Did you know this

[colin jones]

The jerry can!....Did you know?

An interesting read about the "Jerry can" which was designed by the Germans
played a great role in helping our allies defeat Hitler's Armies. c/d

Subject: A very fascinating piece of WW II history - The Little Can that
could


The jerry can!


During World War II the United States exported more tons of petroleum
products than of all other war material combined. The mainstay of the
enormous oil-and gasoline transportation network that fed the war was the
oceangoing tanker, supplemented on land by pipelines, railroad tank cars,
and trucks. But for combat vehicles on the move, another link was
crucial—smaller containers that could be carried and poured by hand and
moved around a battle zone by trucks.

Hitler knew this. He perceived early on that the weakest link in his plans
for blitzkrieg using his panzer divisions was fuel supply. He ordered his
staff to design a fuel container that would minimize gasoline losses under
combat conditions. As a result the German army had thousands of jerrycans,
as they came to be called, stored and ready when hostilities began in 1939.

The jerrycan had been developed under the strictest secrecy, and its unique
features were many. It was flat-sided and rectangular in shape, consisting
of two halves welded together as in a typical automobile gasoline tank. It
had three handles, enabling one man to carry two cans and pass one to
another man in bucket-brigade fashion. Its capacity was approximately five U
S. gallons; its weight filled, forty-five pounds. Thanks to an air chamber
at the top, it would float on water if dropped overboard or from a plane.
Its short spout was secured with a snap closure that could be propped open
for pouring, making unnecessary any funnel or opener. A gasket made the
mouth leak proof. An air-breathing tube from the spout to the air space kept
the pouring smooth. And most important, the can’s inside was lined with an
impervious plastic material developed for the insides of steel beer barrels.
This enabled the jerrycan to be used alternately for gasoline and water.

Early in the summer of 1939, this secret weapon began a roundabout odyssey
into American hands. An American engineer named Paul Pleiss, finishing up a
manufacturing job in Berlin, persuaded a German colleague to join him on a
vacation trip overland to India. The two bought an automobile chassis and
built a body for it. As they prepared to leave on their journey, they
realized that they had no provision for emergency water. The German engineer
knew of and had access to thousands of jerrycans stored at Tempelhof Airport
He simply took three and mounted them on the underside of the car.

The two drove across eleven national borders without incident and were
halfway across India when Field Marshal Goering sent a plane to take the
German engineer back home. Before departing, the engineer compounded his
treason by giving Pleiss complete specifications for the jerrycan’s
manufacture. Pleiss continued on alone to Calcutta. Then he put the car in
storage and returned to Philadelphia.

Back in the United States, Pleiss told military officials about the
container, but without a sample can he could stir no interest, even though
the war was now well under way. The risk involved in having the cans removed
from the car and shipped from Calcutta seemed too great, so he eventually
had the complete vehicle sent to him, via Turkey and the Cape of Good Hope.
It arrived in New York in the summer of 1940 with the three jerrycans intact
Pleiss immediately sent one of the cans to Washington. The War Department
looked at it but unwisely decided that an updated version of their World War
I container would be good enough. That was a cylindrical ten-gallon can with
two screw closures. It required a wrench and a funnel for pouring.

That one jerrycan in the Army’s possession was later sent to Camp Holabird,
in Maryland. There it was poorly redesigned; the only features retained were
the size, shape, and handles. The welded circumferential joint was replaced
with rolled seams around the bottom and one side. Both a wrench and a funnel
were required for its use. And it now had no lining. As any petroleum
engineer knows, it is unsafe to store gasoline in a container with rolled
seams. This ersatz can did not win wide acceptance.

The British first encountered the jerrycan during the German invasion of
Norway, in 1940, and gave it its English name (the Germans were, of course,
the “Jerries”). Later that year Pleiss was in London and was asked by
British officers if he knew anything about the can’s design and manufacture.
He ordered the second of his three jerrycans flown to London. Steps were
taken to manufacture exact duplicates of it.

Two years later the United States was still oblivious of the can. Then, in
September 1942, two quality-control officers posted to American refineries
in the Mideast ran smack into the problems being created by ignoring the
jerrycan. I was one of those two. passing through Cairo two weeks before the
start of the Battle of El Alamein, we learned that the British wanted no
part of a planned U.S. Navy can; as far as they were concerned, the only
container worth having was the Jerrycan, even though their only supply was
those captured in battle. The British were bitter; two years after the
invasion of Norway there was still no evidence that their government had
done anything about the jerrycan.

My colleague and I learned quickly about the jerrycan’s advantages and the
Allied can’s costly disadvantages, and we sent a cable to naval officials in
Washington stating that 40 percent of all the gasoline sent to Egypt was
being lost through spillage and evaporation. We added that a detailed report
would follow. The 40 percent figure was actually a guess intended to provoke
alarm, but it worked. A cable came back immediately requesting confirmation.

We then arranged a visit to several fuel-handling depots at the rear of
Montgomery’s army and found there that conditions were indeed appalling.
Fuel arrived by rail from the sea in fifty-five-gallon steel drums with
rolled seams and friction-sealed metallic mouths. The drums were handled
violently by local laborers. Many leaked. The next link in the chain was the
infamous five-gallon “petrol tin.” This was a square can of tin plate that
had been used for decades to supply lamp kerosene. It was hardly useful for
gasoline. In the hot desert sun, it tended to swell up, burst at the seams,
and leak. Since a funnel was needed for pouring, spillage was also a problem


Allied soldiers in Africa knew that the only gasoline container worth having
was German. Similar tins were carried on Liberator bombers in flight. They
leaked out perhaps a third of the fuel they carried. Because of this,
General Wavell’s defeat of the Italians in North Africa in 1940 had come to
naught. His planes and combat vehicles had literally run out of gas.
Likewise in 1941, General Auchinleck’s victory over Rommel had withered away
In 1942 General Montgomery saw to it that he had enough supplies, including
gasoline, to whip Rommel in spite of terrific wastage. And he was helped by
captured jerrycans.

The British historian Desmond Young later confirmed the great importance of
oil cans in the early African part of the war. “No one who did not serve in
the desert,” he wrote, “can realize to what extent the difference between
complete and partial success rested on the simplest item of our
equipment—and the worst. Whoever sent our troops into desert warfare with
the [five-gallon] petrol tin has much to answer for. General Auchinleck
estimates that this ‘flimsy and ill-constructed container’ led to the loss
of thirty per cent of petrol between base and consumer. … The overall loss
was almost incalculable. To calculate the tanks destroyed, the number of men
who were killed or went into captivity because of shortage of petrol at some
crucial moment, the ships and merchant seamen lost in carrying it, would be
quite impossible. After my colleague and I made our report, a new
five-gallon container under consideration in Washington was canceled.

Meanwhile the British were finally gearing up for mass production. Two
million British jerrycans were sent to North Africa in early 1943, and by
early 1944 they were being manufactured in the Middle East. Since the
British had such a head start, the Allies agreed to let them produce all the
cans needed for the invasion of Europe. Millions were ready by D-day. By V-E
day some twenty-one million Allied jerrycans had been scattered all over
Europe. President Roosevelt observed in November 1944, “Without these cans
it would have been impossible for our armies to cut their way across France
at a lightning pace which exceeded the German Blitz of 1940.”

In Washington little about the jerrycan appears in the official record. A
military report says simply, “A sample of the jerry can was brought to the
office of the Quartermaster General in the summer of 1940"

Richard M. Daniel is a retired commander in the U.S. Naval Reserve and a chemical engineer.

Source: http://www.jerrycan.com/the-little-can-that-could/