#91
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We were discussing arming a SAILING ship to either protect one's self from pirates or for war using available equipment. The weight requirements were for mounting "old school" armaments that could be fabricated or commandeered for a sailboat, NOT a freighter or tramp steamer (which seems to be what you were referring to). A centerline gun mount WILL NOT WORK on a modern sailboat. This is because the Bermuda Rig (with its angled head sail and angled main sails which will often overlap) REQUIRES a certain size of head sail (depending on wind conditions) in order to "balance the helm" (maintain control and enhance handling) at speed. ANY centerline gun mount would interfere with the movement of the head sail and induce "weather helm" during maneuvering. The weight limits I posted were for "old school" black powder cannons and newer reproductions that could be lifted from museums or collectors and mounted on the decks EXACTLY like they were in the age of sail...on free rolling carriages that were restrained by rope "recoil arrest" & "run out" assemblies. Because these guns can "roll back" upon recoil, they WOULD NOT transfer that recoil into the deck plates (as demonstrated by the very small ships mounting such guns during the Age of Sail). Let's take the Brigg Niagara (which WallShadow and I were discussing at the time) as a "for instance..." She is 110 feet long and mounts 18 32 pounder Carronades (at 900kg each) and 2 12 pounders (at 1500kg each) with NO DIFFICULTY in handling recoil. The ship is no more heavily built than say, PlayStation II (a 125ft modern Catamaran) in its deck area. PlayStation II would have NO DIFFICULTY mounting Niagara's weapons fit on her decks. The only thing I WOULD do is mount the recoil ropes to the cleats or stay mounts (NOT THE RAILINGS) to prevent a cannon from crossing the deck and heading for "Davey Jone's Locker" through the opposite side railing during firing. Another thing you might want to do to a modern sailboat is to glue some plywood to the deck to prevent gouging up the fiberglass too much. Otherwise, there is no reason a modern sailboat couldn't mount old school cannon on deck. Other "real world" examples of "recreational vessels" pressed into service exist in our world right now. Just look at Iran's speedboats in The Gulf. They are "off the rack" Sea Rays complete with THE SAME commercial Raytheon radar/navigation suite that Sea Ray offers to boaters all around the world upgunned with remote fired RPGs (in racks of 8), 2 torpedo tubes, or (more recently) quad wire guided AT missile launchers on the foredeck and HMGs or Autocannon in a rear AA mount. They even have Sea Ray's commercial bow mounted spotlight. These boats are functionally IDENTICAL, except for the weapons of course, to the same boats rich people use in the Med, Bahamas, or Florida. These boats were so effective at causing harm to shipping during the Iran-Iraq war that the US Navy began escorting merchant ships through the Straits of Hormuz. They work. |
#92
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The Light Armored Car: These are built on a Dodge, Chevy or Ford 1-Ton van or truck chassis and are in fact too light (and too small) to endure a long service. These are often armored with Kevlar panels to reduce weight and are either NIJ Level 2A, 2 (AV 1/2 in my game) or Level 3A (AV 1). These are designed to carry only 1 Ton of cargo and are OFTEN OVERLOADED (because coin boxes & bags weigh a lot). They average a life of about 7 years and 300,000 miles. The current "darling" of the "Light Weights" is the Sprinter Van in both single and double axle varieties. I HATE Sprinters! The low deck height is nice but they have a NARROW wheelbase (and width) coupled with a HIGH center of gravity (due to the stand-up interior). They EAT tires and brakes (and its no wonder with 13" tires and 10" brakes on a 1-Ton cargo van) and the 4 cylinder diesel sounds like it will blow up at any minute at highway speeds. Electrical issues also plague them (just like Dodge). The General Purpose Truck: This truck is often referred to as The A-Body because that's what Brinks calls them (and therefore so does everyone else). The Dunbar Truck that rescued the wounded during the LA "44 Minute Shootout" was a second generation A-Body (5-speed auto, open layout). For those who would question the protection provided by Armored Cars... that truck "shrugged off" EVERY 7.62mm X 39 mm round fired at it (including the windows AND the run-flat tires). The truck in The Book of Eli was a gen 1 A-Body (5 or 6-speed manual). The A-Body is Aluminum armored to NIJ Level 3 Rifle (AV 2 in my game) two axle truck (front and rear) built on THE EXACT SAME FRAME AS A US ARMY FIVE TON TRUCK (school buses use this frame as well). The truck uses hydraulic brakes with dual coil suspension and can carry 5000lbs (2.5 Tons) on a 26,000lb gross curb weight. Early models were 5-speed manuals but 5-speed automatics have prevailed since the 1990's. This truck comprises 95% of the US armored car fleet and is the largest truck in service that you DO NOT need a CDL to drive (you DO need a medical card though). The service life of these trucks (90%+ are diesel) is 500,000 miles or 6 years to "in frame overhaul" (a top engine rebuild) and 1,000,000 miles to complete rebuild. The B-Body: These were just a CDL-B upgrade of the A-Body adding Air Ride Suspension and Brakes, increasing cargo load to 5 tons (10,000lbs) and, on occasion, stretching the body for increased volume of cargo. A fully loaded B-Body averages 52,000lbs Curb Weight. Several variants of this model are often "uparmored" to NIJ Level 4 (AV 4 in my game) and used as "Fed Trucks." Fed trucks haul money from the Fed to the Armored Car Company's Depot...this can amount to 10's of millions of dollars and requires added security to satisfy Lloyd's of London's (the only insurance company that insures armored cars) insurance requirements for the cargo's value. This was what we drove for a fed truck while I worked at Fidelity Armored. Heavy Trucks: There is no pattern to these trucks except that they usually have 2 or 3 REAR AXLES and can go as heavy as 80,000lbs Curb weight. These trucks are built on AM General, Oshkosh, or MAC frames and can go for 1,000,000 miles just like an ordinary Semi Truck. This is what I drove at Great Lakes Armored in the 90's (complete with 10-speed manual). As you can see, American armored cars are very "overbuilt." The issue is that the fleet nationwide was almost 7 years old when I retired in 2012. |
#93
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I was referring to Aussie models, which are not even close to the same standards, or weren't when I came across the original information ... and (dumb, I know), assumed it was the same for the US. Phil |
#94
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#95
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Modern sailing vessels, especially pleasure craft are absolutely NOT made to support that kind of peak pressure on a deck. Neither are their sides built with the kind (and frequency) of ribs for breach lines to anchor from; something like a 4-lbr cannon (much less a 6, 12 or 24-lbr) would tear the cleats or eyes out of the vessel when fired. Uncle Ted |
#96
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There is a real need for lights in some cities. An A-Body weighs about 12 tons loaded on average and is as big as an Army 5-Ton. That's a large truck for certain city streets and bridges (many of which have 10-Ton weight limits). There is a real niche for Lights (especially in Europe) in areas where streets are tight and road/bridge weight limits are low. |
#97
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I would agree that modern 21st Century boats WOULD have a problem because they are almost exclusively cored fiberglass boats now. A cored fiberglass boat has two layers of fiberglass with a layer of polystyrene foam between them for increased buoyancy. This type of hull would most definitely crack from the firing of a black powder cannon. These hulls only came into existence for larger boats during the first years of the 21st Century. Most Twilight Era boats would still be Plywood and fiberglass resin build. We are also not talking about Guns/Cannon. We are talking about Carronades which are shorter and lighter than guns. The 10 6lb Carronades which were mounted on Constitution's spar deck only weighed 170kg EACH with attendant carriage. I have seen these guns mounted on modern (for the 90's) 60 foot sailboats made of 4-ply Marine plywood coated with fiberglass in the Carribean as curios and "signaling guns. A few of these Carronades have even used by modern boats in mock battles down there. No carronade ever crashed through a deck during such an event. So success would depend on the boat AND the armament in question. I suspect that the issue you brought up is precisely the reason that Carronades outnumber Cannon 3 to 1 in the US and Carribean. They were lighter, cheaper, and easier to cast. |
#98
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#99
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The real world schooner should list an "acceptable deck loading" (weight the deck can hold). For instance, the deck loading for my sailboat is 100 kilograms. |
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