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Model Boats Website
Commander)
Midshipman)
Liked Final reveal! 4 years ago
Liked Mast and rigging completed 4 years ago
Liked Barrels finished, shark jaws started, more superstructure painting. 4 years ago
Liked Cabin roof mechanism 6 years ago
Liked U37 7 years ago
United Kingdom
Recent Posts
📝 Lipo vs Li-ion
1 month ago by 🇬🇧 pmdevlin (
Lieutenant)
Lieutenant)✧ 18 Views · 1 Like
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Ha ha thanks!
This is a nice video. The sounds are on the boat tracks taken from the jaws film so actual real music and dialogue. It's operated from a trigger switch via transmitter, and the smoke unit now also comes out of the engine hatch
This is a nice video. The sounds are on the boat tracks taken from the jaws film so actual real music and dialogue. It's operated from a trigger switch via transmitter, and the smoke unit now also comes out of the engine hatch
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Len1
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📝 Lipo vs Li-ion
1 month ago by 🇬🇧 pmdevlin ( Lieutenant)
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I made my own smoker, spent ages trying to create black smoke, carbon, diesel oils, and so on, even bIts of rubber!
rubbish quality video but gives you the idea, its wire from a hairdryer wrapped around a piece of dowel covered with some roof insulation soaked in oil in a metal box, with a small pc fan to blow the smoke out, juts need to remember to fill up the oil via the exhaust stack every 15 m ins or so or the hull will get hot and then you do get black smoke. !
rubbish quality video but gives you the idea, its wire from a hairdryer wrapped around a piece of dowel covered with some roof insulation soaked in oil in a metal box, with a small pc fan to blow the smoke out, juts need to remember to fill up the oil via the exhaust stack every 15 m ins or so or the hull will get hot and then you do get black smoke. !
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Len1
📝 Raf Tender PAINT Colour
1 year ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 34 Views · 2 Likes
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here are the colours, taken from Vosper original plans. Like I said earlier, the cabin sides are darker, but thats if you wanbt to be real picky!
Deck was painted in cerrux none slip paint. You can achieve this by first dusting with light coats a textured paint, till you get the effect you want, then paint over in bs631 or whatever you use. Using modelers license 😁 we all paint our cabin tops in a real glossy finish, can you imagine that actually happening! all the crew would fall off😆 then same with the hull, by the way, I did this! just because I thought it looked better
Deck was painted in cerrux none slip paint. You can achieve this by first dusting with light coats a textured paint, till you get the effect you want, then paint over in bs631 or whatever you use. Using modelers license 😁 we all paint our cabin tops in a real glossy finish, can you imagine that actually happening! all the crew would fall off😆 then same with the hull, by the way, I did this! just because I thought it looked better
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📝 re keil craft raf tender
1 year ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 38 Views · 5 Likes
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Stephen the site owner was doing 3 d printed sets of fittings etc, why not ask him? he used my boat some years ago as a template for them. I bought a set of white metal fittings, they where dreadful, weighted a ton, and really bad, they went in the bin and I made my own
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📝 Raf Tender PAINT Colour
1 year ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 39 Views · 3 Likes
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Hi,
regarding the colours, I was very friendly with Peter Dimberline, and Peter Henshaw, both where original members of what was the Fireboat website, I was not far behind them!. PD knew someone that served on one of these boats, and between the 3 of them, they found the original Vosper plans etc, one of which had the paint codes.
BS639 was the deck colour, but the cabin sides was a darker grey, I dont have the code to hand at the mo. PH painted his boat this way, and it just didn't look right. I painted my 3 foot and 4 foot using BS639, but we reckon over time the correct shade was lost as time went on, you can see whilst its the correct code, it looks a bit green. I went to great lengths to get things right, but we can all use a bit of modelers license to create what we want. There where only two of these boats, they where not mass produced, it was infact a failed project as they arrived too late. The flying boats they where supposed to support where pretty much at the end of their useage
regarding the colours, I was very friendly with Peter Dimberline, and Peter Henshaw, both where original members of what was the Fireboat website, I was not far behind them!. PD knew someone that served on one of these boats, and between the 3 of them, they found the original Vosper plans etc, one of which had the paint codes.
BS639 was the deck colour, but the cabin sides was a darker grey, I dont have the code to hand at the mo. PH painted his boat this way, and it just didn't look right. I painted my 3 foot and 4 foot using BS639, but we reckon over time the correct shade was lost as time went on, you can see whilst its the correct code, it looks a bit green. I went to great lengths to get things right, but we can all use a bit of modelers license to create what we want. There where only two of these boats, they where not mass produced, it was infact a failed project as they arrived too late. The flying boats they where supposed to support where pretty much at the end of their useage
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neilmc
📝 Spray Paining problem....
3 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 33 Views · 2 Likes
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i had exactly the same, with white halfords rattle cans, after careful prep, wiped on cloths, etc, warmed cans, and so on, changed brand and the issue went. Im not a fan of halfords paint, the high build primer can also cause issues. I was painting on plastic also, which had been primered with plastic primer, then etched, and then regular primer. unfortunately its a rub down and start again☹️
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neilmc
robbob
📝 yep 120a
3 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 38 Views · 2 Likes
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ive used those esc's for aircraft, they are very good, and more top end of what hobbyking sell. You can programme without the card, but its a fiddly affair, following series of beeps etc. As said, plane dont fly backwards (however there are a couple of water planes that do have reversing esc) I would sell it, and buy a dedicated boat esc, some even have the option of water cooling
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Martin555
Scratchbuilder
📝 Veron Huntsman 28 brushless belt driven
3 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 42 Views · 3 Likes
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Thanks for reviving that video! I run a belt drive gearbox, the boat should really be twin screw, at 25mph its on the verge of turning over due to the torque roll, I promised to do it many times, but cant bring myself to tear it apart😁
I prefer the 28, its a bit rare, I've taken a lot of pics, and got a fair few videos, but this one years ago is my absolute fav!
I prefer the 28, its a bit rare, I've taken a lot of pics, and got a fair few videos, but this one years ago is my absolute fav!
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RNinMunich
NigelTailyour
Madwelshman
📝 3 foot Perkasa for sale improved and reduced since last offer
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
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now sold
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📝 3 foot Perkasa for sale improved and reduced since last offer
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 28 Views · 1 Like
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Hi all,
tried to sell this some months back, no interest, so I decided to do some improvements, to make it perform better, and easier to use. I removed the triple screw set up, and replaced with a single motor. To make things as easy as possible to use, I have installed a Graupner 700bb brushed motor. You can use any battery chemistry with this, and it offers a wide voltage range. I have also removed the scale rudders in favour of slim ones. As its gone from triple to single screw, the prop wash isn't over the rudders now, so there is possible improvements to be had, I just used what I had to hand.
Price reduced with two options
1/ all running as per video, Ill leave the orange receiver in if someone is using spektrum transmitter £150
2/ no running gear, just bare bones boat £100
This is a bargain for a real nice hard grp plastic model. It has nice detail, and no wood rot or delamination worries. It will offer a nice project for someone who wants to make it run and perform to suit their own style. I will include the original 3 motors, props, shafts etc so if you want to go back to triple screw you can.
I can deliver to Wirral or Cheshire (contact me first) or arrange a meet up (all subject to social distancing rules) if you are still housebound subject to none refundable deposit as I don't want messers. My latest RC Plane project arrives on Friday, I desperately need the space and money!
tried to sell this some months back, no interest, so I decided to do some improvements, to make it perform better, and easier to use. I removed the triple screw set up, and replaced with a single motor. To make things as easy as possible to use, I have installed a Graupner 700bb brushed motor. You can use any battery chemistry with this, and it offers a wide voltage range. I have also removed the scale rudders in favour of slim ones. As its gone from triple to single screw, the prop wash isn't over the rudders now, so there is possible improvements to be had, I just used what I had to hand.
Price reduced with two options
1/ all running as per video, Ill leave the orange receiver in if someone is using spektrum transmitter £150
2/ no running gear, just bare bones boat £100
This is a bargain for a real nice hard grp plastic model. It has nice detail, and no wood rot or delamination worries. It will offer a nice project for someone who wants to make it run and perform to suit their own style. I will include the original 3 motors, props, shafts etc so if you want to go back to triple screw you can.
I can deliver to Wirral or Cheshire (contact me first) or arrange a meet up (all subject to social distancing rules) if you are still housebound subject to none refundable deposit as I don't want messers. My latest RC Plane project arrives on Friday, I desperately need the space and money!
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Martin555
📝 Perkasa for sale
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 30 Views · 0 Likes
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Hi all,
now things have started to relax somewhat, I'm back to work, travelling between Wirral and Crewe, so can now offer a drop off to Wirral or Cheshire (please ask first) to any prospective buyers, it can be dropped at the end of your path, subject to full payment in advance, this offer is not to look, if you need to look first then its a trip to north Wirral.
I need the shelf space, and the funds for something else, so I want this gone now, so price reduced to £180.
thanks
now things have started to relax somewhat, I'm back to work, travelling between Wirral and Crewe, so can now offer a drop off to Wirral or Cheshire (please ask first) to any prospective buyers, it can be dropped at the end of your path, subject to full payment in advance, this offer is not to look, if you need to look first then its a trip to north Wirral.
I need the shelf space, and the funds for something else, so I want this gone now, so price reduced to £180.
thanks
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💬 Re: Final reveal!
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
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well done its real nice, hopper is my fav of your figures!
now.… I tried various ways of having a shark, tried towing one, and tried various submarines, all failed, ive got the plans from glyn guest to build "nixie" which is a small easy rc sub, if I can get that to work, with a dorsal fin, great!
now.… I tried various ways of having a shark, tried towing one, and tried various submarines, all failed, ive got the plans from glyn guest to build "nixie" which is a small easy rc sub, if I can get that to work, with a dorsal fin, great!
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Martin555
📝 Info on this boat
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 23 Views · 2 Likes
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Its a fireboat (crashtender), either 4 or 3 foot, its how this forum started, check out the logo, so there is a wealth of info here
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RNinMunich
Martin555
📝 Graupner 6v Smoke Generator
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 29 Views · 4 Likes
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simple home made:
small metal box, maplins used to sell these, you can pick the size and shape to suit your model, ebay is full of them.
get a small fan, the sort from a pc etc, again, size to suit, and it will run on your drive battery, so when buying, check the operating voltage. Cut a hole a bit smaller than the fan in one side of the box, the fan will drive the smoke out. Between the fan, and the box, have a piece of thin plastic, it will need to move to make the hole bigger or smaller, to be adjusted when testing so you can limit the amount of air entering the box via the fan, as the fan speed will be constant.
Drill small hole either end, make up two rubber grommets for these holes. Next, pinch the heating element wire from the missus hairdryer, or something else!. make a wick from a wooden dowel, wrap (coil) teh wire around this, and have it enter and exit the box, the grommets are so the wire does not touch the metal box, as it will short out. using ole fashiooned loft insulation, fill the bottom half of teh box, and rest the dowel on this inside the box.
soak the insulation, and the dowel with baby oil (I moix baby oil with disco smoke fluid, but you wont be able to get this, baby oil works fine)
Using a spare channel on your transmitter, a switch on/off, make up a microswitch of some sort so when you flick the switch, the microswitch makes the circuit. The feed will be either end of the heating element wire. Now, the supply voltage, and length of wire, will determin how hot it gets, this will need experimentation on your behalf, too hot, it will just burn out, too cold, it wont heat up.
Wire the fan into the circuit, so it comes on, the fan will blow the smoke up the exhaust etc, or whatever you use.
Thsi is the basic principle of the rc tank smokers, its just hot oil smoking. Every 15 mins or so, you will need to wet the wick again, I use a syringe and just pour down the funnel on my boat.
There it is, a bespoke smoke machine, using probably thingsd found around the house, or bought very cheaply
My box is directly under the exhaust stack, you could use tubing to direct the smoke
small metal box, maplins used to sell these, you can pick the size and shape to suit your model, ebay is full of them.
get a small fan, the sort from a pc etc, again, size to suit, and it will run on your drive battery, so when buying, check the operating voltage. Cut a hole a bit smaller than the fan in one side of the box, the fan will drive the smoke out. Between the fan, and the box, have a piece of thin plastic, it will need to move to make the hole bigger or smaller, to be adjusted when testing so you can limit the amount of air entering the box via the fan, as the fan speed will be constant.
Drill small hole either end, make up two rubber grommets for these holes. Next, pinch the heating element wire from the missus hairdryer, or something else!. make a wick from a wooden dowel, wrap (coil) teh wire around this, and have it enter and exit the box, the grommets are so the wire does not touch the metal box, as it will short out. using ole fashiooned loft insulation, fill the bottom half of teh box, and rest the dowel on this inside the box.
soak the insulation, and the dowel with baby oil (I moix baby oil with disco smoke fluid, but you wont be able to get this, baby oil works fine)
Using a spare channel on your transmitter, a switch on/off, make up a microswitch of some sort so when you flick the switch, the microswitch makes the circuit. The feed will be either end of the heating element wire. Now, the supply voltage, and length of wire, will determin how hot it gets, this will need experimentation on your behalf, too hot, it will just burn out, too cold, it wont heat up.
Wire the fan into the circuit, so it comes on, the fan will blow the smoke up the exhaust etc, or whatever you use.
Thsi is the basic principle of the rc tank smokers, its just hot oil smoking. Every 15 mins or so, you will need to wet the wick again, I use a syringe and just pour down the funnel on my boat.
There it is, a bespoke smoke machine, using probably thingsd found around the house, or bought very cheaply
My box is directly under the exhaust stack, you could use tubing to direct the smoke
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Martin555
Peejay
cormorant
RNinMunich
💬 Re: Mast and rigging completed
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 36 Views · 1 Like
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coming along very nice, bet you cant wait to get it wet!
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Martin555
💬 Re: Quint takes shape!
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 36 Views · 3 Likes
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great work on quint, looking forward to brodie, I found him quite hard to replicate, as Hooper and quint have distinctive features you can play on
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Skydive130
RNinMunich
📝 New member advice required on what to use
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 24 Views · 2 Likes
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Hi Robert,
Im assuming that picture is generic, its not your finished boat?
Brushless motors are fine for any application, the choice after the spec is outrunner, or inrunner, the former probably the cheaper and more readily available. Just ensure that you have nothing danging around next to it as the outer can rotates, very fast👍
Water cooling only if it needs it, it probably wont, however you will find that most specific boat brushless escs will have water cooling, if it has it, (hobbyking are best source) then use it, as some of the hobbyking escs rely on this as they don't have cooling plates inside. Its a simple thing to plumb it in, make you own water pickup, and exit if you have the tools, the shop bought ones are cheap, but sometimes look ugly. Simple bit of brass or ally tube, between the prop and rudder, bent to face the water from the prop,epoxy into the hull, some plastic tube (you will have all this from planes!) to the esc, then from esc to an outlet, at transom tends to be the nicest looking!
Paul
Consideration is the motor shaft diameter, and the propshaft as you will need a coupling, that's capable also of the higher revving motor.
SHG Marine are a model boat parts dealer, they sell all of the couplingsd etc, propshafts, and usua;lly have a good srtock of plastic two blade "x" props, grab a couple to test with , 45mm, 50mm I woulds suggest
Pics for reference, the HK escs in the pics are bullet proof, I made water cooling plates for the motors on that boat, it didnt need them, and exited the water pickup via the two engine exhausts on the transom, looked cool when the boat was running!, inside the boat, I used alloy rod instead of plastic tube just for ashthetic reasons as it was a four foot boat and a long run from teh pickups to the esc's
Im assuming that picture is generic, its not your finished boat?
Brushless motors are fine for any application, the choice after the spec is outrunner, or inrunner, the former probably the cheaper and more readily available. Just ensure that you have nothing danging around next to it as the outer can rotates, very fast👍
Water cooling only if it needs it, it probably wont, however you will find that most specific boat brushless escs will have water cooling, if it has it, (hobbyking are best source) then use it, as some of the hobbyking escs rely on this as they don't have cooling plates inside. Its a simple thing to plumb it in, make you own water pickup, and exit if you have the tools, the shop bought ones are cheap, but sometimes look ugly. Simple bit of brass or ally tube, between the prop and rudder, bent to face the water from the prop,epoxy into the hull, some plastic tube (you will have all this from planes!) to the esc, then from esc to an outlet, at transom tends to be the nicest looking!
Paul
Consideration is the motor shaft diameter, and the propshaft as you will need a coupling, that's capable also of the higher revving motor.
SHG Marine are a model boat parts dealer, they sell all of the couplingsd etc, propshafts, and usua;lly have a good srtock of plastic two blade "x" props, grab a couple to test with , 45mm, 50mm I woulds suggest
Pics for reference, the HK escs in the pics are bullet proof, I made water cooling plates for the motors on that boat, it didnt need them, and exited the water pickup via the two engine exhausts on the transom, looked cool when the boat was running!, inside the boat, I used alloy rod instead of plastic tube just for ashthetic reasons as it was a four foot boat and a long run from teh pickups to the esc's
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Martin555
Newby7
📝 46"Wooden RAF Crash Tender
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 35 Views · 3 Likes
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great reply Doug, you got to the specifics there.
In Summary Ray,
keep your esc, its fine, but is it for brushless, and does it reverse? how many cells will it take?
motor, needs to be in region of 1000kv or a bit less to haul the heavy hull, and consider its only a single screw. size, Im not sure, poss 38 to 40 (the first two numbers of the spec of the motor, someone else can get to this)
if the esc is rated for it, run 6 cells, two 3 cell packs, minimum really needs to be 4000mah, and a good c rating, 40c upwards, or the lipo will drain too quick, and starting point for me would be cheap plastic "x" props, at 50mm, 52.5mm and 55mm to test.
5mm shaft, 4mm is marginal
Hobbyking is the best place, look there, you dont need to be buying expensice equipment when you are at this testing stage.
this will somewhat replicate how I arrived at my Huntsman set up, same size, similar weight, although the deep v hull of the Huntsman makes it handle very different.👍
Unless someone comes on with evidence of what they use, and the results, this is it. Have you looked at the boat harbour section, see what people have?
Paul
In Summary Ray,
keep your esc, its fine, but is it for brushless, and does it reverse? how many cells will it take?
motor, needs to be in region of 1000kv or a bit less to haul the heavy hull, and consider its only a single screw. size, Im not sure, poss 38 to 40 (the first two numbers of the spec of the motor, someone else can get to this)
if the esc is rated for it, run 6 cells, two 3 cell packs, minimum really needs to be 4000mah, and a good c rating, 40c upwards, or the lipo will drain too quick, and starting point for me would be cheap plastic "x" props, at 50mm, 52.5mm and 55mm to test.
5mm shaft, 4mm is marginal
Hobbyking is the best place, look there, you dont need to be buying expensice equipment when you are at this testing stage.
this will somewhat replicate how I arrived at my Huntsman set up, same size, similar weight, although the deep v hull of the Huntsman makes it handle very different.👍
Unless someone comes on with evidence of what they use, and the results, this is it. Have you looked at the boat harbour section, see what people have?
Paul
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📝 Perkasa for sale
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
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sorry no idea which make it is, as I didn't own it from new, all I can say its very nicely detailed, and is some sort of rigid plastic, no wood.
Its 36 inches long approx., if you want to calculate scale
Thanks
Its 36 inches long approx., if you want to calculate scale
Thanks
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📝 46"Wooden RAF Crash Tender
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
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Ray,
I could be wrong, but imo the 2200kv is way too high, lower kv will give more torque, high kv will give more revs, if you are saying the boat will be heavier than my Huntsman, which has a 900kv, then your 2200kv will just rev its nuts off! you need the torque to get it moving, and to spin a bigger prop, that high kv will not spin a big prop. You can run two 3 cell lipos, wired to double the voltage, but tap into one battery supply to power other things, so then they are on 3 cells, not 6. Also by splitting the battery source, you can balance the boat, as in the pic. I would imagine tyou will be operating the accessories on spare channels from the receiver, if that is the case it wont matter what your drive battery is.
I could be wrong, but imo the 2200kv is way too high, lower kv will give more torque, high kv will give more revs, if you are saying the boat will be heavier than my Huntsman, which has a 900kv, then your 2200kv will just rev its nuts off! you need the torque to get it moving, and to spin a bigger prop, that high kv will not spin a big prop. You can run two 3 cell lipos, wired to double the voltage, but tap into one battery supply to power other things, so then they are on 3 cells, not 6. Also by splitting the battery source, you can balance the boat, as in the pic. I would imagine tyou will be operating the accessories on spare channels from the receiver, if that is the case it wont matter what your drive battery is.
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💬 Re: Pat Tritle original build thread
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 33 Views · 5 Likes
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I remember finding that build, his work was real nice, my hull actually isn't Orca, its been modified to look like it, you can tell from the rear, but close enough to fool people I suppose. Nice work with all the detailing, don't forget the smashed window! its the little things that count, that is if you can be bothered with the relentless statements at the lake of "did you know the window was broken, why don't you fix it"!!
response... watch the film!😁
response... watch the film!😁
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marky
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📝 46"Wooden RAF Crash Tender
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
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Hi Ray,
very difficult to answer really, as other things come into play, the weight of the boat, the propeller, and the speed you actually want to go.
Other will no doubt provide more clarity, all I ask is that if you get advise, make sure its proven and tested!
I can compare to my 4 foot veron Huntsman 28. Its heavy, and runs single screw, so similar in some ways. This has had a number of incarnations, firstly a graupner 700 bb turbo, 52.5mm "X" prop, 10 mins running, the motor was hot on 9.6v, and it was water cooled. A heavy boat wanting speed has a play off.
I then went to brushless in runner. 900kv, running off 6 cell lipo, faster at 22mph, 10 mins runtime, lipos depleted. I then went to a number of outrunners, as they were cheaper. At the time, nearly 8 years ago, there was no info for brushless in large boats, it was all trial and error.
I kept at the time copious notes, comparing voltage, props, gps speed, and found that no more than 1000kv, and 38 to 40 can size, with 52.5 to 55mm "x" props on 6 cells where the best. At 24mph the boat would be on the edge of torque roll.
Cant comment on watts etc, as I cant find my notes! max amp spike was 80a, so your esc will be fine as it wont get pushed, there is a load of headroom with it as you already have it.
Coincidentally I posted an old video of my Huntsman last night, it does however have a belt driven gear ratio reducer fitted, prior to the gearbox I was using a 800kV 40 size can hobbyking outrunner, with a 5mm shaft, 4 mm or less was whipping and bending
bit vague sorry!
Paul
very difficult to answer really, as other things come into play, the weight of the boat, the propeller, and the speed you actually want to go.
Other will no doubt provide more clarity, all I ask is that if you get advise, make sure its proven and tested!
I can compare to my 4 foot veron Huntsman 28. Its heavy, and runs single screw, so similar in some ways. This has had a number of incarnations, firstly a graupner 700 bb turbo, 52.5mm "X" prop, 10 mins running, the motor was hot on 9.6v, and it was water cooled. A heavy boat wanting speed has a play off.
I then went to brushless in runner. 900kv, running off 6 cell lipo, faster at 22mph, 10 mins runtime, lipos depleted. I then went to a number of outrunners, as they were cheaper. At the time, nearly 8 years ago, there was no info for brushless in large boats, it was all trial and error.
I kept at the time copious notes, comparing voltage, props, gps speed, and found that no more than 1000kv, and 38 to 40 can size, with 52.5 to 55mm "x" props on 6 cells where the best. At 24mph the boat would be on the edge of torque roll.
Cant comment on watts etc, as I cant find my notes! max amp spike was 80a, so your esc will be fine as it wont get pushed, there is a load of headroom with it as you already have it.
Coincidentally I posted an old video of my Huntsman last night, it does however have a belt driven gear ratio reducer fitted, prior to the gearbox I was using a 800kV 40 size can hobbyking outrunner, with a 5mm shaft, 4 mm or less was whipping and bending
bit vague sorry!
Paul
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MaggieM
RNinMunich
📝 Veron Huntsman 28 brushless belt driven
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 53 Views · 5 Likes
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Trawling through some youtube videos and found this I did some years ago at Gautby Road lake in Birkenhead, made me smile, this boat is my all time favourite, you can drive it like its stolen, it loves choppy water.
If you like speed and Freddie Mercury, set the quality to 720p (its an old video takem with a camera on my hat!!) and turn up the sound!!😁
If you like speed and Freddie Mercury, set the quality to 720p (its an old video takem with a camera on my hat!!) and turn up the sound!!😁
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jbkiwi
Madwelshman
woodie - paul
Martin555
RNinMunich
📝 fireboat sound unit for twin engines
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 26 Views · 4 Likes
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Following a previous post on another thread, Ive been asked a number of times about the sound unit being used in my (now sold) fireboat.
Rather than hijack that thread, Its here!
Rather than hijack that thread, Its here!
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Ianh
Rookysailor
Dibdawg
Martin555
💬 Re: Barrels finished, shark jaws started, more superstructure painting.
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 30 Views · 1 Like
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I used star wars figures and remodelled them, hooper being by far the best
I use a wick soaked in baby fluid, and a hot wire operated from the drive battery, using a microswitch to turn it on, Oil is fed down the exhaust stack, and once its heated lasts about 15 mins of thick smoke. I opened up the engine hatch on the rear deck to simulate the engine getting thrashed by Quint, with a y adapter from a fishtank I get smoke from the open engine hatch. Got black smoke only once, the oil dried up and the metal box I use for the smoker overhested and started to burn the hull!😁
sound unit must be nearly 10 years old now, needs an update!
I use a wick soaked in baby fluid, and a hot wire operated from the drive battery, using a microswitch to turn it on, Oil is fed down the exhaust stack, and once its heated lasts about 15 mins of thick smoke. I opened up the engine hatch on the rear deck to simulate the engine getting thrashed by Quint, with a y adapter from a fishtank I get smoke from the open engine hatch. Got black smoke only once, the oil dried up and the metal box I use for the smoker overhested and started to burn the hull!😁
sound unit must be nearly 10 years old now, needs an update!
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Skydive130
💬 Re: Barrels finished, shark jaws started, more superstructure painting.
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 33 Views · 4 Likes
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awesome!!
I was lucky enough to find my Orca in a boot sale, it wanted some work, I've had it for several years now, and it always makes me smile. I fitted a sound unit operated by a trigger system from transmitter featuring sound clips, music, dialogue etc downloaded from the film, and a smoke unit, which I love. Its a real head turner as you have to know the film! Figures, I usually hate these on model boats, but somehow Orca just needed a crew!
a long way from you fab build, but Ill share anyway👍
I was lucky enough to find my Orca in a boot sale, it wanted some work, I've had it for several years now, and it always makes me smile. I fitted a sound unit operated by a trigger system from transmitter featuring sound clips, music, dialogue etc downloaded from the film, and a smoke unit, which I love. Its a real head turner as you have to know the film! Figures, I usually hate these on model boats, but somehow Orca just needed a crew!
a long way from you fab build, but Ill share anyway👍
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Colin H
Rookysailor
Skydive130
Martin555
📝 Perkasa for sale
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 32 Views · 3 Likes
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Well Ive finished this now, its refurb done, and runs twin screw, with the option of the third via a transmitter set up.
Its 36 inches long, made from a plastic/resin material, no wood! so no warping, or rotting, or delamination.
Its set up to run on 7.4v lipo (twin cell) for the outboard motors, and 7.4v for the centre motor. I detailed this in an earlier thread, read that for info. It would be easy to just run the two main motors, or all 3 on your chosen battery, nimh, or lead acid.
Radar works on a single 1.5v battery mounted indide teh wheelhousae with a switch to turn on. Model has nice detail, and a weathered look.
Im asking £225, it can be collected if you live local to North Wirral however ther will be no handover, just pick up at distance only, and its paypal please, no cash, or a none refundable deposit secures until lockdown is over. At that point I would offer free delivery to Wirral, parts of Merseyside and Cheshire, but please ask first
You will need your own batteries, receiver battery, I can leave the hobbyking compatible receiver in the boat if you use spektrum
Its 36 inches long, made from a plastic/resin material, no wood! so no warping, or rotting, or delamination.
Its set up to run on 7.4v lipo (twin cell) for the outboard motors, and 7.4v for the centre motor. I detailed this in an earlier thread, read that for info. It would be easy to just run the two main motors, or all 3 on your chosen battery, nimh, or lead acid.
Radar works on a single 1.5v battery mounted indide teh wheelhousae with a switch to turn on. Model has nice detail, and a weathered look.
Im asking £225, it can be collected if you live local to North Wirral however ther will be no handover, just pick up at distance only, and its paypal please, no cash, or a none refundable deposit secures until lockdown is over. At that point I would offer free delivery to Wirral, parts of Merseyside and Cheshire, but please ask first
You will need your own batteries, receiver battery, I can leave the hobbyking compatible receiver in the boat if you use spektrum
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fact77
Scratchbuilder
DannyZ
📝 46"Wooden RAF Crash Tender
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 31 Views · 6 Likes
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Hi Ray,
not much info to go on there my friend, the 120a esc will not catch fire, these things happen when things overheat, and its unlikely you will have a motor that will be drawing more than 120a, as thats crazy high, so using that esc will never get strained. I cant see any info on the motor, so don't know if you are talking about brushed or brushless set up.
My Fireboat was twin screw, two brushless outrunners capable of 25mph, as I recall amp draw on fresh lipos (4 cells per motor) was approx. 60a and I doubt you will have anything like that set up, as I wanted silly speed and short run time. If you can give some extra info, maybe a pic or two, we will be able to add some more advise.
thanks👍
short video of me messing with sound units!
not much info to go on there my friend, the 120a esc will not catch fire, these things happen when things overheat, and its unlikely you will have a motor that will be drawing more than 120a, as thats crazy high, so using that esc will never get strained. I cant see any info on the motor, so don't know if you are talking about brushed or brushless set up.
My Fireboat was twin screw, two brushless outrunners capable of 25mph, as I recall amp draw on fresh lipos (4 cells per motor) was approx. 60a and I doubt you will have anything like that set up, as I wanted silly speed and short run time. If you can give some extra info, maybe a pic or two, we will be able to add some more advise.
thanks👍
short video of me messing with sound units!
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jbkiwi
MaggieM
MouldBuilder
Colin H
Martin555
Ianh
📝 Motor reversing
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 23 Views · 2 Likes
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Hi,
so with planes you would have a throttle stick that rests at the bottom. With boats, or cars, if you want reversing, the throttle stick needs to rest in centre, and generally its best to be sprung. If you have a spare channel, that is sprung centre, such as ailerons, open the tx, and flip the centring spring mechanism to your throttle. Ive done this several times, and the cheap hobbyking/frysky tx etc are a doddle to do, or just buy a tx with sprung throttle. I converted my spekky dx6
then you will need a reversing esc, hk have them, and the mtroniks brand are simple plug and play. If using lipos, make sure they are lipo compatible👍 I was searching for reversing cheap escs last week, there are loads on ebay very cheap
so with planes you would have a throttle stick that rests at the bottom. With boats, or cars, if you want reversing, the throttle stick needs to rest in centre, and generally its best to be sprung. If you have a spare channel, that is sprung centre, such as ailerons, open the tx, and flip the centring spring mechanism to your throttle. Ive done this several times, and the cheap hobbyking/frysky tx etc are a doddle to do, or just buy a tx with sprung throttle. I converted my spekky dx6
then you will need a reversing esc, hk have them, and the mtroniks brand are simple plug and play. If using lipos, make sure they are lipo compatible👍 I was searching for reversing cheap escs last week, there are loads on ebay very cheap
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Ianh
nick
📝 Perkasa Refurb
4 years ago by 🇬🇧 pmdevlin ( Lieutenant)
Lieutenant)✧ 28 Views · 2 Likes
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playing catch up now!
so on the bench the story from the previous owner was that it was polarity reversed which blew the two speed controllers, some wiring was removed and so on, so I have 3 motors, and they are quite small, look like 400 size brushed. To keep things simple, Im not going to do my usual convesion to brushless, and luckily found a new Electronize esc in my spares box.
Cant find anything in relation to instructions, But Im sure these where good for two motors?, Ive fitted an inline fuse to the battery side, and the motor side to be double protected 😇
This now leaves the centre motor, and the conundrum as to the best, but cheapest way to drive this.
Another dig into the boaty spares box (actually living in the attic due to no use anymore!) I found a little reversing esc, think it was originally for a rc car. Luckily it works, but how to control it?
My boat transmitter is a DX6i Spektrum, and has a limited ability to mix channels, so using a spare channel (aux 1 on the receiver) I mixed this channel to the throttle. The transmitter gives the ability to use a switch to operate, so I assigned an unused on/off switch (flaps for a plane) so now I can run the boat with outboard screws as normal, flick the flap switch on, and the third centre screw now operates. As its mixed to the proportional throttle channel, it works the same range as the main motors. Im quite pleased with this, it took some fiddling, but with my work being locked down, time is something I have!
I would like to run things on a 3 cell lipo (11.1v) as this will give a future owner a better choice for their choice of batteries, lipo, lead acid, nimh and so on, but these motors are small, so I think that might over volt them. I have two 2 cell lipos (7.4v) so will run one for the two outboard screws, and one for the centre. As the centre wont get used as much, probably just fast long runs, I can preserve this battery, and switch them over when they start getting depleted. TBH, after about 10 to 15 minutes I generally get bored anyway!, pity I cant water test☹️
so on the bench the story from the previous owner was that it was polarity reversed which blew the two speed controllers, some wiring was removed and so on, so I have 3 motors, and they are quite small, look like 400 size brushed. To keep things simple, Im not going to do my usual convesion to brushless, and luckily found a new Electronize esc in my spares box.
Cant find anything in relation to instructions, But Im sure these where good for two motors?, Ive fitted an inline fuse to the battery side, and the motor side to be double protected 😇
This now leaves the centre motor, and the conundrum as to the best, but cheapest way to drive this.
Another dig into the boaty spares box (actually living in the attic due to no use anymore!) I found a little reversing esc, think it was originally for a rc car. Luckily it works, but how to control it?
My boat transmitter is a DX6i Spektrum, and has a limited ability to mix channels, so using a spare channel (aux 1 on the receiver) I mixed this channel to the throttle. The transmitter gives the ability to use a switch to operate, so I assigned an unused on/off switch (flaps for a plane) so now I can run the boat with outboard screws as normal, flick the flap switch on, and the third centre screw now operates. As its mixed to the proportional throttle channel, it works the same range as the main motors. Im quite pleased with this, it took some fiddling, but with my work being locked down, time is something I have!
I would like to run things on a 3 cell lipo (11.1v) as this will give a future owner a better choice for their choice of batteries, lipo, lead acid, nimh and so on, but these motors are small, so I think that might over volt them. I have two 2 cell lipos (7.4v) so will run one for the two outboard screws, and one for the centre. As the centre wont get used as much, probably just fast long runs, I can preserve this battery, and switch them over when they start getting depleted. TBH, after about 10 to 15 minutes I generally get bored anyway!, pity I cant water test☹️
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Graham93
Martin555
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