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Wordle of the Day?

4 with a rather fishy clue🤣

11 minutes ago by Cashrc

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Wordle of the Day?

No need to reply to this one. Just creating a placeholder thread. I'll update everyone in time 👍 Stephen

5 months ago by fireboat

Response

Re: Nile River Gunboat - Stern Wheeler

Neil, that is quite a find. It has tremendous character and deserves your TLC to get her into her glory. If you are going to add even more detail be sure to post more pictures. Barry

28 minutes ago by BarryS

Response

Re: Nile River Gunboat - Stern Wheeler

I say…

50 minutes ago by jumpugly

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Question of the Day?

Agreed.😊

2 hours ago by MouldBuilder

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Question of the Day?

Hi All, Given that it's always popular in December (and I've now figured out a way to get multiple-choice quiz questions very easily), how many of you would enjoy a non-competition based fun question of the day, each day? In a similar way to December's one, it'll be on the home screen each day, with four possible answers to choose from. Maybe a rolling leader board and linked forum thread to discuss questions (but not reveal answers until the following day). I know we're talking about at least 365 nautical/shipping/maritime/sailing/boating quiz questions here! But I now believe its possible to put together with little effort 😉 perhaps useful to onboard a volunteer researcher mind, to double check questions and answers before they're made live. So if anyone would like to do that, let me know too. Thoughts on having a Question of the Day? Stephen

9 months ago by fireboat

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Question of the Day?

Rubbish!

3 hours ago by Rowen

Response

Re: Nile River Gunboat - Stern Wheeler

Those Gatling guns are formidable ! I bet she is the precursor to the A10 close-air-support Warthog

3 hours ago by RodC

Response

Re: Nile River Gunboat - Stern Wheeler

What a wonderful looking model! I normally don't like it when someone posts a lot of photos. However, this model is an exception and deserves a look into all the "nooks and cranies". As for 1/24 scale, you might look into "G" scale - mighttbe something there. Lew Florida ⛱️, USA

4 hours ago by LewZ

Response

Re: Caldercraft Clyde Pilot Cumbrae

List to port having problems getting her stable in the water sits well till the top deck part is put her on then top heavy and tips to right I’ve put in lot of lead all ready battery etc are in the middle

5 hours ago by Stephen T

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Sealing Balsa & Ply

€26,50 here, tax included Rod. Still worth every cent. No hardener, no pong no mess. People friendly😊 Cheers, Doug😎

6 hours ago by RNinMunich

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Modello RC scala 1/60, di piroscafo armato a goletta, liberamente ispirato alle cannoniere classe US

Good evening everyone. Finally I talk about the sails. After much research I chose poplin cotton, bought on Amazon from an Italian shop. The intention was to get cotton for shirts. I thought the plot was a little thicker but I was in a hurry, this job had been going on for years and I wanted to do the first tests in the water with the sails mounted, so I used what I received without sending it back. I had never sailed. Zero experience. The previous model had sails but they were not functional (just for beauty) it only sailed by motor. I based it on my project but then I made many changes and tests with cardboard, as you can see in the first images. I cut out the fabric and made two copies of each sail (I keep one for possible replacement). There are two jibs, two mainsails and two topsail gaffs. To sew the edge and to sew the "zips", sail cloth, cloth, panel (simulated) I asked my seamstress aunt for help. I sewed the "gratile" (luff cord, boltrope) by hand onto each edge of the sails.

6 hours ago by AlessandroSPQR

Forum

Modello RC scala 1/60, di piroscafo armato a goletta, liberamente ispirato alle cannoniere classe US

non riesco ad inserire il resto del testo

3 months ago by AlessandroSPQR

Forum

Sealing Balsa & Ply

Hi All, I know this is a question that has been asked many times but I don't seem to be able to find definitive advice. At 69 years old my browsing skills are limited. Here goes. Just building my first boat after recently retiring. It's a Dumas PT212. The hull and many parts are plastic but there is also ply and balsa involved. My question is this: What can I use to seal the wood components prior to using car primer on all the components? I have read many ideas on this and am totally confused. I am UK based.

17 hours ago by Treforissa

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ANATOMY OF THE ESC FOR BRUSHED MOTORS. HOW THEY ARE MADE AND HOW THEY WORK IN THE DETAIL OF THEIR EL

It depends on how many amps you want it to run on. You need to check the gain of the transistor and compare it with the the o/p of the transistor driving the big one. Electronize did a more powerful esc maybe check what was done there. I am passed that sort of design bit now, sorry! I mentioned I was using the 43 which was happy at 15 amps i.e. European amps not the ones they have in the far east! regards Roy

6 hours ago by roycv

Forum

ANATOMY OF THE ESC FOR BRUSHED MOTORS. HOW THEY ARE MADE AND HOW THEY WORK IN THE DETAIL OF THEIR EL

Hello to all naval modelers. This topic has been discussed in another topic but I prefer to take it out of there and deal with it separately. I would like to know how modern ESCs for Brushed motors are built. I would like to know if anyone has any electrical diagrams and functional block diagrams or is able to describe them. By modern I mean to exclude those that acted mechanically (with a servo, for example) on potentiometers or resistors. I have never opened one and therefore I am not able to establish at least the basic principles based on the individual components. I copy part of the post here: Do modern ESCs have any "similarities" to switching power supplies that have replaced classic linear power supplies? Clearly they do not have the function of lowering and rectifying the voltage (from 230 AC to 6-24 DC for example). I am referring only to the part that adopts PWM and Duty Cycle. I am referring to the ON - OFF switching to vary the voltage, from the maximum voltage (which can be drawn from the battery) to the minimum voltage. I'm making some assumptions (perhaps with many errors so as to stimulate the discussion, ahahahahahah): I don't think there is a need for the initial filter (inductors and capacitors) to clean the signal as happens in switching power supplies, given that the voltage comes from a "clean" source such as batteries. I don't think there is a need for the Graetz bridge (diode bridge) immediately after as in switching power supplies. And not even the little high frequency transformer? I'm thinking about it. The PWM signal comes from the receiver. Okay. Here it could be managed by an integrated circuit that controls the power transistors to create a duty cycle which will then provide the desired voltage. Is there a need for capacitors at the end for leveling? Maybe there isn't even any opisolator for feedback. Who knows what it's like inside this ESC we talk about every time? For simplicity's sake, for the moment, we could leave out the discussion of the integrated BEC. Thanks in advance to everyone who wants to help me and have their say. Digressions of all kinds are allowed! Ahahahahahaha.

2 days ago by AlessandroSPQR

Forum

Sealing Balsa & Ply

CAN$32 here+13% tax. My 1st bottle was $35 18mo ago

6 hours ago by RodC

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Sealing Balsa & Ply

Colin, That is my choice since discovering Ezekote some years ago. Fortunately I can get mine here in Germany from Krick. I thin it with ~20% water so that it soaks into the wood. Especially for balsa, soaks in and strengthens it. Then a coat or two of neat Ezekote, no glass on ply, maybe tissue inside and out on balsa for added 'ding' resistance. Cheers, Doug😎

6 hours ago by RNinMunich

Forum

ANATOMY OF THE ESC FOR BRUSHED MOTORS. HOW THEY ARE MADE AND HOW THEY WORK IN THE DETAIL OF THEIR EL

In your opinion, is it sufficient to replace the mosfet (or in any case the final power transistor) with one with a greater current capacity?

6 hours ago by AlessandroSPQR

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ANATOMY OF THE ESC FOR BRUSHED MOTORS. HOW THEY ARE MADE AND HOW THEY WORK IN THE DETAIL OF THEIR EL

The power transistors may be mosfet but the Electronize kits I made up had the old fashioned power transistors. Roy

6 hours ago by roycv

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What do these resemble?

I am going to get into trouble if this thread wanders into pros and cons of hearing aids. The unit looks similar to mine, I had a bizzare choice of colours but quickly chose ones that matched my hair where it still shows. Roy

6 hours ago by roycv

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Question of the Day?

Are'nt these Admirals naughty. I think it is a hint about spelling? Roy

7 hours ago by roycv

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ANATOMY OF THE ESC FOR BRUSHED MOTORS. HOW THEY ARE MADE AND HOW THEY WORK IN THE DETAIL OF THEIR EL

Thanks so much Roy, fast and precise. I believe you are referring to the mosfet transistor, not the other BJTs, can you confirm that?

7 hours ago by AlessandroSPQR

Forum

What do these resemble?

If they are hearing aid inserts and I have seen similar, they are about 5-6mms diameter. Ihave a friend who has them and I was going to ask (NHS) Audio dept if they were options as they look like they allow a bit of airflow. Roy

7 hours ago by roycv

Forum

Question of the Day?

Hi Doogle, Clever chap Monsieur Souchard; he also found time to make excellent chocolate, fine wines AND play inside left for Luxembourg 😉😂 Sorry😌 Oh dear, slapped wrist again😭 😎

7 hours ago by RNinMunich

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Wordle of the Day?

Home in 2..

7 hours ago by DGoss999

Response

Re: 100 years plus

yacht given to me by a club member who knows that I like a challenge

7 hours ago by jacko

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ANATOMY OF THE ESC FOR BRUSHED MOTORS. HOW THEY ARE MADE AND HOW THEY WORK IN THE DETAIL OF THEIR EL

Hi Allessandro. The ZN409 is a passive chip no programming needed. If you want more power a higher current o/p transistor like a OC29 or 3055 sorry can't remember the numbers. Should be cheap but I can find plenty of them in my tranny collection if needed. Remember these old power transistors have a 0.7 volt loss across emitter to base and develop unwanted heat. Roy.

7 hours ago by roycv

Forum

Sealing Balsa & Ply

Or you could seal using ezekote water thin-able resin and fine glass cloth which is odourless, colourless and dry enough to paint over in 30 mins with any type of paint without getting a reaction. Cheers Colin.

7 hours ago by Colin H

Forum

Sealing Balsa & Ply

Sorry.. There is a PS to my last Post.. After applying the tissue and dope, you will have to apply another 3 coats of the 50/50 Dope/Thinners concoction, and of course rubbing down between coats, just to give the new applied coat a "key".. Once completed , a paint of your choice can be applied, I tend to use Acrilic paint from Halfords, starting with a couple of coats of Grey primer, rubbing down between all coats, then apply colours of your coice, if more than one coat is required, dont forget to rub it down for next coat to have a key.. ATB Muddy..

7 hours ago by muddy

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AliExpress

My Bristol Bay is in relatively pristine condition. The rigging is original, I have the masts and sales and the navigation lights all still work. The radio is in the 75 megahertz band so I am stuck with a long antenna on the TX. Overall that I have seen on Kijiji or eBay are locking the rigging but have the masts and no sales or they have neither. Please forgive my spelling, I am using voice to text conversion

7 hours ago by RodC

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AliExpress

Hi all, I need help. Everything I get email wise from the above is in a foreign language possibly Urdu? or maybe Yiddish, I just do not know. I have tried to unsubscribe but it is all foreign and maybe I chose wrongly. Any ideas on what to do? Roy

4 days ago by roycv

Forum

Sealing Balsa & Ply

HEllo... Sealing Balsa wood or Ply.. Balsa I have always given the wood about 6 coats of Cellulose Dope but thinned 50/50 with Cellulose Thinners available from most car Paint supplies/Motor Factors, The Thinners is not cheap. That is for sealing Balsa, but to help strengthen the Balsa Use about 3 coats of 50/50 dope /thinners, then apply some Medium grade Tissue Paper as was/is used by aero modelers. Place the Tissue on the pre-treated wood and paint over and into the tissue , just like hanging wallpaper, Dont have any "Cut" joints, tear the paper to size, the teared joints will be near to invisable apon completion of the dopeing process.. Good luck, and dont forget a mask, the thinners and Dope can be very strong in the odure range. Do it outside or in a drafty place.. ATB Muddy..

7 hours ago by muddy

Forum

Question of the Day?

Suchet was an amazing Edward Teller in the PBS "Oppenheimer" series years back. In many ways it holds up better than this years "Oppenheimer."

8 hours ago by jumpugly

Response

Re: Nile River Gunboat - Stern Wheeler

That's an amazing find for £15 well spent👍. Looking forward to seeing how you progress with this 😊

8 hours ago by Doogle

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ANATOMY OF THE ESC FOR BRUSHED MOTORS. HOW THEY ARE MADE AND HOW THEY WORK IN THE DETAIL OF THEIR EL

Ok John, I've seen the components, I should already have many of them. I found that the integrated chip is precisely the ZN409CE, which you told me about in previous posts. As far as you know, does it have to be programmed or can it just be used like that? I seem to have understood from the datasheet that no programming is needed, am I wrong? I don't know if 15 amps are enough, because during the tests, on some occasions, I came close and in some circumstances it could easily be exceeded. If I have to make an effort I would prefer to do it with a circuit that guarantees higher absorption. However, it is not excluded that in the absence of other schemes I could start assembling it for pure fun. Let's say that, if I can, I would like to combine usefulness with pleasure. Even if I have already done so, I thank you again because you were really very kind and helpful in finding all this information material. As already mentioned, just reading the wiring diagram made me understand many things, answering many questions. I await other, possible, welcome technical contributions.

8 hours ago by AlessandroSPQR

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For Sale: Aerokits Vosper R.A.F. Rescue Craft

Would love too say yes but no room at the inn or pocket money 💰. Hope you find a buyer 😀

8 hours ago by Doogle

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For Sale: Aerokits Vosper R.A.F. Rescue Craft

For Sale: Aerokits Vosper R.A.F. Rescue craft. Yes it’s the big one 46” length by 13.5” beam. Built in the 1970s. In very good condition, sound hull, drive shaft, propeller and steering. I have now found the the fittings for the Rescue craft. I have removed the original engine but is available if wanted for £40. See photo below. Ideal for an electric conversion. Price £120 without engine. To be collected from CF15 Creigiau, Cardiff. 1 mile of Junction 34 of M4

16 hours ago by ALLENW

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Wordle of the Day?

4 with clue 🙄

8 hours ago by Doogle

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Question of the Day?

Good old David Souchard, plays the part extremely well 😊

8 hours ago by Doogle

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1st Advent

Wolle a good evening i return the best wishes for yourself and your loved ones for this period of the year which should be the warmest period of the year not climatwise but heartwise. I would say enjoy the snow and don't forget the schnaps or Glühwein to warm up the feet

9 hours ago by hermank

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1st Advent

Hello, I wish you all a nice 1st Advent. Enjoy the pre-Christmas season with your loved ones. Here are some beautiful wintry pictures that were taken this morning here in Northern Germany, my home town of Stade.

12 hours ago by Wolle

Response

Re: 5. Old Stern wheel steamer

Hammer! My wife has finished her first part . . I have already provided her with more work! 🫢☺️😍 Guys, I'm happy! 👍👍👍 Michel-C

10 hours ago by Mike Stoney

Media

Rc kayak

Rc model kayak 1:6 scale gijoe

11 hours ago by houseman8556

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Sealing Balsa & Ply

This I use on my projects before paint but as already said each to there own

11 hours ago by TerryH

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What do these resemble?

Memories of dear Martin555 (RIP) and his yoghurt pot and ice cream tub creations Rod. "Every item that I consider putting in the garbage or into recycling is something that I look at with an eye towards using it in one of my hobbies." That's why I'm 'up to me neck in muck n bullets'. In danger of being called a 'Messy'😁 😎

12 hours ago by RNinMunich

Forum

What do these resemble?

Good one Ron 👍😂🤣 Nearly fell off my chair laughing😉 I couldn't see that as a radar antenna dish, proportions all wrong re the 'lump' in the middle, where the receiver detector/waveguide would be on a real antenna and the collator which collects and directs the signal to the central detector is missing. In TX mode it would project the signal to the dish to be collimated and transmitted. Certainly no antenna I'd ever seen be it on ship or land, and believe me I've seen some. If you want to use them as antenna parts best I can suggest is a ground plane at the base of a VHF monopole antenna (e.g. VHF Marine Mobile), inverted disk, i.e. rounding down towards the edge. I was about to ask you for the dimensions and where you found them. My first thought was parts of a model car wheel hub. But you might be better off having them gold plated and made into a pair of cufflinks😉 Cheers, Doug😎

12 hours ago by RNinMunich

Response

Re: Nile River Gunboat - Stern Wheeler

Exquisite, great project Neil👍 Love the Gatling guns. Can't wait to see her chugging about😀 Could imagine her on Lake Victoria with 'Humpty Gokart's' father/grandfather trying to sink her with African Queen the first.😁 Cheers, Doug😎

11 hours ago by RNinMunich

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Question of the Day?

I am a fan of David Suchet as Poirot, I record them on my TV disc drive and can go to any one to enjoy it. I think I have 23 so far. Roy

11 hours ago by roycv

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Sealing Balsa & Ply

Hi John if you are using car colour acryllics from Halfords you are supposed to finish the spraying off with the clear spray, this hardens the finished surface. When all hardened off, for hulls, I usually apply a quality furniture polish to finish. Many of my models have survived for 10 / 20 years without any attention. regards Roy

11 hours ago by roycv