The Panzer Tractor Through the Years

By Sam Moore
Published on March 25, 2013
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An early advertising flyer for the Copar Panzer 8-1/2 hp tractor.
An early advertising flyer for the Copar Panzer 8-1/2 hp tractor.
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Made from 1954 to 1956, the Model A Copar Panzer featured an 8-1/2 hp Briggs & Stratton engine.
Made from 1954 to 1956, the Model A Copar Panzer featured an 8-1/2 hp Briggs & Stratton engine.
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From 1957 until about 1960, the Series T100 (single front wheel) and T200 (wide front end) Copar Panzers were built using 9 hp Briggs & Stratton engines. The tractor on the left is an earlier Model A; the wide front version is a T205.
From 1957 until about 1960, the Series T100 (single front wheel) and T200 (wide front end) Copar Panzers were built using 9 hp Briggs & Stratton engines. The tractor on the left is an earlier Model A; the wide front version is a T205.
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This 1966 Pennsylvania Panzer T758ES tractor has the 8 hp Kohler engine.
This 1966 Pennsylvania Panzer T758ES tractor has the 8 hp Kohler engine.
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A circa 1963 Pennsylvania Panzer Model T707ESL loader tractor with a 7 hp Kohler engine.
A circa 1963 Pennsylvania Panzer Model T707ESL loader tractor with a 7 hp Kohler engine.

Awhile back someone sent me
the following note: “Enclosed is an ad for Copar tractors. I have never heard
of a Copar and I am 77 years old.” The ad, from an area shopping paper, reads:
“For Sale,
antique tractors, Copar Panzars, Pennsylvania Panzars, Copars, all restored,
all have engines.” As anyone familiar with the well-built little Copar garden
tractor knows, the name should be spelled Panzer, just like the German army’s
armored forces in World War II.

Looking for a better way

The story of the Copar
tractor goes back to a hot summer day in 1953, when James A. Clark was trying
to put in the lawn around his new home in College Park, Md. Clark had rented a
walk-behind tractor with attachments but was making little progress and having
to work way too hard. Clark happened to be chief engineer at the Ahrendt
Instrument Co. in College Park,
a firm that developed and built precision electronic and electro-mechanical
navigation and gun control devices. Combining an engineer’s approach with that
of a lazy man, Clark determined that there must be an easier way to put in his
lawn, and a riding tractor was the answer. After checking out a number of the
riding machines then on the market, he came to the conclusion that none were up
to the job and he could design a better one.

The owner of Ahrendt
Instrument Co. gave Clark the go-ahead to use
company time and facilities to design his new garden tractor. By the end of
1953, a prototype had been hand-built. Ahrendt employees held a contest to name
the tractor and “Panzer” was the winning entry. The machine was exhibited at
the Garden Supply Trade Show in New
York in early 1954. Apparently the Panzer got a lot
of attention at the garden show, and Ahrendt made the decision to start
building garden tractors, a business completely foreign to its precision
instruments line.

Copar (based on the name of College Park) was formed
to handle manufacturing. The first Copar Panzer tractor was delivered to a Virginia dealer in July
1954. However, the manufacture of precision instruments and tractors didn’t
co-exist very well and a new facility was needed. A long-vacant mill in Laurel, Md.,
was purchased and renovated. The new Copar plant opened there in January 1955.

Glidamatic transmission

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