Victorian to WW2 era masts & yard, Conning tower & searchlight queries.

Discussion in 'History' started by TeeCeeCee, Nov 22, 2012.

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  1. Hi
    I'd like to pick the knowledge of the forum if I may. Its been very helpful to me in the past.

    1> The big yard across the foremast on a warship has a jackstay running along the top. The attached image shows a lower yard from the 1850s which is basically the same design as appeared on later ships.

    Whats the purpose of the jackstay on a sail-less vessel? I caught a hint in one photo that they hung signal halyards off of it? Is that true?

    The yard was clamped to the mast by a metal bracket, like in the image, but the weight was carried by what? The topping lift? and maybe a chain if fitted? (a version of the 1890 graphic at the bottom is something that I see often)

    2> A battleship armoured Conning tower: has anyone ever seen the door to these things? What's the door handle like? If a CT has walls of 6-12 inches, the door must also be of armour thickness. I picture a door handle like a safe but I'm not sure this is right. Yet an ordinary door handle doesn't seem right either.

    3> The WW1 era RN twin 24" searchlight mount, this is the battlecruiser Tiger. There was at least 3 designs of the twin mount in use, all by different manufacturers. Has anyone got a clear image of this one? I can't fix how the lamps were attached to the pedastel nor how many axis they turned?


    p.s its for a model I'm taking pains to get right

    Attached Files:

  2. Under the correction of members who know about rigging...perhaps the jackstay on yards fitted to non-sail bearing ships would have helped to stop the yard from drooping? Not very convincing, but the best I can think of!
  3. Wild guess.

    To give jolly 'Jack" tar, something to hang onto when traversing the yardarm. Even a safety line in modern warships would require some sort of rigging line for the safety of personnel!!

    Guess over.

    Waits to be marked out of ten!!!!!!!:thumbdown:
  4. From online dictionary


       /ˈdʒækˌsteɪ/ Show Spelled[jak-stey] Show IPA
    noun Nautical . 1. a rod or batten, following a yard, gaff, or boom, to which one edge of a sail is bent.

    2. a rail for guiding the movement of the hanks of a sail.

    3. a transverse stay for stiffening a mast having a gaff sail, coming downward and outward from the head of the mast, passing over a spreader at the level of the gaff, then inclining inward to the mast again near the foot.

    4. jack rod.

    5. also for clipping on safety lines

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