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When time and space allow, some forms of half-shelters can be combined into a larger, more complex tent. [3] Shelter-halves are usually designed to serve double duty as ponchos against the rain, or for the concealment of snipers. While the fabric is often simple olive drab, several nations use camouflaged fabric.
Initially set up as 'the Medical Establishment for the Military Department of the Ordnance', its remit was extended to cover 'the Military and Civil Departments of the Ordnance' in 1814. In 1853 it was merged into the Army Medical Department. [9] In 1796 Edward Coleman was appointed Veterinary Surgeon to the Board of Ordnance.
A tent was 3 by 3.5 metres (0.6 m for the aisle), ten men per tent. Ideally a company took 10 tents, arranged in a line of 10 companies, with the 10th near the Porta Decumana. Of the c. 9.2 square metres of bunk space each man received 0.9, or about 0.6 by 1.5 m, which was only practical if they slept with heads to the aisle.
The standard 3.0-litre D-4D engine was modified to cope with the very low temperatures. Heaters were added to increase fuel and coolant temperature, a large heavy-duty battery was fitted, and the air intake was modified. A 90-litre auxiliary fuel tank was fitted, along with an extra-thick sump guard. The gear ratio was lowered to 1:4.88.
An industrial sewing machine can handle heavy-duty sewing jobs. Industrial machines, unlike domestic machines, perform a single dedicated task and are capable of continuous use for long periods; they have larger moving parts and larger motors rated for continuous operation.
The 30th became a heavy bombardment squadron in December 1939 when it received its first Boeing B-17B Flying Fortresses. The B-17B was the first production version of the Flying Fortress, and the squadron was upgraded to the faster and better-armed B-17C in late 1940, and to the B-17D in 1941.