Flammpanzer III Ausf M (F1) SdKfz 141/3:

Chassis no. 77609-77708. 100 Ausf M were converted from February to April 1943 by Wegmann Waggonfabrik in Kassel. The main gun was replaced by an oil projector 1,500 mm long and 140 mm in diameter. Two oil tanks (1,000 liters⁴) with an auxiliary engine were installed in the hull. It could be used for approximately 125 1 second bursts. The maximum range was 60 m, however, practical range was 40 m. A MG 34 was installed in the hull and one coaxially in turret. 30 mm of additional armor plate was added. The crew consisted of the driver, radio operator, and commander. The commander was alone in the turret. Used FuG5 radio and commanders also had a FuG2.³

In July 1943, 41 were available at the battle of Kursk in the 6th, 11th, and Grossdeutschland Panzer Divisions.

Sources:

1. The Encyclopedia of Tanks and Armored Fighting Vehicles - The Comprehensive Guide to Over 900 Armored Fighting Vehicles From 1915 to the Present Day, General Editor: Christopher F. Foss, 2002
2. Panzer Truppen The Complete Guide to the Creation and Combat Employment of Germany's Tank Force 1933-1942, Thomas L. Jentz, 1996
3. Encyclopedia of German Tanks of World War Two, Peter Chamberlain and Hilary Doyle, 1999
4. Tanks of the World, 1915-1945, Peter Chamberlain, Chris Ellis, 1972
5. The Encyclopedia of Weapons of World War II, Chris Bishop, 1998
6. Jane's World War II Tanks and Fighting Vehicles The Complete Guide, Leland Ness, 2002
7. German Tanks of World War II, Dr. S. Hart & Dr. R. Hart, 1998
8. Tanks of World War II, Duncan Crow, 1979
9. Battle Winning Tanks, Aircraft & Warships of World War II, David Miller, 2000
10. AFV 2: Panzerkampfwagen III, Walter Spielberger
11. Tank Data, Aberdeen Proving Grounds Series, 1968?