What are Coffman cartridges?
The Coffman engine starter (also known as a “shotgun starter”) was a starting system used on many piston engines in aircraft and armored vehicles of the 1930s and 1940s. It used a cordite cartridge to move a piston, which cranked the engine.
How does a Koffman starter work?
The original Coffman starter system used a large shell, similar to a shotgun shell, filled with the explosive cordite. When fired inside the breech, the fast-moving high-pressure gas struck the surface of the engine piston, giving the engine the impetus to rotate.
What is a cartridge starter?
Definition of cartridge starter : a starter for gasoline engines that consists of a cartridge containing an explosive which on being electrically detonated forces the piston forward and starts the engine. — called also combustion starter.
How long do starter cartridges last?
Starter cartridges are intended to get your printer up and running. They have a smaller amount of ink than a standard yield cartridge, and will probably last for a couple of weeks if you print occasionally, so expect to order a new set of ink relatively soon.
How is the cartridge ignited for starting the engine?
The cartridge is ignited by applying voltage through the connector at the end of the breech handle. Upon ignition, the cartridge begins to generate gas. The fuel/air combustion starter was used to start gas turbine engines by using the combustion energy of jet A fuel and compressed air.
What are the three general types of inertia starter?
There are three general types of inertia starters: hand, electric, and combination hand and electric.
Where were the guns on a Spitfire?
If machine guns were used, they were used in the outboard position. The “a” and “b” wings were not used after the Spitfire V.
What was the Coffman engine starter used for?
The Coffman engine starter (also known as a “shotgun starter”) was a starting system used on many piston engines in aircraft and armored vehicles of the 1930s and 1940s. It used a cordite cartridge to move a piston, which cranked the engine.
What kind of cartridge did the Coffman engine use?
It used a cordite cartridge to move a piston, which cranked the engine. The Coffman system was one of the most common brands; another was the Breeze cartridge system, which was produced under Coffman patents. Most American military aircraft and tanks which used radial engines were equipped with this system.
What kind of starter did a Marshall tractor use?
British-manufactured Marshall tractors, produced from 1930 to 1957, also employed a similar “shotgun” starter system, but the Marshall start-up used a smoldering wick that was screwed into the combustion chamber that acted as a diesel glow plug once the ignited propellant in the breech struck the piston and began engine rotation.
What was the most common shotgun starter in the 1930s?
The Coffman starter was the most common brand of cartridge starters during the mid-1930s, and the name was used as a generic description. Advances in electrical technology have made shotgun starters obsolete for most uses. ^ “The Industry: Plessey Products Exhibited”.