Les Robbins for this CHECO report. Added 07/30/14, updated to have both version 5 and version 8 PDF 09/05/14.

Both files below have identical data, recommend you download and try the version 8 first, unless you must use the earlier version 5.
Igloo White Operations July 1968 to December 1969 in version 8 PDF, about 14 meg in size.
Igloo White Operations July 1968 to December 1969 in version 5 PDF, about 44 meg in size.
This CHECO report is dated January 10, 1970, is 89 pages in length, Adobe Acrobat PDF format, and covers the operations during this period. This report prepared by Headquarters Pacific Air Forces (PACAF), Directorate, Tactial Evaluation. My thanks to Les Robbins and John Putnam (both sent me copies of this CHECO report the same day) for this CHECO report. Added 07/30/14, updated to have both version 5 and version 8 PDF 09/05/14.

Thailand Base Defense CHECO Report


Base Defense in Thailand during the Vietnam era. This CHECO report is dated February 18, 1973, 20 pages in length. This CHECO report was prepared by the Directorate of Operations Analysis, CHECO Corona Harvest Division. It includes vegetation control at Korat RTAFB and other Thailand bases used by the USAF during the Vietnam era. This file also available on the Batcat Veterans Benefit page. My thanks to Gil Jennings for this report. File is in PDF format, about 4.3 meg in size. Added 07/30/14.

Air Strikes CHECO report


Both files below have identical data, recommend you download and try the version 8 first, unless you must use the earlier version 5.
Air Strike Control in version 8 PDF, about 8 meg in size.
Air Strike Control in version 5 PDF, about 27 meg in size.
This CHECO report has two separate parts. Part 1 details control of the battle area by Airborne Battlefield Command and Control Center (ABCCC) aircraft such as the RC-47 "Alleycat" and EC-130 "Hillsboro" over the "Moonbeam" orbit. Part 2 deals with the Strike Detectors or Forward Air Controllers (FAC's). Information about the use of aircraft such as the Cessna O-1 and O-2, night FAC such as Candlestick C-123 and Blindbat C-130. My thanks to Les Robbins for this CHECO report. This CHECO report has 69 pages, Adobe PDF format. Added 08/17/14, updated to have both version 5 and version 8 PDF 09/05/14.

College Eye CHECO Report


College Eye. This CHECO report is dated November 1, 1968, 12 pages in length. This report prepared by Headquarters Pacific Air Forces (PACAF), Directorate, Tactial Evaluation, CHECO divison. File is in PDF format, 368K Bytes in size. College Eye EC-121D aircraft operated at Korat RTAFB along side the Batcat EC-121R aircraft on the same ramp. My thanks to John Putnam for sending me this file. Added 07/30/14.




Return to the 553rd Homepage Main Batcat homepage.

Return HomeWestin Homepage to Larry and Sue's Homepage.