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>> Home > Tags > patrol boat

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what have I got? by Westquay Fleet Admiral!   Posted: 7 days ago
Bryan, that appears to be a Fast Patrol Boat. I don't know that it was a kit one, although Aerokits did one, but it looks to be a very nicely done model. You certainly can't get those batteries any more, Ever ready being long dead as a company, but please keep them. They are more museum pieces than the boat! And that motor is something interesting. If you want to replace it with some modern rubbish, I'd be interested in buying it from you for my "Maverick's collection of Unfeasable Motors". I would be tempted to leave the finish as it is as that is so typical of the period (late 50s), but rarely seen any more. It's a very nice boat and deserves to be kept in period. These boats for real, were not that fast, despite being called High Speed Launches, so you don't need some screaming brushless in it. A 400 brushed would be sufficient. Some suitable decals on the hull sides would finish it off nicely. You could paint those side windows dark gloss grey to represent glass from a distance. Cheers, Martin

H.M.S BRAVE BORDERER by RNinMunich Fleet Admiral!   Posted: 21 days ago
Evenin' Rowen, So far so good, nice job👍 Let me go through your comments one by one😉 1) "Moved the battery towards the stern and, at speed, the forefoot lifts slightly clear of the water. The plane is now almost flat. The battery is not well positioned when near the bow." Battery in the bow is almost always bad news🤔 too much weight forward of the CoG or natural balance point when planing. 2) "The 2S battery used was a 4000mAh 30C; suspect this battery does not have the capacity to operate the model. Every motor will run up smoothly until a second one is operated. The first motor then “stutters” and a fuse might blow, this could be indicative of a power surge. Any comments from the electronic experts among the group would be appreciated." First the battery: you may be right. Especially with 3 x4500 kV motors Since you are using 3 ESCs how about feeding each one from a slightly smaller (lower weight) battery? Precondition of course is that all three are equally charged to the same voltage and capacity AND have the same (or very very similar) internal resistance! Complicates the issue of course and motors with a lower kV rating and one power source may well be the better solution😉 Second the 'stutter': How and when did you switch in the second motor? If the first was still at 'Full Ahead', i.e. 'Pedal to the metal!, I might expect the battery voltage to dip and then recover with the sudden additional load and a sharp rise in total current drawn. But no particular excuse for a sudden current rise in the first motor ! Where was the fuse that blew? I suspect in the primary supply lead from the single battery🤓 since with brushless motors you can't fit individual fuse in their supply leads like you can with a brushed motor. BUT you can to the ESCs feeding them!!! You can't get a power surge from a battery, not like a surge on the mains network due to lightning etc! But you can get a voltage dip and recovery if you suddenly present it with an additional load😲 3) "The 3S battery was 10,500mAh and 40C; with this battery all three motors can be run at full speed together and fuses do not blow. It was also very heavy at 1700g, holding the model down." All run up together to full speed or 'switched in' as described above? There's a big difference between a gradual increasing of load on a power source and a sudden step increase! 4) "The motors are 4500 kV. On refection, think a slower motor around, perhaps 2000 kV would have been a better choice." I did think at the outset that 3 x 4500kV was perhaps a little ambitious😲 2000 - 2500 sounds much better, and more controllable👍 Then you could also get good performance results with a single battery of capacity lower and weight 👍 The function of the third (centre) motor for 'action speed' would also be more pronounced👍 5) "Would concur with comments by others that a simple single or two bladed propeller layout for this model is probably best - that is unless you want to capture the true scale layout. The centre propeller seems to have little effect on overall performance, (see above re 4500kV motors- Doug😉) although it will power the model quite nicely when operating by itself. Have had several suggestions about how best to use the centre propeller. Will think about them and decide later how to do this when I start to finish the model." As a 'Scale Purist' (as far as my skills and tools allow!) personally I would frown on the use of 2 blade props, much less only a single prop. Do that in a fictitious power boat if you will, but for 'Brave Borderer' ? 😡 Do her justice please😉 Many three screw (😲) boats (including the full size originals of this era) only used the third motor for additional manoeuvring speed in action situations. My personal experience of FACs (Fast Attack Craft) and FPBs (Fast Patrol Boats) over the last three decades shows me that the three screw configuration has been largely dropped, especially since the introduction of much more powerful engines such as improved diesels and gas turbines. Many use a combination of diesel, for cruising, and gas turbine for 'action speed', so called CODAG, COmbined Diesel And Gas turbine. 6) "The 2 blade Hi – speed propellers both increased performance and current draw. The model is more than fast enough with the original scale layout." As I believe the 2 blade props were of larger diameter (and perhaps also of larger pitch) than the 3 bladers the higher current draw is a logical conclusion! Stick with the scale config! 👍👍👍 7) "Will purchase a lighter, 3 S battery as that seems the best choice for performance and weight." 👍 but don't overdo it to the other extreme by reducing weight and therefore capacity too much😲 You want a decent sailing time don't you? 8) "Testing using the bare hull with a minimum of detail worked well. For a models with a complex power train, this is a good approach as access to the internals can be gained easily. Nothing worse that finishing a boat carefully just to find the performance disappointing. Then having to to rip it apart to make major modifications or adjustments!" Heartily agree 👍👍👍 Bon chance mon ami😊

advise required by RNinMunich Fleet Admiral!   Posted: 27 days ago
Hi TJ, we've been here before! See your previous query and our answers in - https://model-boats.com/forum/general-resources/40352?t=1527... I have some experience with the TGY-i6 set recommended there and a very good 100% English manual (no bl..dy Chenglish!) so can help with the setup if you need it. See attached. This is the German branded version I bought here in Munich where I live. Apart from the German brand name 'Reely' it is identical to the TGY and FlySky versions. If you need any help setting it up PM me. I think the Planet stuff and similar may disappoint you cos the display does not tell you so much about what's going on as the TGY sets do. I have set mine up for a variety of boats / ships including my Sea Scout cabin cruiser, an H class 1936 RN destroyer and a 1936 German U-Boat type IIA. No problems 😉 Whatever you do have fun with it and welcome to the 'Nutters Community' 😉 Cheers, Doug 😎 BTW: As an Ex Pat who has lived here (Munich) for over 30 years and has worked on several versions of Fast Patrol Boats all over the world, including Lürssen Werft types, please note that the boat was called a 'Schnellboot' = Fast boat! No more😉

Krick Police Launch by MouldBuilder Commander   Posted: 27 days ago
I have just started to build the Police Launch that I have had for a while. Work commitments have left me with little time lately but hopefully I can get a good run on this one for a while. I hope to finish it by late July which just leaves me enough time to send it to Hungary so that I can test it. The kit is said to be good for a beginner. This would be good as many years ago I built a Patrol Torpedo Boat which took me five years. I am currently restoring this one as well but I think that will take most of this year to complete.😁 I have started by buying the speed controller. The motor is a 400 brushed. Probably not going to be too difficult to keep up with this one. The kit itself is not too bad considering the price, but I do feel that the ABS vacuum formed hull could be of a slightly better quality. Also I am finding the ply wood to be rather brittle. Does anybody have an idea for a good filler to use to fill the chips which will take to acrylic paint. I have prepared the hull and added the propeller shaft and rudder holes. Care taken here to avoid splits in the plastic. Cellotape on both sides before drilling helps.🤓 I have assembled the internal parts which hold the motor, battery and rudder and also fitted the prop shaft.😲 I will start on the deck and superstructure next. An additional note about the kit. The instructions are reasonable but they are in black and white which is not helpful considering they are photograph based with text. I found a PDF on the web which is in full colour. Why don`t Krick supply this. Surely not that expensive.🤔

H.M.S. BRAVE BORDERER by reilly4 Captain   Posted: 2 months ago
Hi Rowen, I have had water cooling on all my patrol boats running at 12Volts, whether brushed or now brushless. For the brushed motors I have used aluminium tube coils with water pickups between the propellers and rudders. I did try water jackets a couple of times but found too much friction loss and therefore lack of flow. For the newer brushless outrunners I use a brass tube soldered to a brass plate across the front of the motor fitted between it and motor mounting bracket. I agree with Doug with regards to the disconnection of the red wires on the ESC's. This is now common practice, especially if you have an external receiver battery.

Genesis by MouldBuilder Commander   Posted: 2 months ago
[Score: 9/10] 38"/3000g Genesis Capable of 15mph and a runtime of 20mins Single Propellor (2 Blade S Type 35mm) Direct Drive to a 3674 2074KV (2 Blade S Type) Powered by LiPoly (14.8v) 4Amp/h Batteries Controlled Through Hoddyking 125A Water Cooled (25Amps) ESC - Comments: I bought this boat to give me some running time whilst I complete a major overhaul of my Patrol Torpedo Boat and build my Police Launch kit. I plan to try it for the first time next week in my local river. I would like to thank Doug (RNinMunich) for all his help to get the boat connected electrically as I have not used brushless before and needed to complete quickly. The boat is on it`s way Doug. Note. It is faster than 24km/h. Ran out of options. The instructions say 55km/h.

H.M.S BRAVE BORDERER by RHBaker Fleet Admiral!   Posted: 3 months ago
Thinking of a future project and decided upon another launch type vessel. My earlier Daman 4207 project gave an interesting model with good performance. The Brave class of FPBs (Fast Patrol Boats) caught my attention. Can remember the incredible performance they offered when entering service. Only two of the class were used by the RN, although variants were used by other navies. Have decided to use proprietary Glass fibre hulls in future as they probably cost little more than building from scratch using wood and resin. They give a robust and watertight hull, but one which still requires thought to complete properly. There are several companies that offer a “Perkasa” hull, a Brave class derivative with an almost identical hull. From previous experience have decided to limit my models to 40” long, larger vessels become difficult to transport and handle. After much research considered the hull offered by MTB Hulls in Gibraltar met my requirements best. The inquiry to MTBHulls was well handled; the quotation acceptable, so placed an order. Was pleasantly surprised at the shipping costs. From the UK these often approach the cost of the hull, but from Gibraltar they are much more reasonable. Delivery only took 7 days.

Vivace Patrolboat by RNinMunich Fleet Admiral!   Posted: 3 months ago
Much easier to buy Deluxe Materials Ezekote. Krick carry it in Germany and most probably send to Denmark. Don't get so many odd looks in the shop either 😲😉 But, Whatever Floats Your Boat 😁

Vivace Patrolboat by onetenor Fleet Admiral!   Posted: 3 months ago
Find some ladies slip underwear made of rayon (artificial silk) and dissolve it in Amyl (Ethyl) Acetate. Voila Dope. This solvent is the one smelling of pear drops and is nicer to use for that reason.Don't pinch wife's best stuff. Other fabrics of this type might work too. Obviously test a sample first. Acetate sheet might work also. Make it as thick as you like.Cut bits small to dissolve more quickly. Other solvents may work but you need to test first.👍👍

Renovating my Aerokits Patrol Torpedo Boat. by BOATSHED Fleet Admiral!   Posted: 3 months ago
Brushless motors are fantastic, but you mat still find that prop will not be workable with a brushless. You may still need to experiment with props of different types and sizes. Unless you find someone with the same power set up and they can tell you the prop size that it works well with. I even found that rudder sizes made a difference on how the boat performed on the water. They can act as a brake and even cause the boat ti dig in on turning. Any way good luck and happy boating.

Renovating my Aerokits Patrol Torpedo Boat. by MouldBuilder Commander   Posted: 3 months ago
Thanks Boatshed. I have now purchased a brushless motor which I am making a mount for. I have a feeling that the lack of speed will be dramatically improved. I hope the hull will stand up to this dramatic improvement in power.😊

Renovating my Aerokits Patrol Torpedo Boat. by BOATSHED Fleet Admiral!   Posted: 3 months ago
You say the MFA motor was strong but slow ?? Have you tried changing the prop and trying different sizes. I put a 4 bladed on a small version of a Crash Tender that I have built and it was a failure, I have since changed it to a smaller 3 bladed prop and it is better but now have 3 different sizes to change to and see if they perform better. I know they are not cheap., all 3 came to just over £35 but the first one I tried made a very big difference. You could even try smaller nylon props as they are a lot cheaper. I know they do not look authentic but when on the water they cannot be seen. If you have her on display at home you can always change the prop back to the nice brass one just for show.

Renovating my Aerokits Patrol Torpedo Boat. by dennisw Lieutenant   Posted: 3 months ago
Hi mouldbuilder. I have never had any problems using stainless shafts you may need a oiling point if using a long time. check this web site.

Renovating my Aerokits Patrol Torpedo Boat. by MouldBuilder Commander   Posted: 3 months ago
Hi Dennis. I have already purchased a brushless motor which will improve the performance significantly, I hope. One of my concerns for this change was whether the prop shaft could handle the four fold increase in RPM. The shaft is around 12" long. I am considering whether to make a nylon/acetal bush and push it up the shaft approximately half way to try to eliminate shaft whip should it occur. Is this thought to be necessary or am I concerned about nothing.😊

Renovating my Aerokits Patrol Torpedo Boat. by dennisw Lieutenant   Posted: 3 months ago
see build blogs on this web site 👍 ignore my last blog about aerokit site.