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>> Home > Tags > rank

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1tenor was just for a short time by onetenor Fleet Admiral!   Posted: 9 days ago
one tenor has been restored as user name and rank restored too. my new e mail address is johnmantova6@gmail.com I hope that is clear. Blame Google.👍

Change of E mail address by 1tenor Seaman   Posted: 10 days ago
I just had to change my E Mail addy owing to Chrome buggering up my details so here I am with a new ID and demotion to recruit. Any chance I can have my old username one tenor back and rank restored Please. This has lost me loads of contacts. Barstewards🤔

CNC boat kits...? by DodgyGeezer Lieutenant   Posted: 15 days ago
I'll probably go for a laser cutter in the end. A big CO2 one - but these are powerful tools, and i'd like to have a reliable cutting bed before experimenting with something that might cut the shed in half! The obvious answer is to use some driver software that does handle tool radius compensation - I understand that the Tiny board firmware is now open source with a new name - G2Core. I think it needs a bit more poke than an Arduino Uno, though. I intend to simply slot sheets of balsa into it and crank out kit parts - which means a single pass cut. One issue is how to hold the sheet of balsa down without interfering with the cut. I was wondering about a vacuum base. If you want to observe a laser cutter safely, I hear that the Yank modellers are sealing them in enclosures, and viewing progress through a webcam, which is one answer....

Older Billings Models by Puddle-pirate Petty Officer   Posted: 19 days ago
I recently purchased a Billings Sea King on Ebay. Not certain if I'm going to build it or not. Frankly my workshop doesn't have room for a scroll saw. This kit doesn't contain die-cut parts so a power scroll saw is a given. If I decide to sell it I'll post details. Happy New Year.

Book on Sailing Barges by ChrisG Lieutenant   Posted: 21 days ago
Hello Joe Like you my interest turned a few years to sailing barges and East Coast sailing vessels in general, I was then given a first edition of 'Sailing Barges' signed by the author Frank G.G. Carr and was then even more 'hooked'. For beautiful drawings and a marvellous book try to get hold of a copy of 'Vanishing Craft' by the same author but illustrated by Frank Mason who in my opinion captures the essence of all things maritime in the 18 and 19 hundreds. They sometimes come up on Amazon but aren't cheap. As Nerys states there is lots of stuff out there, best of luck researching this most interesting subject. Regards Chris G

Book on Sailing Barges by Joe727 Admiral   Posted: 22 days ago
I have always like the English sailing workboats and have built some fishing boats. Now my interest turned to Sailing Barges, found this nice book - Sailing Barges by Frank Carr. It's full of etchings, photos and some line drawings. Think this will be helpful in scratch building a barge. Over 450 pages and found a lightly used copy for $18.00 USD, on eBay. Regards, Joe

Smoke/steam output for models by Colin H. Fleet Admiral!   Posted: 1 month ago
Here is the vaporiser I have managed to scrounge, its missing it's battery pack, but have tested with a borrowed battery pack. I am thinking of using a small cylinder pump like a bicycle tyre pump, running on a crank, with its own speed controller allowing for a gentle puff-puff at low speeds, and speed it up for getting a more constant stream of vapour. Another option is a 12v air pump from a fish tank setup, another item in my oddments box. All ideas will be considered before starting the build. I think it should work with most of my larger scale models as it works either vertical or horizontal. Give me your views, cheers Colin.

steam water pump by GaryLCoupland Chief Petty Officer   Posted: 2 months ago
Hi Rick, if you google TVR 1ABB steam engine, you will find a really neat and very good value for money steam engine. I'm afraid this is not cheap and around the £250 mark, mind it does have ball race bearings on the crankshaft. This comes as a kit of parts and you have to build it from scratch. when you have completed this task you will have a really good knowledge of exactly how a double acting slide valve engine works while putting this together, you can save up for a boiler to go with it, the instructions for building are very good almost idiot proof they must be as I have built several. Beautiful engine and powerful it will easily power a hull of one-meter length. Something to think about and Christmas is coming.

Scratch built yacht. by ChrisG Lieutenant   Posted: 2 months ago
I am thinking of building a new sailing yacht from plans which I have yet to acquire. I have 8 A4 pages of drawings of a Goth-USOM from Frank Russell 2014, not sure where I got them from and if they are worthy of the time and effort. The size is about right at 1000mm length and about 1500mm deck to masthead. I have had dealings with Nylet in the past and am sure they would be helpful for rigging, sails etc. I plan to plank build the hull onto wooden bulkheads. Although I have built several model boat hulls using this method before I wonder if I could enlist some help or recommendations from any other members of this group ie choice of plans, how to do it books. Many thanks Chris G

PS Waverley by RNinMunich Fleet Admiral!   Posted: 3 months ago
Hi Martin, My stanchions were pre-drilled, from Graupner ca 30 Years ago. Never 'eard of Modelling Timbers. Timber stanchions!!!😲 I "only" had to drill the holes in the decks (thought that was what you meant), there were enough of them. Much worse though was fitting all the two part portholes 😡 Since fibre glassing the the hull I have to do that all over again😭 Frankly I think anyone who gets so many stanchions made as castings without pre-drilled rail holes need his bumps feeling. I thoroughly agree ref mini drills, too easy to snap fine drill bits. 👍 For precision / repetitive drilling I use my Proxxon mini milling machine as a drill press. If I need more than one of something I knock up a simple jig (usually from hardwood taken from demolished old furniture) to hold the work piece in the machine vice attached to the milling machine cross bed. I took the irritating collet fixing off the mill and fitted a real 3 jaw chuck 😉 Happy 'Vincenting', All the best, Doug 😎

Voltage increasing via regulator by RNinMunich Fleet Admiral!   Posted: 3 months ago
OK, Understood, I think! If you just want to boost the bow thruster why don't you just fit a small 12V (or 11.1V LiPo) just for that? Frankly I might start with an 9.6V batt before I jump from 7.2 to 12V. I assume it's just either On or OFF, i.e. no ESC. As you can see from the specs of your Booster, as the output volts increase the deliverable current (for a given input volts) decreases inversely, as I predicted! Ya don't get summat for nuttin! Soooo, you need to carefully check the specs of the thruster motor; max voltage, current at maximum efficiency versus volts applied! That will tell you the max volts battery that you can safely and most efficiently use, and you can check if your booster can deliver the required current at the voltage needed. I'd just use a separate battery and a servo operated micro switch, but then I'm just a dumb engineer!😲 Bon chance mon ami👍 Cheers, Doug 😎

Voltage increasing via regulator by RNinMunich Fleet Admiral!   Posted: 3 months ago
A somewhat confused question if I may say so Eric!😲 You can't 'regulate up' only down. The regulator's job is to produce a constant lower voltage from a range of higher voltages. I often use one to produce 5V for the RX and servos from a 12V SLA drive battery. A little 3 legged device (type LM7805) which looks just like the power FETs in a high current ESC. My version of a UBEC! 😉 What is this 'regulator' you have? Type number? Manufacturer? Photo? To get 12V from 7.2V you would need to use a Voltage converter (also known as an inverter). This works by converting the DC input from the battery to an AC voltage which can then be increased using a transformer. More elegant (and expensive!) versions use a transistor oscillator and amplifier. This uses hi-power transistors instead of the transformer. The AC output of the transformer (or amplifier) is then rectified back to DC. All this is very inefficient which is why it is normally only used for very light currents, where the losses are not so significant, and when there is no other alternative, not often the case! You can't beat the physics and you will never get the same power out that you put in. This leads to a basic design question:- What is the total current consumption of the load? I.e. the motors. A simple example:- Let's say that at 7.2V the motors draw 10Amps total, i.e. 72W (or VAmps). Assuming a utopian 100% efficiency at 12V this would equate to 6A. Due to the three stages of conversion; DC to AC, transformation / amplification of AC to 12V, AC back to DC, you'll probably be lucky to get an efficiency of around 60% to 70%. Thus if you stick 720W in you'll get around 430 to 504W out. Not much of a gain is it!🤔 Your battery would be exhausted in about 2/3 the time it is now 😡 If your motors draw more than 10A the problem just gets worse. So what is it you really want to do? If you just want to up the volts to your motors stick a 12V SLA or an 11.1V LiPo (3S) in and hope that you don't cook your motors! Frankly I don't really know why you're bothering, tugs aren't sprinters! If you want more pulling power with the existing setup try experimenting with prop sizes and pitch. Will probably achieve much more than fiddlin' about with voltage converters. BTW: All this assumes that the RX has it's own separate 5V battery supply or from a BEC in the ESC. Some clarification needed from your side. Cheers, Doug 😎

Julieth 4 French fishing boat by canabus Fleet Admiral!   Posted: 3 months ago
Hi NPJ I used TITEBOND 3 ULTIMATE WOOD GLUE by Franklin International. Canabus

Mills crankcase by onetenor Fleet Admiral!   Posted: 4 months ago
Colin May I suggest that you cover up that Mills c/case. It will oxidise and the oxide won't protect it from water especially salt water.A crinkle/crackle finish or Hammerite smooth( or hammered if you prefer ) would suit.👍 When are you going to tell me what the proportions of diesel to Methanol were?👍. Approximately will do please!

ELAINE, MOTOR CLEAN UP. by Westquay Fleet Admiral!   Posted: 5 months ago
Hugely long stroke, Colin and I've never seen such a long piston. I am truly astonished that you got even a fart out of it, much less a run. I'm assuming it was built as a marine engine or would you say the finned barrel of an aero engine has been turned down to fit the water jacket? A very large shouldered top to the crankcase. It really is a mystery. I can only suggest home made. Martin Edited to say it's 1.36 cc., so a bit of a nipper.