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05. Building 15m carbon performance catamaran - "CarbonBee" 

Bo Janu
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All videos are to see on my channel: / @bojanu7212
We are building "CarbonBee" in Berlin (Marina West). Measuring 15 meters in length, based on our JANU-15 design, full carbon catamaran focuses on both high performance and a well-balanced level of comfort
It's a family project from the design over the construction up to... sailing the catamaran.
Unsatisfied with the offerings on the market, we decided to design and build the catamaran ourselves using state-of-the-art materials and technology.
"CarbonBee" is designed to be a true blue water sailing catamaran, offering a combination of lightness, solidity, power, speed, and safety. Our intention wasn't to create and build any houseboat or a condo-maran.
The aim was also to demonstrate that building a high-tech sailing catamaran can be achieved by amateur builders.
The catamaran's two hulls will each contain two cabins for two people, as well as a shower with a basin and a separate toilet with a basin. The bridge will feature a kitchen, saloon, navigation equipment, and a steering station.
"CarbonBee" will get electric propulsion and possibility of recuperation when going under sails.
"CarbonBee" measures 15 meters in length and 9.3 meters in width, with a draft of 0.5/2.5 meters and a weight of approximately 4 t. The displacement is 6.5 t.
See also the last picture in Video - 01.
Alle unsere Videos sind hier: / @bojanu7212
Wir bauen „CarbonBee“ in Berlin (Marina West). Mit einer Länge von 15 Metern, basierend auf unserem JANU-15 Design, der Kohlefaser-Katamaran Projekt konzentriert sich sowohl auf hohe Leistung als auch auf ein ausgewogenes Maß an Komfort
Es ist ein Familienprojekt vom Design über den Bau bis hin zum… Segeln des Katamarans.
Unzufrieden mit den Angeboten auf dem Markt entschieden wir uns, den Katamaran selbst zu entwerfen und zu bauen und dabei modernste Materialien und Technologien einzusetzen.
'CarbonBee' ist als wahrer Segelkatamaran für die Ozeane konzipiert und bietet eine Kombination aus Leichtigkeit, Solidität, Kraft, Geschwindigkeit und Sicherheit. Unsere Absicht war es nicht, ein Hausboot oder einen Condo-Maran zu bauen.
Das Ziel war auch zu demonstrieren, dass der Bau eines High-Tech Segelkatamaran auch von Hobbybauern bewerkstelligt werden kann.
Die beiden Rümpfe des Katamarans werden jeweils zwei Kabinen für zwei Personen sowie eine Dusche mit Waschbecken und eine separate Toilette mit Waschbecken enthalten. Die Brücke wird über eine Küche, einen Salon, Navigationsausrüstung und einen Steuerstand verfügen.
'CarbonBee' wird einen elektrischen Antrieb bekommen mit Rekuperation Möglichkeit beim Segeln.
„CarbonBee“ ist 15 Meter lang und 9,3 Meter breit, hat einen Tiefgang von 0,5/2,5 m und ein Gewicht von etwa 4 t. Verdrängung beträgt 6,5 t.
Siehe auch das letzte Bild in Video - 01.

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12 сен 2024

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Комментарии : 44   
@ipc1962
@ipc1962 Год назад
Great job, amazing design.
@bojanu7212
@bojanu7212 Год назад
Thanks! Nice to hear it.
@LifeOnTheHulls
@LifeOnTheHulls Год назад
Incredible work mate. Cheers Ross
@bojanu7212
@bojanu7212 Год назад
Thanks!
@crazyg74
@crazyg74 Год назад
'working on myself'. Well deserved mate!
@JhojoGaming
@JhojoGaming Год назад
i can't wait for the finished product
@bojanu7212
@bojanu7212 Год назад
We too! ;-)
@DougVarble
@DougVarble Год назад
Real work, when is your target splash date?
@bojanu7212
@bojanu7212 Год назад
Still we have a lot of things to do: mast and boom, rudders, installing the equipment and furniture inside, installations (electro, water, etc.) - we are planning the year 2024 to be ready, since we are not working in winter and partially in autumn & spring season as well. We have to leave the place in the hall of the shipyard, since it is rent for other boats during the winter.... technical "splash" soon.
@sweetagony666
@sweetagony666 Год назад
great work!! great!
@lbb101
@lbb101 Год назад
Oh glorious sanding. 😎
@bojanu7212
@bojanu7212 Год назад
Yeah..., a lot of fun... every day.. 😤🥵
@lbb101
@lbb101 Год назад
@@bojanu7212 you'll got there and you'll be rewarded with beautiful sailing on an amazing boat you built yourself. Likely more people stood on top of mount everest than achieved this ...
@alexforget
@alexforget Год назад
Awesome work. You are an inspiration.
@hakubaholiday9006
@hakubaholiday9006 Год назад
So good. She's looking great! Well done!! We are eagerly waiting for more videos and progress.
@tcurdt
@tcurdt Год назад
Wow - great progress since we saw you! Thumbs up!
@romanatepper8276
@romanatepper8276 Год назад
What a huge enterprise! You are an awesome team! Congratulations!🤗😘😘😘😘
@Largexxl-zn4lx
@Largexxl-zn4lx Год назад
Sehr geiles Projekt!! Danke fürs Teilen!!
@rickreid8149
@rickreid8149 Год назад
Going very well looks great
@tomben-eliyahu1768
@tomben-eliyahu1768 Год назад
Amazing work and a great project! Very impressed with the results and how fast you are getting everything built! I’m curious how the water drains out of the flush hatches you built? Is there a drain with a tube leading overboard?
@bojanu7212
@bojanu7212 Год назад
Thanks! Yes the drains are at the front wall of the bridge. You can see also the drains in video 04.
@gavinferguson
@gavinferguson Год назад
thats one serious performance cat beam is so wide compared to more poduction boats for the same size. lots of loads on rig
@bojanu7212
@bojanu7212 Год назад
The forces are not bigger then by production boats because of the low weight of CarbonBee. The calculated maximal bending force acting on the main beam and the compression force in mast is ca. 90kN. In this number is also considered acting force giving higher speed of the boat, which is equal to resistance of the hulls at speed of 25 knots. Additional to the design process of the main beam and mast the safety factor must be added. Using carbon fibres and proper design you can manage the forces/loads in these two important elements of the catamaran. The forces in shrouds are lover then by comparable production boat because of the wide attachment base.
@paulb9842
@paulb9842 Год назад
Impressive! How can you do this? Where is your knowledge from?
@alexanderlenina4203
@alexanderlenina4203 Год назад
Beautiful! Wouldn't you like to have bigger portlights in the hulls in order to have more day light? Would that be even possible at this stage?
@bojanu7212
@bojanu7212 Год назад
Thank you! Yes it is possible to get bigger windows, but it will require more reinforcement (read: more weight ☹). Furthermore, we are considering that all the life will take form on the bridge in saloon, cockpit and forward deck. The space in the hulls is for sleep, private separation and relax, where the full daylight is not an important significance. By the way, in rear cabin will be additional port-light (is not yet installed) at rear wall, there where are the stairs to the deck.
@CheersWarren
@CheersWarren Год назад
Hi Kevin, lots of progress. Do you want have any photos of the molds you used to make the parts on? Cheers Warren
@bojanu7212
@bojanu7212 Год назад
You can see some moulds in our first video (Part-01)
@Mars21681
@Mars21681 Год назад
well done! did you weigh how much paint and epoxy went onto the frame? it's very surprising how much weight it can all add. approximately how much has been invested so far in materials thus far, not counting man hours put in.?? I'd love to see this in person, buy y'all a bier and talk for a little bit while I'm still in DE
@bojanu7212
@bojanu7212 Год назад
We will start with the works supposedly end of March, when the temperatures are higher. You are invited (Marina West, Rauchstr. 43-45, Berlin). Then we can answer your questions.
@robertlaird6746
@robertlaird6746 Год назад
I've watched all of your videos so far and can't seen to find out any details besides the length which is 15 meters. Awesome looking and I can see why your calling it carbon bee, the side windows. It looks much wider than all the 15 meter catamarans I've ever seen but that might be due to the camera lens. How wide is it? Also what is the dry weight before you add all your personal belongings? How much did you spend on all of the carbon fiber and consumables if you don't mind sharing that information in USD? Looks like it will be a supper fast boat and lightweight which is awesome.
@bojanu7212
@bojanu7212 Год назад
Hallo Robert. I am glad you like the design. 😀 Please check the description under the video (press "watch/see more") and also read my responses on the comments under the videos - especially under the Video Part-02. In these responses you can find a lot of informations about the project. In short: CarbonBee is 15m long and 9,3m wide. Draft 2,5/0,47m. Weight empty: 4t. See also the last picture in Part-01 Video. Why "CarbonBee"? - the build material is carbon and the Anna's nick name at home is Bee (Pszczółka).
@robertlaird6746
@robertlaird6746 Год назад
@@bojanu7212 Wow, only 4 tons. That's very impressive. Is that with all the sails and navigation equipment but with empty fuel tanks and no personal belongings aboard? The width is very wide as I thought. I'm not sure about this but I've heard that when you go to wide, it effects the performance in a negative way but I don't know what the length to width ratio is that they are talking about. I'm looking at building an aluminum catamaran like the one that Peter from Sailing into Freedom is having designed for him right now. It would be nice to know about the cost of building it out of carbon fiber verses aluminum. I also like the Schionning Arrow 1360 called Duet and the Mumby Cyber 48. Not quite sure which plan I'll be getting yet but I'll have to go with a plan because I don't know how to design anything like what you have done. The cost and time to build one will also be a major factor for me so I'll have to consider many things before starting the build.
@bojanu7212
@bojanu7212 Год назад
@@robertlaird6746 ...Yes it is not easy task, but you are on the good way comparing different designs, building technologies and materials. We went the way too, but we didn't find such a boat which suited us and at the end I decided to design it myself. Good luck for you and wish you good decision. By the way: sure, the wideness (but still not like a trimaran) effects in negative way the performance, ....but only in ports. 🤣🤣
@robertlaird6746
@robertlaird6746 Год назад
@@bojanu7212 The width would probably give the boat a faster turning time and make the auto helm work harder. I used to race Tornado and Nacra catamarans. The Tornado was 20 feet long and 10 feet wide. I liked that balance of length to width. The Nacra was 8 1/2 feet wide and sometimes it was hard to steer it. I think that was due to it being narrower in width. Both had about the same size of rudders so I'm thinking that it was due to the width. I'm wondering how yours will preform. Sailing Jupiter on RU-vid has a Mumby Cyber 48 that is 25 1/2 feet wide and their boat weighs 6 1/2 tuns. After they load up there diesel, water, food, clothing and other personal items, the weight increases to about 8 1/2 tones. My question is if you built the same design of boat out of aluminum and another out of carbon, what weighs more and by how much?
@bojanu7212
@bojanu7212 Год назад
@Robert Laird Generally the weight of the aluminium, good designed catamaran shall be in the range like a fibreglass catamaran, or higher. I already responded to your comment earlier, what difference you can expect in comparison of fibreglass to carbon-fibre construction. To compare the length/width ratio you have to take the width between the axes of the hulls and CWL. By CarbonBee this is 8m, what give her extreme transverse stability, and possibility to use bigger sails in comparable wind conditions. That is one factor, amongst many others what shall characterised real performance catamaran. CarbonBee empty weight without water is 4t and displacement is 6,5T. Since we will have electro-engines and they will generate current during sailing, additional to solar panels, and we will have water-maker, we will need not so much diesel&water in the tanks. Robert, please read my responses to other people comments - you will get a lot of info.
@steveberkshire3804
@steveberkshire3804 Год назад
How much will this project cost in total estimates I wonder, it's really nice?
@bojanu7212
@bojanu7212 Год назад
😃Please read my responses on the comments under the videos - especially under the Video Part-02. In these responses you can find a lot of informations about the project.
@SV_SheDevil
@SV_SheDevil Год назад
Seems really wide compared to the length, what are the dimensions and why so wide?
@bojanu7212
@bojanu7212 Год назад
Yes.. she is wide, light, has only one floor, is aerodynamic optimised, has higher bridge situated more backwards then by others cats, has daggerboards, and has many other, specific design's characteristics.... simply, she is designed (with only little compromises) for extreme fast sailing and fast ocean passages. I am agree, she is something else then these "performance catamarans" everybody is telling about, nowadays. Maybe...CarbonBee is (performance catamaran) ² . 😯 🙂 Moreover, Kevin's sail racing genes were considered during the whole design process 🙂
@jeyseychelles1370
@jeyseychelles1370 8 месяцев назад
You need to work on your story telling skills I mean the video is good and you are talking about everything we need to hear but using the same information you can make it more interesting So basically if you look at the video when you doing voice over and you feel like you have nothing to say so, when we look it we see it the same way because the way you talking you make us view the video the same way as us If you dont like my criticism i will not give any but trust me i love your videos I was searching for it all over RU-vid i didn’t knw what keywords to use
@bojanu7212
@bojanu7212 8 месяцев назад
Thank you for the comment. You are correct because most of the videos on RU-vid, which describe, for example, the building of a boat, are intended not only to showcase the construction of the boat itself but also the life of the builders. This is to make them quasi-influencers with the hope of earning money from clicks and advertising. The purpose we present in our building story is included in the description under the videos - please read. We aim to possibly provide short and informative content, focusing only on the main technical aspects of our project without delving into details which are commonly known and without details about ourselves and our lives,. During the build, and when capturing video material, we often have music in the background. This, unfortunately along with our voices, must be deleted. Otherwise, RU-vid doesn’t allow us to publish the video because the background music isn’t authorized. That's why I only comment on the videos and use another music background which is authorized. I also believe that pictures and videos convey more than the best comments.
@jeyseychelles1370
@jeyseychelles1370 7 месяцев назад
@@bojanu7212 ok heare me out this is a whole yacht we are talking about so for months you will be doing repetitive work, i understand this, and this is the partu deed good you show us exactly the amount of details that is desirable without it getting booring, and you dont talk much in the videos you do voice over all of this is good So what i am saying instead of saying " urr just some more sanding" you coulxd make it interesting and just give some more details eg " so we are now sending the roof, and swe always have to wear our protective gear like i said before you dont want to breath this dust, my dad had been sending here for like 5 hrs straight, got lunch and he is back at it" I mean i dont knw if you understand what i am saying, im also an engineer and our brain is always telling us this is not important and in the end we are just left blank
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