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>> Home > Tags > brass tube

brass tube
prop tube
brass prop
brass sleeve
brass tube
Tamiya- King George V. Update. by colinhubbard Fleet Admiral!   Posted: 5 days ago
Still painting small parts, but have been limited by illness since November. Also looking for suitable motors. Have decided to use the props supplied, well two of them. Made propshafts from 1mm stainless steel and shaft tubes from 2mm O.D. brass tube. Just need to cut to length, once I have the motors. Will update again soon.

replacing propshaft by RichardSReade Sub-Lieutenant   Posted: 30 days ago
Chris, the boat is the Sea Commander, a boat my late father started in the 60's and I got to grips with it in 2015 but only floated it this year. Mark, I have just got in from the workshop and saw your comments, well guess what, after shortening the new shaft by an inch and running a 4mm die down the inner shaft and trimming it to suit, I had a brainwave, why don't I try to fit the new shaft inside the old tube which would solve the problem with the hole in the hull and keel, so I cut the old one to the required length and tapped the brass bush from the end, the inner diameter of the old tube was too small, so on the lathe with it and fed a drill down it from both ends, as I did not have a drill long enough, so the old tube is in place and the new shaft assy is fitted, all I have to do now is epoxy the whole set up. Mark have I measured the shaft angle correctly, using the keel as the flat line?

Making a Start by Skydive130 Fleet Admiral!   Posted: 1 month ago
So, as per manual, built the tunnel duct former from 6mm ply. This is where i deviated slightly from the manual by making the duct from 3 laminations of 1/32 balsa instead of the depron centre and balsa outside. I used some solarfilm backing to keep the drying balsa off the former to prevent the very wet wood bonding to it, this I found out with my first attempt that stuck firm to the former and was destroyed attemting to remove! Its turned out great and after careful measuring, the rudder support was fitted (3mm Liteply substituted for the depron) and the whole thing sanded, sealed and primed ready to take VW Brilliant orange tomorrow. I made the rudders from 3mm balsa and glass clothed 1 side. ive fitted brass tubes instead of the supplied plastic tube. Last coupl of pics show the hull base with some balsa sheet added to give some extra rigidity without adding to much weight.

Plating by hammer Fleet Admiral!   Posted: 2 months ago
I said on post until the plating finished. Well finished one side, just three more on the other. Drilling the portholes with a cone drill. Holding with grips don't want to cut my fingers. Sized to fit brass tube, (chromed will skim off) That will be the surrounds, fitted after finished painting the hull.

More Prop Shaft by GARTH Captain   Posted: 2 months ago
I'm reading the chat about stuffing boxes & shafts lots of guys in the club I'm in drill a hole into the stuffing box & solder a small tube over the hole to add oil or grease into the box . I goofed when I built my Sea Commander as I had no stuffing box but I had a shaft so I just used a brass tube for the shaft & lubricated the shaft with Sil-Glyde Lubricating compound a Silicone based grease I also use rudder O-Rings to help stop water getting into model through stuffing box. Kind of Mickey Mouse but it works .Except on first run out of water it does squeal a little but in the water it's fine.

Plating by hammer Fleet Admiral!   Posted: 2 months ago
The plating is going essayer with every plate, just a slow job. Finished the garboard strakes & the keel. A brass rod joins the bow. At the rudder post a tube for the rudder stock. No more on plating until it is complete. Unless someone has a question.

Motor problem by RichardSReade Sub-Lieutenant   Posted: 2 months ago
Fair enough pmdevlin I accept what you are saying, however it started as a motor not being big enough for the size of the propeller and then went on further as the shaft was 4BA not 4mm and I could not locate a smaller prop, a plain brass tube and stainless shaft has been fitted,way back in the 60's when it was first started and as I knew nothing about boats in 2015 when I finished the basic structure, I did not know that it would have been the smart thing to fit a shaft with bearings. So this is the way I am going to go, I have ordered the 850 brush motor and the adapter to fit the motor shaft to my red coupling,this I have been assured will be more than big enough to drive the prop without getting hot or needing a water jacket, if this is the case when I fit it and sail it, then result, if not I will then have to go down the path that you suggest, I have nothing to lose trying the larger motor and everything to gain if it works. By the way the batteries are all new

Motor problem by RichardSReade Sub-Lieutenant   Posted: 2 months ago
I have a brass tube and stainless shaft with no bearings fitted at the moment. I thought the advice was to fit a bigger motor and smaller prop, to keep the motor from running hot and to hopefully save the battery, you say an equivalent three blade prop, that is what is fitted (55mm 3 blade) so where does that come on the chart? as if it is still too big then I am no further forward

Motor problem by pmdevlin Fleet Admiral!   Posted: 3 months ago
Hi Richard, molegrips to get the lot out, outershaft and all, its very painful, squeeze tight and twist, you will be supruised how it comes out with some tapping. You could get the bearings out of the top and bottom of your existing shaft, if they look like black plastic, put the shaft in, catch the edge from inside and knock out, they are opush fit, then replace with new 4mm/5mm aceteal, (no doubt spelt wrong)a quid or so each, and are water lubricated. SHG Marine do all of this, they are good at props. If they look metal, they will be either brass, or bronze, and you will prob have to heat the end of the shaft. Try the tapping method, you might get lucky. so now, original outershaft still in place, no bearings either end, and you need a new mm shaft, get stainless. The trick is now, getting bearings to fit if its a real old shaft. Is a good time now to fit an oiler tube whilst everything is out, and clean using thinners etc any gungle inside the shaft. After all this, its not much more effort to get the old one out, and epoxy a new one in, you can buy it complete with inner and outer shafts, bearings, and the right thread, and a couple of test props whilst the wallet is out! Never said it was going to be easy😜

Motor problem by jarvo Fleet Admiral!   Posted: 3 months ago
Hi Richard, looking at the markings on the motor case, it might be a 550 type, and rated at 7.2 volts, so it would seem to be at the top end of its capacity, did you manage to get the prop diameter? also is it plastic or brass? A 600 motor is a bit larger size and power wise but would still fit your motor mount, they are common in power drills so usually have plenty of torque, but can be power hungry. A prop to suit would be about 40mm, 2 blade or 35mm 3 blade both in brass, plastic props tend to be racing types with deep cuffs on the blades, possibly the cause of the burnout! The 850 is a lot larger and more powerful but would need a new mount and again is power hungry, probably needing 12 volts as well. Have a look on ebay 600 motors are about £5, but check to see what the rating of your ESC is, needs to be at least 20amps, although if it survived cooking the old motor it must have a good rating. Add a 15 - 20 amp fuse for protection. Just had a thought, is the prop shaft stiff to turn? should spin freely without the motor connected, might have old oil or grease in the tube causing excessive drag, this could cook the motor as well. A pic of the prop and its size would be a great help. Hope this helps Mark

Stanchions a making! by Skydive130 Fleet Admiral!   Posted: 3 months ago
Those brass screws are tiny and cost a fortune at £2.75p for a pack of 10 x 3! That’s the reason I didn’t buy another 3 packs and used 3mm brass tube for the lower railing holes!

Stanchions a making! by Dave M Fleet Admiral!   Posted: 3 months ago
You could always use aluminium and leave unpainted but difficult the add all the bits although you can get ali solder! Looking good. I turned some brass rod to cap my tubes but I like the idea of brass screws.

Stanchions a making! by Skydive130 Fleet Admiral!   Posted: 3 months ago
Have started to make 30 stanchions from 3mm brass tube. All have a tiny brass screw at the top and a tiny section of 3mm brass tube soldered into a filed groove 35mm down. 4 stanchions either side of the hull have a brass 2mm brass support post. 10 completed 20 to go!

Superstructure finished! by Dave M Fleet Admiral!   Posted: 3 months ago
I attached the plastic tube that came with the original kit with long brass nails. You need to just fit them so that you dont squash the tube. I painted the tube with a darkish red Humbrol before fitting. The fore and aft bits are the bulwarks and there is also a small rail running along the edges of the deck, but set in slightly. On the real boat they carried the stanchion bearers and acted as a foot stop. They also need to have washports to allow deck water to run off. I've attached a few pics of my Solent FYI. I agree it was not a scale model but at the time we used IC engines that required easy and large access and this was one of the more realistic models available. Many like yourself have added lots of detail and the finished result will look the part and will be a credit to you. Looking forward to seeing the finished Oxford Blue hull.

lots of sanding by GARTH Captain   Posted: 3 months ago
Continued with my project Sea commander hull sheets on deck on & lots of sanding for a smooth finish . Used a clear finishing epoxy it had a lot of bubbles after it dried so more sanding needed .Also made the rudder & shaft from brass rod & tube .