Radar Observers' Bombardment Information File (ROBIF)
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- Mike Voisin
Published: July 1945
In the fall of 1943, the British debuted the H2S radar, nicknamed Home Sweet Home. This technology was a means for bombardiers to find their targets at night or through overcast clouds. Up until that point, bombardiers generally had to see their targets to hit them. The United States developed its own version of the radar, named H2X. It was nicknamed Mickey for Mickey Mouse, which was not intended to belittle it.
Although radar had been invented, it was still a crude and mistrusted technology early in the war. H2X radar would have been the latest modern technology in 1945. In actuality H2X was not very precise. It was better suited to area bombing than to precision bombing.
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Comments: 9 (see below)
- Aircraft, Equipment
- Mike Voisin
- Private Collection
- 000022: Bombardiers' Information File (BIF)
- 000021: Navigators' Information File (NIF)
- 000145: Radar Photography
AAF Manual 95-101-1
- 000146: Radar Photographs
From the Photograph Album of John E. Voisin
- 000148: Pilots' Information File (PIF)
- John E. Voisin
Added: January 31, 2007
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Army Air Forces Collection, "Radar Observers' Bombardment Information File (ROBIF)" (item 000023), AAF Collection, http://AAFCollection.info/items/list.php?item=000023 (accessed 17 January 2018).
Judging by the cover, there is no doubt this training manual targeted Tokyo, Japan.
Table of contents and front matter.
Section 1: General
Section 2: Radar Equipment
Section 3: Auxiliary Radar Equipment
Section 4: Radar Navigation
Section 5: Radar Bombing
Section 6: Radar Bombing Procedures
Section 7: Radar Intelligence
Section 8: Radar Photography
Index and back matter.
Comments (Add a Comment)
 Mike Voisin (12-Jul-2008 05:40 PM)
This book belonged to my father, John E. Voisin. He was being trained as a Radar Observer (Bombardment) at Yuma, Arizona as the war ended. This was no doubt in preparation for the planned invasion of Japan.
 felipe (14-Dec-2008 12:40 PM)
I fan of radar
 G Dale Cartwright (12-Sep-2009 07:20 PM)
I took my training at Boca Raton and Morrison Field in Florida. I flew as a Radar Observer with the 53rd. Weather Recon. Sqdn. USAAC and later the 373rd. Long Range Weather Sqdn. This Radar Equipment was very good, but in the early days the Pilots didn't have much faith in it.
 Peter Boczar (27-Sep-2009 12:17 AM)
I've been researching my missing uncle Larry Grasha whose unit, 3rd Sea Search Attack Squadron, was testing a lot of radar equipment. He was reassigned to something called project AQ7 located at Morrison Field. However, his plane went missing enroute to Belem, Brazil. There were two radar techinicians on board named Benjamin Evans and Louis Enderle. Can anyone tell me what was AQ7. Did anyone serve with these men? Many thanks.
 Robert Langille (14-Feb-2010 09:31 PM)
Nice site. Would you have any docs related to ECM (Electronic Countermeasures)? Looking for info on DBM-1 and TDY-1 along with other types of jammers or EW equipment.
Any assistance would be greatly appreciated.
Ottawa, Ontario, Canada
 Mike Voisin (15-Feb-2010 08:55 AM)
Hi Robert, I do not have any documents that reference electronic countermeasure equipment yet. Perhaps someone will contribute such material to the collection in the future.
 THOMAS G HARRISON (07-Aug-2012 04:41 PM)
OUTSTANDING RESEARCH ITEM ..... KEEP UP THE GOOD WORK !
ASIDE FROM THE STATS, IT ABSOLUTELY AMAZES ME HOW WELL THOSE GUYS DID THEIR JOB ...
 caesar BINGO benigno (24-Jan-2013 02:01 AM)
hi if you are interested i was a graduate of the UK ECM school at chedddington air base dec 1944 i flew 20 odd missions in a B 17 assg to 452nd bm gp. the equipment i used was a APR 4 and a APT 1. my last assignment, was a Boeing test team member at Edwards AFB 1986=1989, on the B-1 evalating the ecm capabilities of the B-1. caesar benigno Col USAF/ ret
 Mike (22-Jan-2014 10:35 AM)
My farther was a radar observer-mechanic Bombardment 2867. Does anyone know what he would have done in the position. Would he have been a crew member on a bomber or what? Thanks
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Curator: Mike Voisin
Army Air Forces Collection Item 000023 is licensed by Mike Voisin under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.