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1. Jon T. Sumida <firstname.lastname@example.org> 2. CARL BARNA <email@example.com> 3. Rick Ramos <firstname.lastname@example.org> 4. Peter Beeston <srimutiara@BIGPOND.COM> 5. Thomas Wildenberg <email@example.com> 6. SteuryD@att.net 7. Jason Long <firstname.lastname@example.org> 8. William H. Roberts <email@example.com> -----Message from: Jon T. Sumida <firstname.lastname@example.org>----- Armored cruisers mounted vertical (i.e. belt) armour, protected cruisers had no vertical armor but shielded vital machinery spaces against explosions with an armored deck. Armored cruisers were generally introduced with the advent of Krupp armor, which was more efficient than previous armor and thus allowed protection over a large proportion of length without driving displacement upwards to prohibitive levels. Jon Sumida Jon T. Sumida <email@example.com> -----Message from: CARL BARNA <firstname.lastname@example.org>----- On this topic, if list readers had to make a recommendation on a reference work, which work would list readers think the better reference, Jane's Fighting Ships of WW I or Conways All the World's Fighting Ships 1906-1921? Why would the recommended book be a better choice than the other? Thanks. Carl Barna Arvada, CO CARL BARNA <email@example.com> -----Message from: Rick Ramos <firstname.lastname@example.org>----- According to globalsecurity.org an "armoured" cruiser was "a naval cruiser protected by armor on the sides as well as the decks and gun positions. This class was used from the end of the 19th century until World War I." According to the same source, a "protected cruiser" was a "vessel destitute of vertical armor and relying for protection upon constructive arrangements which are not designed to resist the entry of projectiles into the ship, but to limit as much as possible the damage that can be inflicted by them. The prominent feature in protected cruisers is a strong steel deck at or near the water-level capable of resisting the downward action of all but the most formidable projectiles, and beneath this deck the engines and magazines are placed. The vessel is divided into cells and compartments to such an extent as to render it extremely difficult to sink her by artillery perforations, and every expedient of shields, screens, and arrangement of coal-bunkers is employed to save the gunners from small projectiles and the fragments of shells. These vessels, being relieved from the incumbrance of thick vertical armour, can attain a far greater speed and carry a far more numerous armament than a battle-ship, handicapped as the latter is by the weight of her armour." Since "protected cruisers" were designed, built and served during the nineteenth century, I surmise they were a compromise allowing navies to build faster ships in an era of low-powered engines. Hope this helps. Captain Rick Ramos History Graduate Student Florida Gulf Coast University Rick Ramos <email@example.com> -----Message from: Peter Beeston <srimutiara@BIGPOND.COM>----- In general, armoured cruisers were armoured with side armour belts. Protected cruisers had no side armour but a protective armoured deck, in later designs usually sloping outwards with the area of deck on the centreline just above the LWL and the extremities at the sides of the ship below the waterline. The protective deck was combined with other forms of protection e.g. coal bunkers. Peter Beeston Peter Beeston <srimutiara@BIGPOND.COM> -----Message from: Thomas Wildenberg <firstname.lastname@example.org>----- A protected cruiser carried no side armor, but had a thin plate of curved armor set like an inverted saucer of the engines and other vital parts to deflect horizontal fire. Armored cruisers had side armor and had armored turrets. For specific details of USN ships, see the appendix of Alden's *The American Steel Navy.* Tom Wildenberg Burtonsville, Md. On Fri, Jan 22, 2010 at 6:06 PM, H-War Editor David Silbey < email@example.com> wrote: From: CARL BARNA <firstname.lastname@example.org> Date: Friday, January 22, 2010 6:06:03 PM Subject: Pre-WW I Cruiser terms In reading some references to early WWI cruisers I see the terms 'armoured' and 'protected' cruisers. Are these the same thing or are they different types of ships? If different, what is the difference? Thanks. Carl Barna Arvada, CO For subscription help, go to: http://www.h-net.org/lists/help/ To change your subscription settings, go to http://h-net.msu.edu/cgi-bin/wa?SUBED1=h-war To change your subscription settings, go to http://h-net.msu.edu/cgi-bin/wa?SUBED1=h-war Thomas Wildenberg <email@example.com> -----Message from: SteuryD@att.net----- Armored cruisers might be considered the pre-dreadnought era equivalent of the 20th-century heavy cruiser--faster than battleships, heavily armed and armored for their size (although some were actually bigger than contemporary battleships). They were used on commerce raiding, to hunt down commerce-raiders, or as a fast wing of the battle-line. The early British battle cruisers were originally classed as armored cruisers. Protected cruisers were more akin to light cruisers. They had only a modicum of protection--usually not more more than an armored deck. Most light cruisers of the period--also called scout cruisers, small cruisers, or just cruisers--had no armor at all. As a group they were used principally for reconnaissance, or as support for light forces--destroyers/torpedo boats. -- Donald P. Steury, Ph.D. CDC Historian Central Intelligence Agency Washington, D.C. 20505 SteuryD@att.net -----Message from: Jason Long <firstname.lastname@example.org>----- Protected cruisers were much smaller and usually only had an armored deck. Armored cruisers were nearly the size of battleships and had side armor as well as deck armor plus much larger guns. Jason Long Jason Long <email@example.com> -----Message from: William H. Roberts <firstname.lastname@example.org>----- Different types. In short, armored cruisers had side armor as well as armored decks; protected cruisers had only armored internal decks. "The term 'armored cruiser' applies to cruisers with side armor, in contradistinction to protected cruisers, which have only an armored deck, but generally, armored cruisers have at least one protective deck in addition to the side armor." William Hovgaard, _Modern History of Warships_, Annapolis: Naval Institute Press, 1971 (reprint of 1920 edition), III.32 (p. 203) William H. Roberts, CDR, USN (Ret), PhD William H. Roberts <email@example.com> ----- For subscription help, go to: http://www.h-net.org/lists/help/ To change your subscription settings, go to http://h-net.msu.edu/cgi-bin/wa?SUBED1=h-war -----