Today in WW II: 18 Jun 1940 General Charles de Gaulle broadcasts from London, calling on all French people to continue the fight against Nazi Germany.  More 
18 Jun 1940 Winston Churchill speaks to Parliament, concluding, "...if the British Empire and its Commonwealth last for a thousand years, men will still say, 'This was their finest hour'".
18 Jun 1941 Nazi Germany and Turkey sign treaty of friendship.
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M-40 155mm Gun Motor Carriage

The M-40 Gun Motor Carriage mounted the M1 or M2 155mm gun in an M3 mount. This is the identical carriage to the M-43 that mounts the 8-inch howitzer.

The carriage was developed from the M4 Sherman tank chassis. In development, this vehicle was designated T83. In addition to its armament, it carred 20 rounds of 155mm ammunition. It was fitted with a rear spade and a folding crew platform behind the gun.

The manufacturer was Pressed Steel Car Company of Pittsburgh, PA.

Specifications of the M-40 155mm Gun Motor Carriage

Crew 8
Weight 41 tons
Height 9 feet 4 in.
Width 10 feet 4 in.
Length 21 feet 10 in.
Engine Continental R-975-C4 (9 cyl radial)
Horsepower 395 bhp
Road Speed 24 mph
Range 100 miles

A pair of M-40 155mm Gun Motor Carriages of Battery B, 937th Field Artillery Battalion, providing fire support to U.S. Army 25th Infantry Division , Munema, Korea, 26 November 1951
A pair of M-40 155mm Gun Motor Carriages of Battery B, 937th Field Artillery Battalion, providing fire support to U.S. Army 25th Infantry Division , Munema, Korea, 26 November 1951.

M-40 155mm Gun Motor Carriage
M-40 155mm Gun Motor Carriage.