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>> Home > Tags > mtb

mtb
mtb
Guestbook Post by SpiderBruce Petty Officer   Posted: 7 days ago
Hello, Joined this site as returned to model boats after some years absence and think this site will be useful for info, hints etc. There are no boating hobbyist in my town, nearest boating lake is the superb one at Basingstoke, of which I am a member. Main work is finishing off a Thames Barge (kit)and a Vic Smeed designed Thornycroft MTB. Wishing you a fair wind in your sails. SpidedBruce

HMS BRAVE BORDERER by RHBaker Fleet Admiral!   Posted: 22 days ago
Winter seems to encourage modeling, have spent many hours in hibernation working on the deck and superstructure details. A supplier offers a full set of Perkasa fittings, most of which would work on the Brave B. At one point considered buying a set. They are made in both resin and cast metal. Eventually parsimony prevailed, so only purchased a small number of hatch covers and other intricate shapes that would be difficult to make well. The items duly arrived and the quality is good. Was surprised by the weight though, so am pleased had embarked on making the other items from the usual materials. There should be an overall weight saving, along with a reduction in my surplus styrene and wood stock. One of the design tenants of the Brave class was flexibility. The vessel could operate as a MTB, MGB or Raider, or with a mixture of these capabilities. The weapon mountings were designed to allow armaments to be installed and moved around to suite the requirements of the role. Have reviewed many Brave class photographs trying to establish a “standard” armament configuration, to reproduce. Not only does the configuration define the weapons installed, it also establishes the ammunition and flare storage cabinet arrangements. Eventually decided upon the 2 x 40mm Bofors gun arrangement with 2 x 21” torpedoes and 4 x extended range fuel tanks. The model is now essentially complete. No doubt as I keep examining it will add further small details and refinements. Only disappointment so far is that it does not achieve the original weight target of 6 lbs, it is 9.5 lbs. The 6 lbs may possibly have achievable using one screw and motor etc., but once three are installed, not likely. The real test is when finally back on the water. Will close this blog then with a concluding report.

Fairmile D 1/24 Scale Build by Smiffy Sub-Lieutenant   Posted: 27 days ago
Nothing really to add to the above conversations, but here are three pictures of a superbly detailed MTB variant dog boat that was exhibited at last weekend's London Model Engineering Exhibition. Unfortunately I don't have the details of which club stand it was on or who the builder was - perhaps someone knows as he deserves some recognition. I still haven't made a start on my D as Miranda is still a work in progress (very slow progress!) and my model engineering activities are taking most of my time. Smiffy

Fairmile D 1/24 Scale Build by RHBaker Fleet Admiral!   Posted: 27 days ago
If you decided to go the gf hull route suggest look at the MTBHulls site. The have s welll deserved reputation for accuracy and quality

Fairmile D 1/24 Scale Build by reilly4 Fleet Admiral!   Posted: 28 days ago
I am afraid that I disagree with the comments about Doug. They do not reflect Doug's comments or intentions. We are here to offer assistance to those that request it and others that may learn from the comments etc. Doug offers some of the best most practical advice from his experience. A Fairmile D had 4 engines and props. If you want to recreate it as a true scale model then that is the the aim. You are entitled to have one prop, one engine and one SLA battery in your boat. It may plane for approx 10 minutes before it slows and drops off the plane. I had such an arrangement a few decades ago in an old MTB, but have learned from it and moved on. I would not advise this arrangement with all the newer motors, battery types and ESCs available. My Fairmile D has 2 x Speed 700 motors and NiMH batteries. It runs on plane for an hour or more. My newer Vosper MTB and La Combattante III boats have 2 x brushless motors each and the same NiMH battery packs - my choice. Other people use LiPo batteries. We respect all modellers and their quest to build 'their' own models. Nothing wrong with having the best advice available, so modellers can make up their own minds.

Fairmile D 1/24 Scale Build by RNinMunich Fleet Admiral!   Posted: 29 days ago
Hi Sakibian, Reilly built the Fairmile MTB, NOT the Schnellboot, as far as I know 😉 Although I do agree that it is a stunning model, as is Reilly's MTB. Great detail and realism. Hat off Reilly 👍👍👍 G'night 'Up Over' and G'mornin 'Down Under'. 😎

Motor, mount & prop-shaft. by BOATSHED Fleet Admiral!   Posted: 30 days ago
Thanks for your reply. I am more of a speed freak. I love the Vosper /MTB's style hulls as you can really push them to there limits, as I can also with the deep V huntsman style hulls. My Proboat Miss Geico catamaran I can run flat out even on turns. But am unsure about fitting an out runner, I have scaled down the Crash Tender to 28" and have just put in a small outrunner but very apprehensive of running her. This is because i'm unsure of overheating and catching fire. Silly rally as she is a fireboat. But as you have one in your Crash Tender with no problems, then I will finish her off and give her a run. Thanks for your help. I am watching this build as eagerly as I did your wonderful Crash Tender. I cannot wait to see the en result and some video of her on water. I'm sad I wasn't able to get along to the show this weekend.

Cabin detail part 5 speed control & compass by BOATSHED Fleet Admiral!   Posted: 1 month ago
What do you mean when you say you will inspect it for real this weekend. Where are you going to find a REAL RAF Crash Tender. I didn't think there were ANY left in existence. I have seen MTB 102 several times and spoken to the crew of that day and when I asked could I come on board to have a look around, they always decline saying sorry insurance will not cover us for that.

All hooked up, nowt happens... by jbkiwi Commander   Posted: 2 months ago
Hi Steve, I have the same problem with the ESCs in my HSL. They are cheap Chinese car models and can be a bit tricky to get into reverse quickly. I have found that either waiting a few seconds in neutral before trying reverse, or going to neutral and flicking the throttle forward a few clicks and back to neutral quickly (in .5 sec) usually sorts it. I think it may be that the motor stops somewhere that the cheaper ESCs can't detect (bit like an old car starter that hits the bald spot on the ring gear and you have to jog it a bit) so you have to move it slightly for it to 'see' it (maybe the capacitors also). Brushed ESCs don't have that problem as the brushes are in constant contact, rather than relying on correct positioning in Brushless motors. You will also find that some Chinese motors are not timed/wound correctly, and you can feel weak or 'floaty' spots between certain magnets which may also cause a problem. Perhaps trying a higher or lower ESC timing by 1 step either way might help if you have that capability. If it works by just flicking the throttle method, you can just slow down as you come in and take you time finding reverse in a scale like manner (remember the PT109 movie where they went through the shed on the wharf) You can also try swapping the other pairs of wires on the motor (same direction but different pairs). If you are still not happy then it might be time as Doug said, for a better ESC with instructions. Get one which has all the programing features, (fwd, rev , timing, auto batt detection (lipos or NmH etc) starting mode- ie soft,hard, brake etc) this will give you plenty of options for adjustment. Doesn't have to be a marine one, a good known brand car/buggy one will do and if you have any heat problems you can always put a mini fan on it. Water cooled marine ESCs are really only for high amp high speed setups. My 36"HSL has 2x 30A car ESCs running 2x 28/45 2000kv water cooled motors and ESCs never get even warm. Pictured are the ESCs I am using from HK which have an output plug for a fan if needs be. The 3rd pic is the brushed ESC types (EBay, AliExpress) I am using, which have no problems with reverse transition (see vid section re Thornycroft MTB maneuvering) also the HSL vids to give you an idea of how these brushless ESCs perform even with the minor reversing problem. Hope you get it sorted.

HMS BRAVE BORDERER by TOWN3810 Sub-Lieutenant   Posted: 2 months ago
HI a chap in our club sails a Vosper mtb ,quite fast on a single screw , planes easily even on its brushed motor . every time he tries to turn at speed the boat dives bow going under water . we think the rudder , when the boat banks is taking on a horizontal conponent like an aeroplane elevator . we seem to use rudder sizes much larger in comparison to full size boats which wont help Cheers Ian

MTB741 Fairmile D by Joburg-sailor Sub-Lieutenant   Posted: 2 months ago
Don't know how I could have missed this one! Brilliant detail. Something I am trying to emulate.

Vosper MTB by RobbieMcKennan Chief Petty Officer   Posted: 3 months ago
I bought this boat as a renovation project, almost finished now

MTB 49 by jbkiwi Commander   Posted: 3 months ago
[Score: 5/10] 36"/2400g MTB 49 Capable of 5mph and a runtime of 60mins Twin Propellors (3 Blade 25mm) Direct Drive to a 380 27MM (3 Blade) Powered by NiCad (7.2v) 2Amp/h Batteries Controlled Through CHINA (5Amps) ESC - Comments: Scratch built Thornycroft MTB from a 1960s Vic Smeed plan. Boat is 40yrs old from start till now. Bought plans in 1968 and finished 20 yrs later working on and off. Was twin prop with single Futaba ESC, on 27Mhz then an Electronize ESC on FM 40 Mhz now have just converted it to twin car ESCs and added a sound unit and is now run on 2.4 . Has a 100mm 12v computer fan for cooling with heat sinks on the motors. Has separate cabin lights and running lights.

Thornycroft MTB by jbkiwi Commander   Posted: 3 months ago
Thanks for the nice comment, and yes it is a very nice pond, except when there are a lot of those things with rags tied to sticks racing (shouldn't say that as I've sailed full scale all my life and still have 2 small yachts), and the buoys they leave there are a pain also, (easy to forget they are there) It was full of hire carp (yes hire carp) which were removed as the council wasn't paying the company or some such hassle, but I'm sure they missed some and they will soon multiply and keep the weed down. Bought the plans for the MTB around 1968 and took around 20yrs to finish it. I still have the plans and it only took me about 40yrs to find a photo of the original boat (bit late by then!).

Thornycroft MTB by Donnieboy Fleet Admiral!   Posted: 3 months ago
Nice job.Great to see a boat running built from a Vic Smeed plan.Should do good in a steering competition with the manouverability you have.Lovely boating pond.