This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1917 edition. Excerpt: ...Exhaust valve seating properly. (Continued) IGNITION SYSTEM: Remove ignitor plugs and free ignitor contact tips from any trace of carbon. See that movable contact pin makes proper contact with stationary contact pin. " " I the insulation of the fixed contact pin is good. " " the wires are clean and properly connected to contact pins. " " lock nuts on fixed contact pin locks properly. " " the flipper on the taper of the movable contact pin is fast. " " lock nuts on ignitor trip rod and ignitor lifter rod locks properly. " " ignitor plug seats tightly in the engine cylinder on the ground seat. " " ignitor trip rod is not bent. " " the trip arm is well clear of the trip blade when ignitor lifter rod is in lowest position. H H the trip blade spring is not weak and that it keeps the trip blade in place. Test setting of ignition: Test timing of ignition. BATTERY: Connections clean. Connections perfect. LUBRICATING SYSTEM: Take off the cover of the force feed oiler and inspect for sediment. Drain the tank through the drain plug and flush with kerosene. Blow out the oil feed pipes. MAGNETO: Timing correct. i INSPECTION WEEKLY FoR RUNNING CIRCULATING WATER SYSTEM: Valves working properly. Valves seating properly. Pump chamber clear of sediment. Inspect by removing valve caps in top of pump. BATTERY: Test with voltmeter. Test with hydrometer for density.-Inspect battery plates for deterioration. INSPECTION MONTHLY F012 ADJUSTMENT AIR SYSTEM: Air compressor inlet valve for need of grinding. " " inlet valve spring for tension. " " discharge valve for need of grinding. " " discharge valve spring for tension..'...

With German U-boats wreaking havoc in the merchant shipping of the Triple Entente and increasingly jeopardizing citizens of the United States in the process, military and civilian officials in the neutral country began organizing as early as 1915 for what appeared to be an inevitable entry into the First World War. Key among the objectives for U.S. leadership was the suppression of the U-boats. After inspecting the antisubmarine warfare practices and vessels of other nations in the Triple Entente, the U.S. Navy opted for the production of its own specialized antisubmarine warfare craft. These 110-foot wooden vessels would carry the moniker of SC, short for submarine chaser.It took little time for the submarine chaser to change from a specific vessel type into a broader vessel classification. These small combatant craft were but one part of a broader antisubmarine warfare strategy that constantly changed with the introduction of new technology and new mentalities and were needed to carve out a specialized niche within that landscape.This thesis utilizes historical records in conjunction with three-dimensional models of three significant eras in submarine chaser construction to evaluate the influence in their design and development throughout the First and Second World Wars and determine which influences stand out as the most influential in the overall growth of the vessel type.

Submarine chaser SC 38 was a heavily armed miniature warship. Its crew saw a bit of everything, from hunting U-boats on the barrage lines, to shooting mines in the North Sea. The book "US Submarine Chaser 38 in World War I", tells the story of this chaser and its crew. Photos, letters, and personal accounts from the collection of GM1c Raymond Featherstone, Sr., bring his experiences alive, and in the biographies of the other crewmen we see a great little slice of history, as WWI intersects the lives of so many men: where they came from, and what brought them across the Atlantic Ocean and into the path of U-boats on a 110-foot wooden motorboat.

Hastily built at the onset of World War II to stop German U-boats from taking their toll on Allied shipping, the 110-foot wooden subchasers were the smallest commissioned warships in the U.S. Navy, yet they saw as much action as ships ten times their size. In every theater of war these “expendable” workhorses of the fleet escorted countless convoys of slow-moving ships through submarine-infested waters, conducted endless mind-numbing antisubmarine patrols, and were used in hundreds of amphibious operations. Some subchasers worked as gunboats to search for and destroy enemy barges. Others rescued downed airmen and retrieved drowning soldiers under heavy enemy fire. During the German occupation of Norway, three American-built subchasers and their Norwegian crews came to be known as “The Shetlands Bus” for their clandestine work as ferries—the only link between Norway and the free world. This book, written by the commander of one of the subchasers, defines their place in naval history and gives readers a taste of life on board the wooden warships. Ringing with authenticity, it describes the cramped quarters and unforgiving seas as well as the tenacious courage and close bonds formed by the men as they sought out the enemy and confronted nature. Long overshadowed by the larger, faster warships and more glamorous PT boats of World War II, subchasers have been mostly forgotten. This work restores the plucky little ships to their hard-earned status as significant members of the fleet.