Tracking U.S. Navy Specialties: The History of Radarmen

Many people collect U.S.Navy rating badges and many other folks collect ephemera. Still other collectors pursue metal insignia and uniform devices. But the question I have is, how many of them combine all three “genres” of militaria collecting into one, singular focus?

As a ten-year veteran of the U.S. Navy and an amateur military historian, I’ve researched a vast number of subjects ranging from basic minutia to emotionally gut-wrenching and personally significant stories with historical context that I find utterly fascinating. During my naval career, I performed my job without so much as a fleeting thought regarding the historical aspects of my chosen specialty. Navy enlisted men and women receive schooling and training to perform specific job functions to meet the needs of each unit or command. These ratings (similar to the Army’s Military Occupational Specialty or MOS) are denoted on each sailor’s sleeve insignia with a unique emblem symbolizing certain characteristics of that specialty.

Radarmen: rating badges

Somewhat uncommon, these two-piece rating badges were a short-lived experiment. The sailors need only swap out the chevrons with advancement (or demotion).

My own rating, Operations Specialist, seemed to be (to me) quite ordinary and less historic as compared to traditional ratings such as boatswain’s mates, gunner’s mates and machinist’s mates. I was none too interested in discovering any of the historical aspects or the development of my rating beyond what was presented in my training manuals. Other than the basic historical narratives (also presented in the training manual) regarding the history of naval radar, I didn’t give it much thought. Despite this lack, I did manage to excel at my job and advance in a timely manner.

What turned me onto the historical backstory of my rating was an insignificant story that I read about the installation of radar onto the USS Washington (BB-56) as told in the pages of Ivan Musicant’s 1986 book, Battleship at War: The Epic Story of the USS Washington. What was revealing to me was how radar was installed onto the ship and essentially turned over to untrained operators and technicians. In his book, Wahoo: The Patrols of America’s Most Famous World War II Submarine, Medal of Honor recipient Admiral Richard O’Kane made considerable mention of the submarine’s unreliable radar and the continuous need for the boat’s radiomen (the technicians and operators) to service the wonder-device. Both of these books planted a seed that my navy job had an important history that was berthed during World War II and developed into a key job function in today’s radar-reliant naval service.

When I added the activity of collecting to my interests, I cultivated a new desire that prompted me into new research directions. One could say that when I was bitten by the rating badge-collecting bug, my interest was tempered by context. I focused on ratings that had connection to me such as my grand-uncle (post-WWI musician), grandfather (ship’s cook), brother-in-law (machinist’s mate), uncle (radioman) and my own. Along with those rating badge pursuits, I picked up some of the more highly sought-after rates whose ranks were filled by more than their share of heroic blue jackets, such as hospitalmen, aviation radiomen. However, I found myself drawn to the historical aspects of my own rating, originally known as ‘Radarman’.

The Radarman rating (abbreviated as RdM) was officially established in 1943 after radar became more widely adopted aboard ships and submarines, and was at that time finding its way onto naval aircraft. The demand for highly skilled and trained operators and technicians prompted the Navy’s Bureau of Personnel to create a program to send qualified personnel to the fleet to better utilize the secret weapon. The rating badge that was subsequently created employed a borrowed feature from the radioman rating as it referenced the close connections to the communications technology. Also, many of the early Radarmen had previously served as Radiomen. The badge symbol used the electrical spark bolts (three rather than the four seen on the Radioman’s insignia) with an overlaid arrow indicating the directional detection aspects of the job.


This OS insignia shadow box would be a fine addition to my RD/OS group (source: Shadowbox For You).

In 1946, the Navy updated the insignia, incorporating the oscillator symbol while carrying over the arrow insignia. In 1973, change impacted this rate once again as BUPERS split the rate, removing the technicians (rolling them into the electronics technician rate) and those who were skilled as Electronic Warfare (ESM, ECM and ECCM) specialists as EWs. Those who remained were  re-designated as Operations Specialists (OS) yet the rating badge remained and continues at present.

RD Rating Badges

A selection of my Radarman rating badges. All are from during and immediately following the end of WWII.

My collection of OS militaria began with what remained from my time in the service: insignia that was never applied to my uniforms. I began to pursue badges from WWII and worked my way forward to the 1960s and 70s as I picked up some special bullion versions. I searched for insignia from the rating’s roots and then onto ephemera, such as rate training manuals from several eras. I have managed to save some of the tools of the trade in the area of navigation, such as compass and dividers, parallel rulers, and nautical charts. I am still seeking an OJ-194 NTDS (Naval Tactical Data System) console for my office (OK, perhaps this would be overkill).

With manufacture dates ranging from the 1940s, this selection of Radarman/Operation Specialist badges includes current-issue SSI.

With manufacture dates ranging from the 1940s, this selection of Radarman/Operation Specialist badges includes current-issue SSI.

I always keep my eyes open for anything that might augment this collection without breaking my budget or fill the floorspace in my home. At some point, I would like to assemble this collection in order to create a well-rounded display that is representative of this rating.




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M. S. Hennessy

M. S. Hennessy Gail, I would be happy to assist you however I am possible. I will send you an email (to the address that is associated with this post) to communicate more discreetly. Kind regards, M. S. Hennessy April 4th, 2014 at 2:13 PM

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