DESIGN AND CONSTRUCTION OF THE FLOTEL - THE CARP ARKThis is a featured page



  1. OVERVIEW

The Flotel is named Carp Ark. An ark was an early pioneer flat bottom river boat. 1

It is the craft for entire crew membership for living quarters. The Carp Ark provides room, food service, recreation, learning, and other needs to the crew and provides space for offices, storage, laboratory, machinery, navigation and communications. It is configured as a “B” barge insofar as tandem connection to the Carp Avenger (“A” barge), power and utilities in case those utilities fail on on either boat.
The Carp Ark is propelled by four, 250 hp direct drive DC electric motors mounted in four gondels, two of which are hung under the bow and two of which are under the stern. 2 It has quarters on the second and third decks, a salon on the fourth deck behind the wheel house/bridge. Catwalks port and starboard of the bridge allow for direct observation along side . The salon is large enough for a conference room and the digital keyboard for the Calliope. The aft portion of the fourth deck is an observation deck, the roof of which supports sets of thermal energy collectors.
The rooms are motel sized, about 16' x 16', with a full bath. Clean potable water is provided for the sanitary services and drinking water is provide by reverse osmosis and UV charging. Gray water is recycled and black water is cycled through an on-board sewerage treatment facility with sludge removed to a dock-side tanker truck.
  1. HULL
The Flotel most likely will be built in Louisiana. The hull and deck will be of cypress and\or bamboo. Most members will be "I" beams made of engineered wood. We will avoid steel as much as possible and use stainless steel sheet or plate or aluminum castings only where needed.
    1. Size. The size will depend on the size of the crew. The Probable width is 44 feet and probable length is 180 feet, although we should try to reduce the length.
    2. Displacement. River depth may allow only for four feet of draft. Sand bars may pose a problem. We should consider mounting on the underside of the prow, a rotating cylinder with roto-tiller blades attached, to gnaw away any sandbar in our way. This cylinder would be mounted between two boom (port and starboard sides of the prow) which could be raised and lowered across the entire prow.
    3. Flotation and draft. While cypress is a rather dense wood (s.g. = 0.510), it is less dense than steel and would provide the bending resistance equal or better than steel. 2 It has has sequestered carbon which we are preserving for the life of the hull, which is probably 50 years if properly sealed and painted. Thus the flotation ability is several times that of steel.
      The hull will be about seven feet high, which we will assume will have a four foot draft and a three foot lee.
      In order to make the barge more sea worthy, after we install the inner planks, we will have polyurethane foam applied to fill the interstitial spaces, thus adding to the water-tightness of the hull and some thermal insulation to the interior of the barge.
    1. Prow and pontoon. The prow should ramp up to force the water to go under the craft. The center of the barge should have a “pontoon” about sixteen feet wide and with seven feet of headroom clearance. This pontoon will help in steerage and will serve as the mechanical room, plus add weight to the bottom of the barge. The added draft of this pontoon will be between one and two feet.
    2. Ribs, gerts, stringers, and keels. The bottom ribs will be 4” x 6”, spaced 4' O.C. And with the 6” upright. The gerts will also be 4 x 6, spaced 4' O.C. At each point of the connect between the gerts and the bottom ribs, we mount a post which extends to the main deck ribs. These posts are cut on each end to extend to the bottom of the bottom rib and the top of the top rib, so there is a 3 x 3 nested on all four inside corners of where the gert and the ribs meet. We use the same connection of the main deck ribs and the posts. We can bolt through these 3 x 3's into the ribs and gerts. Resorcinol glue is added for bonding and strength. Rather than use a solid post, we could use a fabricated post of four, 3 x 3's with spacers at the top, bottom and in between.
The posts would be bolted to the ribs and gerts. The joinder of the ribs and gerts are at right angles. In order to preserve the integrity of the ribs, we should consider using Ebony (s.g. = 900 - 1120) or Lignum Vitae (s.g. = 1280 - 1370) wood dowels of about one inch diameter. Two holes are drilling through the rib and into the end grain of the already in-place gert. Glue is applied to the hole and the pin, then driven through the rib into the end grain of the already-in-place gert. Then the matching holes of the new gert is placed on the end of the two pins, and driven onto the pins. The butt surface of the two gerts are glued to the rib. This system allows the posts to have a tight fit to the ribs and gerts. The pins are so placed so that bolt holes can be drilled through the center of the post 3 x 3's in both directions (gerts and ribs) without interfering with the pins.

      Stringers are use at all four major corners, along the length of the barge. Stringers should continuously run the length of the corners by using glued finger joints to join the ends. The stringers should be 4 x 4. A 4 x 4 pocket is made in the bottom and top ribs where they join the outside vertical ribs, to receive the stringer.


      The side hull ribs are a pair of 2 x 8's, mounted on the side of each end of bottom and top ribs. These will be notched to receive the stringer. The stringers will be installed using long stainless steel screws and Resorcinol. In addition we will use cast aluminum angle brackets to further secure the upright ribs to the bottom and deck ribs. Two by six gerts will then be installed, flush with the outside and inset as to the inside, thus allowing for angle brackets to attach the gerts to the vertical 2 x 8's. Further we should use toe screws along the 6 inch side, into the vertical outside rib.


      All of the wood should be pressure treated. Not sure because Cypress has an oil which is a repellent to worms and insects. The size is full size to the specified inches. Rough cut is OK; glue holds better on a rough surface. We want lumber with only small, tight knots for the outside planks; larger, tight knots for the inside planks are OK. We should have bottom and main deck ribs of one piece or else finger jointed and glued with Resorcinol.
    1. Keels. Two keels will be laid, on on each side of the pontoon. Each is about 8 inches wide and 24 inches deep and run the length of the hull. They will be glue-lam with Resorcinol glue, made from 1 x 8's with a running bond. At the prow, the gul-lam will turn upwards and be reinforced at the angle with additional courses of wood.
DESIGN AND CONSTRUCTION OF THE FLOTEL - CARP CATCHERS CO-OP
    1. Planks. Planking will be one and a quarter inchYour browser may not support display of this image. thick and edge milled with a reversible router. Planks are edge glued with Resorcinol and screwed with stainless steel screws to the ribs. The planks are also more elastic than steel, thus increasing the impact resistance. On the bottom of the pontoon, the first course of planks will run port to starboard. The second course will run for and aft. The screw holes for the second course will be plugged with cypress and Resorcinol. The main deck is 7920 sq. ft which will use one inch thick boards or a total of about 800 board feet. The inside bottom hull is the same. The inside vertical hulls are 180 x 7 x 2 = 2520 and the stern inside vertical hull is 44 x 7 x 1 = 308. The pontoon will be 2' x 180' on two sides = 360. The total of 7920 + 2520 + 308 + 360 = 11,108. The outside hull will be about the same but with 1.25" thick planks.
    2. Glue. Resorcinol is the two-part glue of choice.

        “DAP WELDWOOD Resorcinol Waterproof Glue is a high performance, two component adhesive designed to provide the strongest, most durable bonds in severe service application. Once cured, Resorcinol withstands continuous salt or fresh water immersion, outdoor exposure, tropical or sub zero temperatures.
    Your browser may not support display of this image. Your browser may not support display of this image. Your browser may not support display of this image.
DESIGN AND CONSTRUCTION OF THE FLOTEL - CARP CATCHERS CO-OP Battery operated dispenser
DESIGN AND CONSTRUCTION OF THE FLOTEL - CARP CATCHERS CO-OPShould come in Maxi-Tube A and Tube B
    DESIGN AND CONSTRUCTION OF THE FLOTEL - CARP CATCHERS CO-OP
    Mixing nozzle

    DAP WELDWOOD Waterproof Resorcinol Glue is designed to laminate structural wood beams, also provides durable bonds on a variety of porous and semi- porous materials such as wood, particleboard, leather, cork, concrete (cured) and crockery (unglazed)”
    1. Tools. Since we are building a box, standard tools and craftsmanshipYour browser may not support display of this image. should be sufficient. The edge router is a reversible tongue and grove available from Blades, LLC:
      Profile Product # Cutter Dia.
      A Cutting Length
      B Overall Length
      C Shank Dia. Price
      Reversible Tongue & Groove Router BitReversible Tongue & Groove Bit DimensionsWedge style shown
      Wedge
      Wedge Style       		BL1244 1-5/8" 1" 2-1/2" 1/2" $67.95
      Straight
      Straight Style       		BL1245 1-5/8" 1" 2-1/2" 1/2" 67.95
---------------------------------------------------------------------------------------------------------]
TOOLKING
http://www.toolking.com/products/50255388.aspx?shareasale=55388
DESIGN AND CONSTRUCTION OF THE FLOTEL - CARP CATCHERS CO-OP
  • Second piece is cut upside-down to the first for a perfect fit. There is no need to realign the router depth, provided that the wood is centered to the cutting edge of the bit.
  • Can be used on 5/8 through 1 material
  • 1/2 shank. Two flute.
  • Large diameter 1-7/8, small diameter 1-7/16, flute length 1-3/32
  • Overall length 2-5/8
-------------------------------------------------------------------------------------------------\
38706 Freud # 99-031 Reversible Glue Joint Bit, 1-1/2'' Dia. x 1-1/4'' H x 1/2'' Sh. Oversold
until Nov 2, 2009 		$70.49 Each

Application: Providing a stronger joint by increasing the surface area for glue
  • Plane boards to a uniform thickness; align bit to the center of the board, then reverse each board for a perfect glue joint.
  • Cuts all composition materials, plywoods, hardwoods, and softwoods.
  • Use on CNC and other automatic routers, as well as table-mounted portable routers.
    1. Lay-up.
      The pontoon is built up-side down. A series ofYour browser may not support display of this image. adjustable stands support the keels and ribs so the plane is flat. The stern rib is laid first and alignments maintained by a laser surveying instrument. Gerts and installed next and then "X" bracing. The pontoon bottom is double planked and the sides are single planked. The sides and bottoms are then sanded rough, sealed several times and painted several times with a high quality marine wood paint. then the pontoon is flipped over and rests on trolley stands Then the rest of the hull is fabricated.


      Once the ribs, gerts and posts are installed and inspected, we install the planking using the T & G edged planks as wide as have good wood. The glue is applied to the both edges and the plank forced tight against the joint while screws fasten the planks to the ribs. We might consider counter-sinking the screw so we can plug the hole above the screw with glued-in cypress plugs. Then cranes turn the bottom hull over and the trolleys are placed under the hull so it can be railroaded into the water.


      Stringers are then placed along all corners, glued and screwed into place and right angle cleats screwed or bolted into place. Planking is then installed the same as for the interior planking. Plugs are installed and sanded. Then the wood is sealed and painted several coats with a inhibitor against marine worms and other marine critters.
      The interstitial spaces which are four inches, are then foamed with polyurethane foam. When cured, excess foam is cut flush with the outboard ribs.


      There should be "X" braces at all four corners at the bottom and at the top of the hull framework and at the top and bottom of the pontoon. These braces should be vertical as well as horizontal.


      We need to review and enforce all worker safety rules, especially working in confined spaces.
  1. STRUCTURE ABOVE MAIN DECK.
    1. Framing. The framing should be balloon framing, so we will need some tall trees to go three stories. Corner posts and intermediate posts should be 8 x 8 and as long as necessary to support the roof which will rest on a post and beam rim. Beams will probably be 4 x 12 on posts about 12 feet apart. Quarter inch steel post/beam caps will be used as well as for the footings. These posts should rest over a post between the bottom and the main deck.
    2. First/main deck. The first deck will house the cafeteria, lounge, first aid, library, offices, and short-term storage. An elevator will serve the first deck, the two residential decks and wheelhouse, salon and observation deck on the fourth deck. We will have one handicapped accessible cabin on the first deck and one on each of the residential decks.
    3. Second and third decks. The second deck will have the cabins for the crew members. These will be modules build on the ground and hoisted into place and then bolted down. These will have a door which opens on to the deck running for and aft the length of and around the structure.
    4. Fourth deck. The fourth deck has the bridge/wheelhouse forward and to the edge of the structure with cat walks to the port and starboard. Behind wheelhouse will be a salon with a conference table, chairs, smart white board and other conferencing tools. The keyboard for the digital Calliope is also installed there, with loudspeakers mounted for and aft. The Salon looks out to the stern through sliding glass doors onto the observation deck, half of which is roofed and mosquito netting on the sides and rear.
    5. Choice of construction materials. Yellow pine would be the choice for the superstructure for structural timber. Sheeting, inside paneling and flooring would use engineered bamboo. Woven bamboo strips could be used for the ceiling and or for the walls. There should be plenty of bamboo in the southern states for cheap. I would mill and finish the engineered bamboo on or next to the shipyard. Home Depot has strip flooring of engineered bamboo; take a look.
    6. Cabin structure. The cabin is built on 2 x 8 floor joists and has 2 x 8 ceiling joists. Walls are 2 x 4 studs and plates, with Icynene insulation. At the corners, 5/8th inch treaded rods, nuts and washer allow a crane to pick-up the entire cabin and host it into place. The treaded rods will run from under the floor joists to the top of the ceiling joists. All connections will be made with stainless steel screws, not nails. All cabins are plumbed and wired and completely finished, ready for occupancy, except for the beds, dressers, tables and chairs.
We will use TJI's (Trust Joist Incorporated) for the floor and ceiling joists for structured (except for the first deck -- the deck is the support). The span table shows for the LL Deflection of 460, the span is 16' 10" with trusses set on 19.2" O.C. which requires 2.5" cords and a 3/8" OSB web. The walls are of 2 x4 with the TJI across the full 3.5" double top plates, which gives us a net interior space of 16' 2" net. The joints will be centered over each other from story to story and joists are centered on the studs. Corner posts are 4 x 4's. Straps and #10 screws hold Simpson Ties to the wood and 5/8" threaded rod run between the straps. See Simpson catalogue, p. 40 at
Simpson Strong-tie HTT5 tension tie. The anchor rod is 5/8 No. 3 threaded rod with washer, lock washer and nut. The 4 x 4 corner posts will straddle a 6 x 6 post placed approx. 16' 13" O.C. and bolted through the 4 x 4's and the 6 x 6, leaving 6" between cabins. We will need fire stops at each floor and probably one mid height. FHA straps (Simpson MSTC 28) between the rim joists will tie the interiors of the cabins together. See pg. 150 of the Simpson catalogue. Shear strength will be provided by structural OSB placed on the inside of each cabin. No sheeting is needed on the exterior walls of each cabin except for the outside wall. Icynene foam will be sprayed into all wall cavities and floor and ceiling joists cavities. Because of the lack of resistence which nails have to withdrawal, we will use screws to join wood, which will be #10 square head, vinyl coated.


The current estimate is that we will need to support a crew of 32 members, not counting non-working family members. For families, we can combine cabins by cutting side doors between adjoining cabins. Thus we could have the center cabin the "great room" with bedrooms on each side for a large family with older kids. Each side cabin would have a bath and a kitchenette could be located as part of the "great room". If the family had two or three working members, then we don't lose much in the way of living quarters to non-working persons. We might consider having some crew members employ a large fifth wheel travel trailer as their main living quarters. The trailers could be positioned in government campgrounds with hookups or private trailer parks for a week or so, then move to relocate close to the Flotel as it follow the Carp Avenger along the river.

7. Flooring, walls, ceilings. The flooring will be engineered bamboo strips, made into standard hardwood type tongue and grove flooring. For an alternative, we should consider using yellow pine as a flooring wood. The finishes will all be wood in their natural colors. A floating floor design will be used over a subfloor of plywood made as tongue and groove at 1 and 1/8" thick. Any wood, such as pine, fir, hemlock, or poplar is OK. Walls will be finished plywood sheets of 1/4" x 4' x 8'. Ceilings will be filled with Icynene foam between the joists, then sheet rock applied over which woven bamboo will be applied and then finished with a low VOC sealer and top coat made from soy.

8. Access. At the mid-line of the superstructure, a three foot hall will run so as to give access to utility connections and to enable the units to be bolted together. Bolting on the outside will be shoulder to shoulder and to the corner and mid-line posts. Sheeting then closes the work area.

9. Safety. The boat should have life boats, life vests and other gear as required by USCG. The entire boat should have fire sensors and alarms with battery backup. Each space should also have fire sprinklers. The boat should be equipped with radar, sonar and a fog horn. Proper navigation lighting and for emergency, strobe lights.

10. Crew Size. The crew members are Captains - 2, First mate - 2, Engineers - 2, Bowsin - 2; Fish sorters - 8, Fish processing - 8, biodiesel plant - 2, Project manager - 1, bookkeeper - 1, paramedic - 1, sales - 2, delivery/driver -1 = 32. The crew will require 32 living spaces or 16 spaces for each of the 2nd and 3rd decks or 8 cabins per side. . If a family requires more room, then we simply put double doors to the next cabin which allows us to build one specific cabin. We may need a guest cabin which we could put on the first deck.

11. Space size. The TJI span is 16' 10" plus the 6 x6 = 17' 4" per cabin gross footprint = 8 cabins on each side = 138.67 feet, plus fore and aft decks of say 20' for a total hull length of about 180 feet. Width is two passageways of 4' each, plus a 3' inside utility corridor, plus rooms depth of 16' each or 4+4+3+16+16 = 43 feet, round to 44'. Thus the main deck is 44' x 180' or 7920 sq. ft.

LEEDS. LEEDS does not currently certify boats. I want to use all of the environmentally “correct” components possible. Since LEEDS will not certify, we either find a different certifier or create our own.

  2. SEWERAGE DISPOSAL AND WASTE RECYCLING
    We need to recycle our waste water as much as possible and not put anything overboard other than clean water. The solids of the waste water can be transferred to tanker semis and used as part of composting operations. Cardboard, paper, plastic and other combustibles will be processed in a pyrolysis furnace to produce syngas and biochar. Syngas can be process into gasoline, diesel and other fuels, some which our engines can use. Bio-char will be ground, infused with Bio-Oil, then pelletized and sold for pellet stove fuel. Single use eating plates and utensils will be made from renewable resources such as corn or soy starch or milk whey. This system design should start early as it is a long item to complete with review by EPA, USCOAE, USFWS, and many others. 4
  1. INSULATION.
    We want the exterior walls of the super-structure with an R value of about 30 or more and the top ceiling/roof with an R value of about 60 or more. I suggest Icynene foam. See: http://www.icynene.com/
  1. BOATRIGHTS AND SHIPYARDS.
    One problem is finding boatwrights and shipyards who know how to build a wood hulls. We will double hulling the Flotel because of our human cargo and insurance costs. From the list of shipyards, Directory of U.S. Shipyards, http://shipbuildinghistory.com/today/directory.htm , I chose Halimar Shipyard, 6044 Railroad Avenue Morgan City LA 70380 (985) 384-2111 (985) 384-2112 Bill Hidalgo www.halimarshipyard.com as a candidate.
        “We Value Your Business
      Our business is your business. Assuring that a project is delivered on-time, on-budget, and functions in accordance with your design specifications is important to all of us. Halimar Shipyard was founded as a strategic alliance with the marine industry. We are a full-service shipyard incorporating the latest technological and engineering advancements to provide quality products and services to our customers.”
Using Google Earth, navigate to: 6044 Railroad Avenue Morgan City LA 70380 and watch for the yellow pushpin;

DESIGN AND CONSTRUCTION OF THE FLOTEL - CARP CATCHERS CO-OP
DESIGN AND CONSTRUCTION OF THE FLOTEL - CARP CATCHERS CO-OP

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DESIGN AND CONSTRUCTION OF THE FLOTEL - CARP CATCHERS CO-OP
  1. Modular construction
    Rather than have each room built on board, we can setup a factory next to the shipyard and build module cabins. Then, crane them onto the main deck. We leave a space of three feet done the centerline for access to utilities and for bolting the modules together. All we need is a catwalk for the space between modules on the second and third decks. We place the bathrooms next to the wall along and near the centerline of the boat so all plumbing comes to the utility hallway. Same with electrical, phone, Internet.
    This approach allows us to use jigs and to pre-cut all of the parts. For the outside corners of all cabins, all we need to do is to leave off the sheeting which covers the 4 x 4 corners and the 6 x 6 post so we can feed bolts through the corner posts of each unit to tie them together; then we can install the sheeting. This shipyard appears to have room for our small operation, which we could rent from the shipyard or a neighbor.
  1. POWER.
    We will install a diesel with a generator, probably 12,000 to 20,000 kW/hr. We should consider two diesels, one with a 6,000 kW/hr generator when usage is low, such as at night, and a 12,000 kW/hr generator. That way we could have the diesels running at optimal speed with outputs of 6,000 12,000 and 18,000 kW/hr. I may be way off on the wattage, especially if we use solar thermal energy for heating water and cooling. The idea is to split the generation so the combination of generators balance our loads. We will need a bow thruster. As with the Carp Avenger, the propellers would be turned by electric motors through a transmission. We also need auxiliary power when the main engine shuts down. Do the river boats have anchors? I've not see one.
  1. MOLD Mold loves moisture and wood. We can expect a fair amount of humidity in the hold even if the hull and main deck does not leak. Using Cypress exclusively for the hull will help. Can we afford it? Let's hope so. We need to price alternative woods for the ribs, gerts and posts. We should consider applying a earth-friendlymildewcide during construction.

  1. PROFESSIONAL RELATIONSHIPS.
    We will need very good, harmonious relationship among the designers. To that end I would like to use the wikiwebsite as the primary text platform. I took a course in SolidWorks at Linn-Benton Community College and about three weeks into SolidWorks, I switched to Google Sketch-up (GSU). The prof did not approve, so I struggled with SolidWorks, turned in minimum work using SolidWorks, and commenced learning Google Sketch-up, which has plenty of self-learning tutorials.



    I would like to create an internal system of peer review. Above all, I want our professional team to work harmoniously together and be willing to bounce creative ideas off each other with trying to play one-ups-man-ship. If we need to resolve a dispute, we can bring in a fourth engineer or we can vote with a majority making the decision. I also want to setup the team whereby Garrett has primary responsibility for the Carp Avenger and Mark has primary responsibility for the Flotel. Then Garrett does the peer review on the Flotel and Mark does the peer review on the Carp Avenger -- all in good humor and treating each other as colleges. The carpologist also has a place at the table and a vote. If I can find a really qualified wood-working boatwright, then he or she will have a place at the table and a vote. I don't want to "committee" every point or have too many meetings -- only when we have an issue which needs our combined judgment -- and an effect on the success of our Mission. We can conference asynchronously using theWikiweb or synchronously by phone using Skype.
  1. DESIGN SOFTWARE.
    I know engineers have spent countless hours learning AutoCAD, which is part of their life-support system. With all due regards for their time and talent and all things considered, I would like the working drawings done in Google Sketch-up, which can read AutoCAD files. Since Google Sketch-up has a free version which is both a viewer and a design platform, it trumps SolidWorks and AutoCAD. Those who wish to upgrade GSU can do so. Since GSU is free, it is widely distributed. I want to make sure all of the agencies in the loop can have the files so they can review our plans, especially the Coast Guard. By using GSU, the reviewers can redline any item with comments and thus will speed the review and the completion of our working drawings.

12. CARP AVENGER
    I want to build the Carp Avenger in a northern states shipyard, for political purposes. When finished and tested, I would start at the mouth ofYour browser may not support display of this image. the Mississippi River and move north. I would pick the winter months for the start, probably December of 2010.


    13. SCHEDULE
    An intense schedule is important so we can start carp reduction ASAP which will help on the funding issues.
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1
Wikipedia An ark was a temporary boat used for river transport in eastern North America before canals and railroads made them obsolete. Arks were built primarily to carry cargo downriver on the spring freshet to carry lumber or logs and agricultural produce to a port city downriver. Upon arrival, the cargo was sold, the ark was dismantled and its lumber was also sold, and the ark pilots returned home on foot or horseback. Despite the slowness of the craft, it was stable and with a skilled crew was capable of maneuvering through fairly narrow points. Other river craft, usually the batteau or bateau worked alongside the arks, ferrying the workers while the horses and bunks and supplies floated down the larger, stable structures. Some arks in the Susquehanna River system were up to 75 feet long. The arks within the Greenbrier River in West Virginia averaged sixty feet save for the larger cooking arks used to feed loggers four times a day.[1] http://en.wikipedia.org/wiki/Ark_%28river_boat%29


2

Aziprop is the registered trade mark of Fischer Panda. Fischer Panda has developed the System based on the AGT Permanent Magnet Motor Technology. These electric motors are based on the latest technology. Fischer Panda has been involved with this technology for more than 10 years. The Panda DE Aziprop system combines both electric motor and propeller into one unit. The motor is located underneath the hull, in a rotatable gondel (a fully sealed stainless steel housing.)

DESIGN AND CONSTRUCTION OF THE FLOTEL - CARP CATCHERS CO-OP



An AGT generator is always the ideal option, if propulsion is the most important factor, although in principal, any three-phase generator can propel a Whisperprop DE-System. There is no argument against the use of conventional generator technology. Only if a conventional ship generator is provided or exists, (especially for a relatively high performance above 50 kW therefore interesting for larger yachts) http://www.aziprop.de/eng




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