Mudkip - repost - now that really pissed me off

[V12]

- * - * - so it has come to our attention that you are interested in mudskippers - * - * -

Cutting the land with millions of wide and narrow rivers, water offers the only mode of transportation in Vault 10 territory, apart from flight. With efficient transport routes comes the danger, and, being much harder to control than airspace, the Vault 10 river network is a true blessing for all criminals.

With more and more advanced technologies in the hands of crime, Aerospace Logistics Corporation has to always be ahead in the race. The latest addition to the internal fleet, Mudskipper class hydroplane, integrates the latest of naval technologies with efficient aerospace-based design, to secure advantage in the internal and littoral waters, while being able to keep up with blue water navies as well.


[ Cross-section.
http://www.freewebs.com/vault_10/Mudkip30.png ]


The primary materials in hull structure are carbon fiber reinforced polymer composites. An exception to that is the lowest part of the bottom, which experiences heavy slamming in high sea states, and possibly heavy hits with underwater rocks or the surface on small waterfalls, so is constructed of highly durable alloy to avoid the risk of cracking.
Hull sides and top are built with a polycomposite material, consisting of high-strength polymer matrix, carbon fiber reinforcement, and small metal, ceramic and fullerene particles. Apart from necessary strength, this structure provides radar waves absorption at certain frequencies, and, around the cabin, projectile-eroding protection against small arms.

While in general the size of the vessel precludes efficient damage control, automated fire suppression systems and compartmentalization allow the Mudkip to resist most attacks. Low-flammability materials and decoupled structure contribute to this capability. The chance to survive a hit by heavy missile (100kg+ explosive) is less than 20%, but the chances considerably higher against light missiles, reaching 60% against a 50kg warhead and 95% against a 20kg warhead. Due to dynamic support, the vessel is efficiently immune to torpedo explosions, except for ones occurring in the immediate vicinity. The placement of modules at the sides serves as a form of armor, absorbing missile hits and preventing damage to the fuel tank.

Since the hull structure already provides all required stiffness, the hull plating is manufactured as a solid flexible sheet, rather than sandwich panels, thus avoiding the characteristic reflective grooves between them.
Four factors contribute to over an order of magnitude lower observability compared to semi-stealthy vessels: tumblehome shape as opposed to compromise seen on Visby; lack of protruding parts and absolutely any inward angles; structurally embedded radar absorption; and, finally, extremely low profile, measuring less than 5 meters above the water.


Side and top views.
http://www.freewebs.com/vault_10/Mudkip31.png


Extreme speed of the hydroplane requires appropriate protection against slamming, provided by alloy double bottom and flexible vibration-absorbing mounts for all equipment, including the pumpjets. Apart from allowing for high-speed travel, abrasion-resistant bottom, high engine power, and controlled lifting force let Mudkip to pass with minimal issues through any river which is at least 1m deep within 6m and at least 16m wide overall. Shallower or slightly narrower passages can only be passed at low speed and with extreme care.


In compliance with the VTS-105 Addendum 3, ratified in Vault 10 in February 2005 and canceling the military exceptions to the fossil fuel restrictions, the Mudskipper class operates on hydrogen-based fuel. The vessel can use either standard medium purity hydrogen, derived by electrolysis using geothermal and nuclear power, or HCH90 fuel mixture, consisting 90% of hydrogen and 10% of methane produced by capture of carbon dioxide and synthesis with hydrogen. The tank is divided into 8 full-pressure compartments, and surrounded by damage protection zone, which ensures that in case of hit, only one compartment is compromised.

The fuel is turned to motion by one of the two options. Respectable and trustworthy partners may order two Symmetriad Linus-IV turbines, which provide up to 5000kW of power and 55% efficiency within 60%-80% range, and Symmetriad Camilla-II composite flow pumpjets with 90% efficiency at full power. In case this equipment is not available to the particular customer, or the cost of Symmetriad equipment seems excessive to him, the vessel can be equipment with industry standard NCR Heavy Industries MTH-4000, 4000kW turbines with 45% efficiency at 70%-80% load, and MJS-E6 75% efficiency axial flow waterjets.

When loaded with the full load of sixteen tonnes of HCH90, the high energy density of the fuel allows the turbines to run at full power for 28 hours. At 60% power, the turbines can work on one load for 60 hours, providing the vessel with Symmetriad powerplant with over nine thousand kilometers of range in river or littoral environment.


The basic hull of Mudskipper carries no armament at all. Instead, sixteen "units" are provided for the installation of modular equipment. Standard 1U module measures 2.00m in length, 2.78 in width and 4.45 in height. Out of these, 0.2m in height is taken by vibration absorbers, and further 0.1m left reserved. The nominal unit size is, therefore, 2.0x2.75x4.0, leaving certain headroom.

The weight per unit is restricted to 4t maximum, and no more than 2.5t average, with 40t limit for all modules. Nominal expected unit mass is 2000kg. Appropriate modules can be designed and built by the manufacturer or by the customer.
Modules can be, and usually are double-sized, 4.0x2.75x4.0m. Quad-sized and full-sized modules (8U) are also possible, at a compromise in compartmentalization.


Examples of armament that can be installed into a module include:
Single module:
- 24x MLSA-10 MANPADS in VLS, with a dedicated IRST system
- 6x any SAM up to 150kg in weight, with a dedicated IRST system
- 1x open manned dual M2HB .50BMG machinegun mount, retractable
- 1x 25mm/L60 autocannon, manned, in stealth turret, with 3,000 rounds
- 1x 30mm/L50 autocannon, unmanned, in semi-stealth turret, with 2,000 rounds
- 6x MLSS-21-250 anti-ship missile, in peripheral VLS cells (no control system is included)
Double module:
- Missile control system with tracking radar
- Extended-range OTH detection radar
- 1x 63mm/L50 autocannon, unmanned, non-stealth
- 1x 50mm/L60 autocannon, manned or unmanned, in stealth turret
- 6x MLSS-21-315 anti-ship missile, in peripheral VLS cells

Modules are numbered as 1L...8L and 1R...8R, for each side, starting from bow.



Basic specifications.

Mass:
- Hull and equipment: 40,000kg...44000kg
- Fuel: 14,000kg of hydrogen...16,000kg of hydrogen-methane mix
- Personnel and supplies: 4000kg...5800kg depending on endurance
- Modules: 32t (up to 54t)
- Crew and supplies: 2t (up to 6t)
- Total displacement: 100t normal load, 120t high load
Length:
- Waterline: 25..27m static, 5..16m dynamic
- Overall: 32.0m
- Main Deck: 21.0m flat, 26m overall
- Second Deck: 25.0m
- Fuel tank: 18.00m
Beam:
- Waterline: 14.0m
- Overall: 14.0m
- Main deck: 12.75m
Draft:
- Static: 0.50m..0.75m
- Dynamic: 0.25m..0.60m
- Ballasted: up to 2.0m
Height:
- Hull: 5.75m
- With antennas: 7.25m
- Normal clearance: 6.5m
- Ballasted clearance, fresh water: 5m
- Ballasted clearance, salt water: 5.5m
- Minimal clearance (compatible modules required): 4m

Speed (Symmetriad powerplant):
- Planing mode entry (Fr=1.4): 9m/s
- Low Cruise (Fr=3.0): 20m/s
- Cruise, calm water: 50m/s
- Cruise, sea state 4: 35m/s
- Sprint, calm water: 75m/s (at normal load)
Speed (NCR Heavy Industries powerplant):
- Planing mode entry (Fr=1.4): 9m/s
- Low Cruise (Fr=3.0): 20m/s
- Cruise, calm water: 40m/s
- Cruise, sea state 4: 32m/s
- Sprint, calm water: 56m/s
Range (Symmetriad powerplant):
- At cruise speed, calm water: Over 9000km
- At cruise speed, sea state 4: 8200km
- At sprint speed, calm water: 5500km
Range (NCR Heavy Industries powerplant):
- At cruise speed, calm water: 7200km
- At cruise speed, sea state 4: 5500km
- At sprint speed, calm water: 3300km
Crew:
- Minimal: 4
- Standard: 6, up to 8 depending on modules
- Transported personnel: up to 192, with 16 crew transport modules and 2 crew support

Modules: Designed on request
- Module width (beam): 2.75m
- Module height: 4.00m
- Module length, single (1U): 2.00m
- Module length, double (2U): 4.00m
- Weight, single: up to 2,500kg standard, up to 4,000kg overload
- Weight, double: up to 5,000kg standard, up to 7,000kg overload
- Weight, combined per side (8U): no more than 20,000kg

Cost:
- Empty, with NCR powerplant: $25 million
- Loaded, with NCR powerplant: Typical $40 million, depending on modules used

- Empty, with Symmetriad powerplant: $35 million
- Loaded, with Symmetriad powerplant: Typical $50 million

Export policy:
Mudskipper Class is a level 1 limited sale product. It will be exported with minimal restrictions.

[V12]

Protection measures


APAML

High-speed crashes have been the second most common KtB cause in the ALC Riverine Fleet for a long time. Only 15 years ago the solution was found: PAML, Pilot Analysis Mini-Laboratory, which proved to be among the greatest mankind's inventions, saving thousands of lives and boats yearly. Being even more dangerous due to its speed capabilities and firepower, the Mudskipper follows up on the trend, introducing Advanced PAML, enhanced with last-generation medical technologies.

To allow the vessel to accelerate above the "low cruise" speed setting, the pilot has to breathe into a vent in the control console. Upon receiving the gas mixture, APAML conducts a rapid chemical analysis, verifying it to be actual fresh breath and indicate no more than 0.1% of blood ethanol level. The 35m/s (68 knots) in open water or 25m/s (48 knots) in riverine environment safe stop limit can only be exceeded with less than 0.06% alcohol in blood. The system is also capable of detecting a multitude of other recreational drugs, setting alcohol equivalent for each. Apart from regular check, a separate sensor constantly monitors alcohol level on the command deck using bleed air from the ventilation system.

Multiple systems are linked to assist in pilot condition analysis. The main computer's retinal scanner transfers the received data to the APAML for detection of unusual pupil behavior. All internal surveillance cameras conduct image recognition for detection of alcohol/drugs consumption, fornication, and explicit unsteady behavior. The automated mini-medlab blood analysis system, mainly designed for poison and infection control, is capable of detecting alcohol and recreational chemicals as well, and its use can be demanded by the APAML if there's uncertainty about crew condition. Finally, all APAML sensors are integrated with the shipboard NBC protection system sensors. All the data are analyzed to weigh the decision about pilot's suitability to control the high-speed hydroplane.

In all cases where the alcohol level exceeds 0.03%, the collision protection system is automatically activated and can't be overridden locally. As soon as predicted collision risk becomes considerable, speed is dropped and steering used to avoid it, regardless of pilot actions.

On most of Aerospace Logistics vessels the company policy also makes mandatory the installation of complete compact medlab. Taking one half-height unit of space (7 square meters) it allows not only for semi-automated treatment of the crew members, but also for more thorough analysis. The medlab incorporates Special Weapons Control Panel, to use which at least 2 crew members should be confirmed to have no more than 0.02% blood alcohol content or equivalent drug content. Once this is proven, the control panel becomes accessible, allowing activation of nuclear-tipped missiles and torpedoes. If the crew's alcohol or drug intoxication level is higher, nuclear weapons can only be activated if authorized remotely by a commander or higher ranked officer.


Damage Localization

Being a small vessel, Mudskipper has no weight for armor and no ways to entirely stop the projectiles. To give it a degree of protection, all equipment is placed in peripheral modules, which act as a form of spaced armor. Since the chance of being hit anywhere but the main hull section sides or upper-side part is small, most times the damage is limited to 1-2 modules.

While the vessel isn't supposed to continue full-scale operations after taking a major hit, the damage control system allows for emergency launch of remaining ammunition and crew evacuation in all reasonable damage cases in blue water combat, and often even getting the boat to a port or a rescue/salvage vessel. In riverine and littoral combat against boats and ground-launched munitions, the damage resistance is of far greater importance, giving Mudkip additional advantage when it comes to close fight. Low packing density plays a major role in this: while a tank-fired APFSDS would go through the hydroplane without even slowing down considerably, the energy delivered would also be small, and so the damage.

In such cases, damage tolerance matters, and the vessel is designed with it in mind. A particular point of vulnerability being the fuel tank, it had to undergo significant internal compartmentalization. The whole tank consists of the inner and outer pressure vessels, intertank space insulated by aerogel and compartmentalized with silica inserts. The tank is split by 4 full-pressure main transverse bulkheads, going through all hull, and 6 auxiliary within the inner tank - vertical, horizontal and 4 transverse, which can only take the pressure of fuel evaporation within 1-4 hours depending on damage severity. They rely on the fuel system to clean them from bleed hydrogen: each of the 32 tank compartments has a separate valve, and, as soon as one is damaged, the fuel system nearly closes all valves in intact compartments and drains only the damaged cell(s).
Having the highest heat capacity of all substances, hydrogen in one cell absorbs over 100MJ of heat in evaporation and further over 1600MJ in heat exchange - enough to freeze the entire vessel well below zero Celsius. Due to internal insulation, it only freezes the leak-suffering compartment and making any ignition highly improbable. To use that further, as soon as leak is detected, the fire extinguishing system completely seals off the compartment and starts to supply it with nitrogen, displacing air outside. Water valves are opened to spraying, to cover both the damaged fuel cell and possible spark sources with ice. If the severity of the leak makes it necessary, hydrogen can be quickly drained from the damaged compartment and dumped overboard.

For the cases where damage tolerance matters, fuel tank self-sealing system can be installed, consisting of two parts: conventional self-sealing elastic layer within the outer cylinder, and capillary fabric with thin pipes, carrying water and covered with a special composition. Once the fabric is torn and some pipes are damaged, the water pours out in the damaged zone and floods both the section of intertank zone and outer part. Evaporation of liquid hydrogen solidifies it, forming a patch of stiff fiber-reinforced ice, a sort of carbon fiber based pykrite, based over the elastomer layer and remains of the tank structure itself. This protection level is capable of closing even significant hits as long as they don't break the tank. Installation of the self-sealing system incurs weight increase of 2500kg.


Crew safety

For further crew safety, the vessel's control room is equipped with zero-zero ejection seats, which can eject a crew member in a fraction of a second. If the shipboard radar and computer predict overall missile hit probability above 75%, or crew-injuring hit probability over 10%, the occupied seats fire off automatically in sufficient time before the hit. While also capable of working against collisions, this system is set not to react to them, apart from wartime, to prevent boat losses from reckless piloting.

[V12]

An update of the project. Most modules still in development yet. But I've talked to a couple of guys from DARPA and learned how to squeeze out a little more out of it.

First of all, I've earlier accounted for 1980s carbon fiber reinforced plastic. A good improvement was done since then. Saved a few tonnes, but I didn't lighten the Mudskipper, though - I just don't like the hull to be too light, it's bad in certain aspects. Instead, I've increased its size, so now there's more of it to liek.

http://www.freewebs.com/vault_10/Mudkip30.PNG
http://www.freewebs.com/vault_10/Mudkip31.PNG


Fuel tank got tensile domes on the ends, which are lighter and stronger, though take some of the space gain.

Improved compartmentalization and added aft protective space for the fuel tank. Increased its size to give more power to the new waterjets and turbines, the latter moved to the bow compartment.

Installed larger, more efficient and quieter waterjets, in the aft section. Instead of directly turbine-driven waterjets, they are now rim-driven electric.
Pump sections are based on Rolls-Royce Kamewa S-71 and partially AWJ-21. Kept them a bit larger, but at reduced weight, as: 1) they don't have the complex 90-degree 3D thrust vectoring like the Rolls-Royce ones; 2) lighter materials are used - S-series are for big ships and so made of steel, while this is already a CFRP boat, so it's OK with light alloys and carbon fiber. Simple 30-degree 2D vectoring is retained. Increased power of new jets allows for increase in top speed from 68 to 75m/s, although other speeds are subject to hull and wave limitations.

Module size increased. There's less free space left, though, so the modules might use some of their space for communications if they're not OK with the standard package of electricity, water, steam, pressurized air.
Not only that, but there are more modules now. 18 instead of 16. Note that these extra two are supposed to give you more choice in crew housing and aux equipment, not pack in more guns.

New feature - there's the central drain pipe going right to waterjet intake, so they can pump the water out of any compartment, eliminating the need for separate drain pumps. And they can do it very fast - one fully flooded module can be drained in 8 seconds. Conversely, the firefighting system takes about the same time to fully flood a module. The effect on stability is better not mentioned, but on the other hand counterflooding can be near-instant, and the boat can sail full of holes as long as there's fuel for the jets. Technically, in planing mode it barely touches the water, so could anyway, but now it's more reliable.

The drunk bastard Seaman Mitchell thrown overboard. Don't worry, he won't drown, since it's still in the dry dock.

Finally put the characteristic fin on top - the radar. Now, a challenge to all you Mudkip liekers: think of a use for the characteristic side fins.

[V12]

Weight breakdown. All data match the hull model used in the analysis of the hull, rounded up. I've increased hull strength reserve (and so weight) from the previous draft, to allow for higher sea state and mounting of artillery.

For the reference of skin strength, take a good 0.75" board of Lebanon cedar, 1" of oak, or 1.5" of softwood. These materials were used for building seagoing vessels of similar displacement. That applies to bending and compressive strength; by tensile strength, 4mm match an inch of steel or half a foot of wood, but unfortunately it doesn't matter as much. Compared to wood or steel, the skin is less stiff, allowing for more bending.


Weight breakdown.

1. Hull.

1.1. Plating.
1.1.1. Skin, main hull: 680m^2, thickness 5.0mm, carbon fiber reinforced polymer composite (1.40g/cm^3) - 4500kg
* Protection against 7.62x39, heavier rounds at long range and oblique angle
1.1.2. Structural armor, control deck: 115m^2, thickness 10...16mm, carbon fiber reinforced, fullerene infused composite (1.4g/cm^3) - 2000kg
* Protection against .50BMG and CL8-63 (R1)
1.1.3. Transverse bulkhead plating: 6*20m^2, thickness 2.0mm, CFRP (1.35g/cm^3) - 320kg
1.1.4. Longitudinal bulkhead plating: 60m^2, thickness 2.0...2.5mm, CFRP (1.35g/cm^3) - 180kg
1.1.5. Second deck plating: 140m^2, thickness 3.15mm, CFRP - 600kg
1.1.6. Light bulkheads plating: 80m^2, thickness 1.6mm, CFRP - 120kg
1.1.7. Reinforced bottom plating: 180m^2, thickness 5.0mm, carbon nanotube reinforced Al-Li alloy, CFRP plated (2.10g/cm^3) - 1800kg
1.1.8. Main bottom plating: 200m^2, thickness 4.0...5.0mm, CFRP - 1250kg
1.1.9. Second bottom plating: 280m^2, thickness 2.0mm, CFRP – 750kg
1.1.10. Armor glazing: 16m^2, thickness 20mm, aluminium oxynitride (3.7kg/m^2) - 1200kg
* Protection against .50BMG and CL8-63 (R1)
1.1.11. Radar-absorbent glazing: 24m^2, Jaumann absorber using aluminium oxynitride, polymers, thin films - 200kg
* Includes "Chameleon" layer, darkening in presence of high-intensity IR/visible/UV light or laser radiation
Total 12800kg.

1.2. Structure.
1.2.1. Hull web structure: 800m^2, thickness 2.5mm, CFRP - 2700kg
1.2.2. Bulkhead and deck structure: 170m^2, thickness 2.0mm, CFRP - 450kg
1.2.3. Additional stiffeners: 50m^2, thickness 1.6mm, CFRP - 100kg
1.2.4. Structural joints: 650kg
Total 3200kg.

1.3. Outfitting.
1.3.1. Paint: 20kg
*Most of the hull is unpainted, to improve material radar-absorbent effect. Thin camouflage film can be used instead.
1.3.2. Camouflage film: 0.1mm, 900m^2, 150kg
1.3.3. Door elements: 200kg
1.3.4. Crew spaces outfitting and insulation: 200kg
1.3.5. Railings: 50kg
1.3.6. Fittings: 160kg
1.3.7. Miscellaneous: 70kg
Total 900kg.

1.4. Fuel tank.
CF variant:
1.4.1.A. Shell: 220m^2, thickness 10mm, carbon fiber reinforced plastic (4000 MPa rated tensile strength, 1.50g/cm^3) - 3300kg
Operating pressure 5 MPa (50 bar, 720 psi), maximum pressure 16 MPa (160bar, 2300psi).
Strength reserve at max pressure 45%. Automatic valve discharge at 50% max pressure.

ACF variant:
1.4.1.B. Shell: 220m^2, thickness 8mm, advanced carbon fiber reinforced unidirectional polymer-matrix composite (11500 MPa rated tensile strength, 1.25g/cm^3) - 2150kg
Operating pressure 10 MPa (100 bar, 1440psi), maximum pressure 35 MPa (350bar, 5000psi).
Strength reserve at max pressure 50%. Automatic valve discharge at 60% max pressure.

1.4.2. Second shell, bulkheads, stiffeners, joints: 400m^2, variable thickness:
1.4.2.A. CFRP – 1200kg
1.4.2.B. ACF – 750kg
1.4.3. Supporting insulation: 220m^2, thickness 125mm, high-density silica nanofoam, evacuated (0.01g/cm^3) – 280kg
1.4.4. Non-structural insulation: aluminized polymer film, aramide fireproofing - 150kg
1.4.5. Tank integrated systems: 170kg
Tank total: 3500kg ACF, 5000kg CF

Note that it might be not advisable to use the second tank variant (ACF is a more modest name for carbon nanotubes) if you're playing strict MT. Better spend extra 1600kg and keep in mind the fuel boils off twice sooner if not used. Normal CF tank is current (~2000) technology. The ACF needs yet a few years to become well affordable. I'm using it just because, well, I've decided to play by common rules and not self-imposed strict MT ones. Also, ACF tank will incur $4 million premium, because in April 2007 ALC equipment shipment was pirated, creating a shortage.

P.S. If I design a successor, it will have multi-tank design. That's because I'm fed up with running around that huge tank just for weight economy.

Hull total: 22,000kg (CF tank), 20,500kg (ACF tank)


2. Equipment.
2.1. Auxiliary pumps: 400kg
2.2. Automated bulkhead sealing: 100kg
2.3. Safety and rescue equipment: 400kg
2.4. Fire suppression: 200kg
2.5. Auxiliary storage and tankage: 160kg
2.6. Freezer, galley, waste disposal equipment: 250kg
2.7. Crew amenities: 150kg
2.8. Ejection seats:
2.8.1. Control deck: 8x Symmetriad Acetes III, 90kg - 720kg
* Zero-zero ejection seat, max human weight w/armor 150kg, 10g normal, 16g maximum, capable of breaking the control deck roof (bullets used to prefracture). Electronically controlled with 0.005 second reaction time. Adaptive shape, health monitoring embedded.
2.9. Medical equipment (without medlab): 100kg
2.10. Exercise/sport equipment: 70kg
2.11. Other equipment: 180kg
Equipment total: 2800kg.

3. Systems.
3.1. Water piping: 620kg
3.2. Steam piping: 310kg
3.3. Pressurized air piping: 220kg
3.4. Ventilation: 160kg
Systems total: 1400kg.

4. Propulsion.
4.1. Turbines.
4.1.A. 2x Symmetriad Linus IV hydrogen-fueled turbogenerator – 2x1500kg
4.1.B. 2x NCR MTH-4000 hydrogen-fueled turbogenerator - 2x2250kg
4.2. Waterjets.
4.2.A. 2x Symmetriad Camilla II – 2x750kg
4.2.B. 2x NCR MJS-E6 – 2x1000kg
Propulsion total: 4500kg (Symmetriad powerplant), 6500kg (NCR Heavy Industries powerplant)

5. Electric systems.
5.1. Power transfer: 350kg
5.2. Refiners and converters: 150kg
5.3. Waterjet control unit: 200kg
5.4. Galley and crew amenities electrics: 150kg
5.5. Other electrics: 50kg
Electrics total: 900kg

6. Electronics.
6.1. Control panels, monitors: 400kg
6.2. Cabin glass display: 200kg
6.3. Processing systems: 600kg
6.4. Auxiliary electronics: 100kg
6.5. Other electronics: 50kg
Electronics total: 1200kg

Subtotal 1-6 (dry mass):
34,000kg standard - CF tank, Symmetriad powerplant
32,000kg with ACF tank
36,000kg public released CF tank version with NCR H.I. powerplant

7. Supplies.
7.1. Technical water: Desalinized, tankage 600L - 600kg
7.2. Clean water:
7.2.1. Produced from turbine exhaust, tankage 100L – 100kg
7.2.2. Drinkable, specially filtered, tankage 100L – 100kg
7.3. Food.
7.3.A. Low endurance: 2kg/man/day, 6 men, 30 days endurance – 360kg
7.3.B. High endurance: 2.5kg/man/day, 6-8 men, 90-120 days endurance – 1800kg
*Notice. High endurance assumes external hydrogen fuel resupply.
7.4. Beer.
7.4.A. Low endurance: 0.5L/man/day, 5 men, 30 days – 90kg
7.4.B. High endurance: New Reno Wright Family “Seaman 3” naval mini-brewery, up to 5L/day - 200kg
7.5. Brewing supplies: 120 days - 120kg
7.6. Medical.
7.6.1. Long-term/emergency: 100kg
7.6.2. Average consumed: 0.5kg/day, 120 days – 60kg
7.7. Other.
7.7.A. Low endurance: 90kg
7.7.B. High endurance: 220kg
Supplies total: 1200kg low-endurance, 3000kg high-endurance

8. Personnel.
8.1. Crew: 75kg/person - 600kg
8.2. Body armor, combat: Heavy Crew Armor, 30kg/person – 240kg
Bullet protection of torso, high explosive and fire protection, full environment control, positive buoyancy.
8.3. Body armor, cruise: Class II Flak Jacket - 5kg/person – 40kg
8.5. Uniforms and apparel: 40kg/person – 320kg
8.6. Armament: R1, ammunition, MLSA-10, other armament, 25kg/person – 200kg
8.7. Personal equipment (fixed): computer, audio equipment, appliances, 60kg/person – 480kg
8.8. Personal property (movable): 40kg/person – 320kg
8.10. Crew common property: 300kg
8.11. Additional property:
8.11.1. Captain/Commanding officer: 110kg
8.11.2. First Mate/Executive officer: 50kg
Personnel total: 2200kg low-endurance, 2400kg high-endurance


9. Fuel and lubricants.
9.1.A. Fuel, hydrogen, normal: 14000kg
9.1.A. Fuel, hydrogen-methane mixtures, max: 16000kg
*Used only on high-endurance missions
9.2. Liquid lubricants, max: 100kg
9.3. Solid lubricants, max: 50kg
9.4. Cleaning fluids, max: 50kg
14200..16200kg total


Complete weight w/o armament modules:
Advanced, low endurance – 50000kg
Advanced, high endurance – 54000kg
Basic, low endurance – 54000kg
Basic, high endurance – 58000kg

[V12]

"Liek? I luuuv mudkips!"
"So, would you ever *love* a mudkip, that is, insert a long thick cylindrical device into the mudkip's aft, of course..."
"Fvxk yeah!"



Great thanks to Hogsweat for helping to give Mudkip the image.

http://i221.photobucket.com/albums/dd172/H...an/MSkipper.png


And, of course, it's updated to Version #34. That's the final update. It's 34m long and weighs 34 tonnes empty.*
It also features a lot of improvements for weight savings and not only, such as a beer mini-brewery in high endurance setup.

And, of course, the crew amenities on Mudkip leave almost nothing to be desired even by the highest standards for a warship. Each crew member has own cabin, which range up to as high as 10m^2 for the captain. While quietly and rapidly delivering the payload with stunning efficiency in a war, it also provides a lot in the peacetime.

There's, of course, also a less glamorous utility to these crew spaces - whenever something bad happens at sea, Mudskipper, 3 times faster than even the best of displacing warships, and not much slower than helicopters, will most times be the first to come. On such occasions, a few of these boats will easily rescue the crew of a large warship.
Note that the crew spaces carry about the same armor as the control deck, not much, but enough to take /b/tards with anti-materiel rifles and jeep M2 machineguns, in riverine and close littoral combat. No, it's not for SEAL insertion - even if stealthy for the radar, it's not as small as to hide from the eye - but marines would like it. Besides, it can work as a landing craft, not as good as hovercraft in entering the beach, but incomparably quieter and stealthier, similarly mine-resistant, and sufficient to get marines to 0.8m where they can walk the bottom. Though it's expensive for that role, but one doesn't build it just for that, it simply helps.

No ready modules today, so not yet the time to fear the Mudkip. You'll realize eventually that Mudkip feels herself in a sea of large ships just like F-22 in a sky full of Stratofortresses, but everything has its time.



// *One might wonder, is that a coincidence. No, not really. The trick is that same things can count as empty weight and load, i.e. crew quarters furniture and safety equipment (liferafts) can be either - so I just shifted them to get the figure.