MTB 1925

The MTB 1925 was a prototype semi-automatic rifle of Italian origin. The rifle is fed by en-bloc clips and chambered for the 6.5x52mm Carcano cartridge.

Overview

The MTB 1925 is fed from Carcano M91 clips that fall out of the bottom when the magazine is empty. The magazine follower closely resembles that of the M91. Despite appearing to be semiautomatic, it actually functions as a straight-pull manually-operated bolt action. The massive cylindrical bolt is in two sections of roughly equal size, front and rear. The rear section rotates when the bolt is opened via a spiral cam slot cut into it on the right side (possibly on the left as well, covered by the receiver). The front bolt segment does not turn.

The bolt handle on the right side is engaged only when the large, round knob is pushed in, and functions only to retract the bolt. Forward movement of the bolt comes from a mainspring behind the bolt. There is a long, narrow flat plate on the top of the receiver, which has slight fore-and-aft movement.

MTB

MTB may refer to:

Science and medicine

Transport and vehicles

Other uses

See also

MTB 102

MTB 102 is one of few surviving motor torpedo boats that served with the Coastal Forces of the Royal Navy in the Second World War. She was built as the Vosper Private Venture Boat as a prototype, but was purchased and taken into service by the Admiralty.

She was the smallest vessel to ever serve as a flagship for the Royal Navy.

Construction

Designed by Commander Peter Du Cane CBE, the Managing Director of Vosper Ltd, in 1936. She was completed and launched in 1937, she was bought by the Admiralty and taken into service with the Royal Navy as MTB 102, the 100 prefix denoting a prototype vessel.

She had an all-wood hull, described as "double diagonal Honduras mahogany on Canadian rock elm".

Besides the torpedoes she was built with, depth charges, machine guns and the Swiss Oerlikon 20 mm anti-aircraft cannon were all tested on her.

MTB 102 was the fastest wartime British naval vessel in service at 48 knots.

Wartime service

From 1939 to 1940 she was stationed in the English Channel. During Operation Dynamo (the evacuation from Dunkirk, May–June 1940) she crossed the channel eight times and acted as flagship for Rear Admiral Wake-Walker when his ship was disabled.

GM "old-look" transit bus

The GM "old-look" transit bus is a transit bus that was introduced in 1940 by Yellow Coach beginning with the production of the model TG-3201 bus. Yellow Coach was an early bus builder that was partially owned by General Motors (GM) before being purchased outright in 1943 and folded into the GM Truck Division to form the GM Truck & Coach Division. The Yellow Coach badge gave way to the GM nameplate in 1944. Production of most "old-look" models was stopped upon the release of the GM New-Look bus in 1959, however some smaller "old-look" models continued to be built until 1969. Approximately 38,000 "old-look" buses were built during the 29-year production run. The "old-look" name is an unofficial term that was applied to this series of GM buses after the release of the GM New-Look, with "New-Look" being an official term used by GM to describe their new line of buses that superseded the "old-look". This is an example of a retronym.

Design