So I decided to build another boat !
I had been looking for a new project to occupy my time and give me something to think about in otherwise dull times such as when shopping, dishwashing and all the other similar chores.
The present fleet of boats includes two sailing cruisers, a Rhine pusher, a fast launch, a Clyde Puffer and a crash tender so a workboat offers the variety necessary to add interest. Freelancing would also add to the fun as it would entail searching the web for interesting layout and detail. Size is to match that of the Pusher, Puffer and launch, such that they can all be accommodated in the car As regards design the boat will include many of the details that I enjoy when looking at the real thing.
|Completed boat on test, it's a pity the pond isn't larger ! The intention is to enlarge it this spring so that my fleet has a 'Home water'|
I regard it a challenge to build mainly from scrap, except for the electrics and electronics, so the hunt was on for ply and timber. The older the timber the more likely it is to be knot-free and of general good quality, superior to stock in the local DIY store ! Post WW2 ply is generally WBP (Simply tested by a good soaking ) and anyway all will be protected by paint or varnish coatings.
So the boat will be all wood and the design from my wooden head.
No doubt we have all read a book on our particular interests entitled ' Coarse Rugby '...or something similar, my piece that follows could well be entitled ' Coarse Model Boat Building ' as it describes my, sometimes oblique, approach to model making.
|To add to the interest of the build a different construction method will be used to ensure ' Bags ' of space inside the hull, uninhibited by bulkheads, Simple keel, bulwark and chine formers have been laminated from ply and timber and set-up using suitably sized spacers to provide the hull form.|
One or two additional timbers are required to provide a seating for the skin and to generate the rounded stern, these can be removed later as the skin provides the structural strength. PVA adhesive will be used throughout as it is protected by coating later. Brass pins are used to secure the sheeting and the occasional wooden dowel employed where a pin would otherwise be difficult to insert,
The superstructure will be kept as light in weight as possible. The seemingly over-wide bulwark frame is such that coamings can be fixed to it to provide the water bar at the base of the superstructure. One or two additional timbers are required to generate the rounded stern quarters.
|'Gift wrapped ' for the first flotaion test. The polythene sheet replicates the hull sheathing !|
As the hull took shape, the centre-of-gravity of the structure could be established simply enough but it is helpful with a new hull containing running gear etc., to know where the actual waterline will be, and what are the chances with a freelance design that, with the batteries and gear installed, it can be made to float at that line.
To establish this the hull was ' Gift-wrapped ' in stout plastic sheeting and given a ' Bath test ', Weights being added to simulate that of the superstructure, motors etc.
The result of the ' Bath test ' on the gift wrapped hull showed that the intended waterline could be achieved later, and the material in the sternworks would cause no problem weightwise. With 7lbs plus of weight onboard the shell settled to 1/2" above the intended waterline so plenty of scope for a gel battery, sited low in the ' guts ' of the boat, also motors, controls and superstructure.
The structural frame with its temporary supports proved sufficiently rigid to allow fairing-off using a power planer, set to a very fine cut...so much less hard work than rasp and hand plane. Anyone who has built a full-size dinghy will know how much work fairing-off makes ! The power planer was long enough to span the profiles and thus cut the ' lands ' for the ply sheathing at the correct angle to allow the 1.5mm ply skin to bed down properly. Care was needed however, to ensure that the planer didn't gobble-up the structural members !
|Whilst 4mm ply was used for the under-stern sheeting which is to support rudder posts and propeller shafts 1.5mm ply proved sufficiently rigid for the hull in general when supported at the bulwark and chine profiles, even where there is a lack of curvature to stiffen it.|
The bottom panels were pinned briefly and the overall shape traced for the first rough cut. My 40 year old bandsaw, with metal cutting blade simply eats the stuff and leaves a smooth edge without ply breakout. PVA adhesive is liberally applied and the pins are driven in, working from stern to bow, ensuring that the ply is fully seated on the formers. Where necessary a hunk of metal provides a strongback such that the pin takes all the driving force and the frame does not suffer shock. Pins can be withdrawn or punched-in later.
|Not a lot to be said about the hull side sheeting, although, it has to be said that the process was started, not at the stern but about 60mm forard of the curved stern-quarter formers.|
Coating the frames with adhesive followed by progressive pinning whilst clamping and pressing the skin to the profile formers ensured a good seating. Timing was of the essence here , so the glue coating was applied part along the profiles and completed as the fixings moved for'rd.
With the sides of the hull sheeted, attention turned to the stern, with its rounded quarters.
The combination of flair and curve with use of ply offcuts resulted in the need for a gusset piece to be inserted centrally at the stern.
|It is not a good plan to attempt to lay on curved sheeting starting at the tangent point...better to first lay some flat sheeting then pull the ply around the curve pinning or clamping as one goes. This ensures a smooth transition from flat to radiussed form. The sheeting should continue on past the curve for the same reason. It all looks quite rough in the illustration but filling and sanding are to follow !|
Using this method of generating the hull form, there is a huge amount of space for battery, motor and electronics. The absence of bulkheads offsets the weight of the profile formers which are of 6mm ply, plus the fairing pieces which are laminated onto them to provide lands for the sheeting.
|The bow and stern bulwarks on most boats of this type have pronounced tumblehome at bow and stern. The means of supporting these items on "Freelance'', as the boat is to be named, is illustrated in the sketch herewith. Of course the joint will be planed later to provide a seating for fender strips.|
The bow bulwark took a lot of effort to ensure that it seated onto the profile at the bulwark and onto the foredeck which had been mounted on blocks at the required angle.The curvature ensures the strength to withstand later bumps and it is intended to fit a forward push post.
|At this stage it was time for some small engineering works The rudders and nozzles on my Rhine ' Pusher ' give excellent steering control and considering that the materials came from the scrapbox, cost little besides my time ( At my age, unfortunately a diminishing asset ! )|
So to the lathe and bandsaw. I used 1/16" brass to make the fittings just that bit beefier than those on the Pusher. The nozzle, was formed round a piece if scaffold tube then rivetted.The post was turned from brass and a 5/16" M.E. Thread cut to take the nuts securing it to the hull.....time 45 minutes in all. The posts are 3/16" diameter brass with a 3/16" threaded portion to engage with the nozzle. The rudder blades are soldered into place. Soft soldering has sufficed on the pusher for 2 years of hard usage and was considered OK here. No Lloyds Certificate perhaps but sufficiently durable for my purpose !
|The propeller shafts. universals and propellers are commercial products purchased from my local friendly model shop ' Wycombe Models '. The temporary fixing is unorthodox, hose clips secure the tubes to posts which run each side if the eventual battery position. these allow for easy adjustment until all is lined up correctly and permanent fixing blocks installed when a dose of Cyano will ensure that nothing moves ( ever again ! )|
The work ( or play ) described to this point has taken something of the order of 40 hours. The cost to date something like £30. for ply,pins and running gear. Estimated final cost will be less than £100. The build has been carried on in odd hours snatched from my otherwise very domesticated life.
I see this as pretty good value in terms of entertainment, and an excellent investment when I look forward to the hours of enjoyment my young relatives and I will take from the finished article..............................
Continuing the build of ' Freelance ' 10th August 2004
I found a picture of a workboat with a pushpost and am incorporating the feature into ' Freelance ' with some difficulty owing to the bow geometry. You have only to look at illustrations of the craft that the construction industry use in offshore work to see the immense variety available to the modeler, let's not put them all on one boat though Eh !
So now it was time to concentrate on the upper works. I gave myself a headache with the geometry by having the deckhouse sides inclining inboard as well as a change in line to maintain the side companionways at a sensible width. The technique that resolved the problem was to shape up each 3mm ply panel, hold it in place using small G-clamps, fit the blocks that to stiffen the joints, then drill and pin, leaving the pin heads proud for subsequent removal. On their removal the small overlaps were sanded off, and corners rounded using the minidrill.
I use a 50 mm diameter rubber sanding disc and stick standard, coarse wet and dry to it using PVA. This holds the abrasive but allows easy replacement. The disc is left under a weight overnight, to ensure that the face of the freshly bonded wet and dry finishes up perfectly flat. This all seems a palaver but a lot of discs can be cut from one sheet of wet and dry
|At this stage it seemed, in light of the ' Out of my head ' design, worthwhile running another ' Bath test ' to check the freeboard with all the gear onboard. The boat floated level and with plenty of freeboard to allow more additions in the form of deckhouse, crane, winches, bridge deck and all the other details such as rails and mast. The polythene sheeting serves to keep the hull sheeting dry, as it is not yet sealed.|
|The forward deckhouse is a one piece structure sitting over the coamings bonded to the side decks. This arrangement will provide ample access to the motors and battery or batteries.|
The deckhouse structure is now complete except for cutting ports and vents, the forward section is secured in place temporarily to enable other detail to be lined up. The aft deckhouse, base for the funnels is a fixture.
The pushpost comprises 7 pieces of softwood, necessary to get a fit to the hull and provide the necessary vertical push face. It will be faced with ply at the front edge and the addition of vertical rubber fenders will complete the job...later ! Accurate attachment to the bow presented difficulties, solved by lightly attaching the two main parts into place temporarily with rubber cement, this allowed adjustment for square and plumb with the boat level on it's stand, marking the hull when all was correct. the pieces could then be peeled off for drilling. Next they could be repositioned to the marks and pinned using PVA adhesive for the permanent joint.
The recumbent figure on the foredeck is a mannikin that I use to remind me of the scale that I am working to. I make no drawings for model boats ...it's all in the head you see ! The mannikin, a US soldier will be carved and repainted to become one of the crew of ' Free Lancer ' The name is evolving as we go !
|In the illustration The two pieces of ply on the foredeck are test pieces . All joints are made with PVA and just to make sure of it's waterproof properties I soaked a joint for three days to test it.......100% OK.|
This is reassuring as in practice joints are protected by sealer and several coats of paint, and anyway are seldom more than an hour in the drink! I also soaked my lightweight filler, ( Bondafiller Light ) for the same time and again had success, the supplier tells me that the light weight is achieved by minute glassfibre balls in the resin, this makes sanding and carving easier than conventional 2 part fillers.
|The wheelhouse is virtually completed except internal fittings, and ready for sanding and filling. External glazing will be applied after painting. I|
I made a mock-up ( Yes I've made a few muck-ups in my time too ! ) out of cornflake box card, and stuck it together with sellotape. This enabled me to get the critical angles correct when cutting up the 3mm ply. The window openings were started by drilling the corners using a side and end mill and the straight side cuts by Stanley knife.......................... and I still have the blisters.
My model shop told me of the accelerator that can be used with cyano glue, What a whizz ! I use it combined with medium cyano and it saves a lot of holding time yet the few minutes before applying accelerator can be used for adjusting the angles etc. The accelerator is an aggressive material and must be used with care for eyes and lungs.
I had to resort to buying more 3mm ply to complete the bridge deck, I wonder where the ply goes. The model shop proprietor reckons that it is all over my workshop floor in the shape of sawdust.
|I do seem to have a lot of odd shaped offcuts, never mind, they will come in useful when I look for bulwark support brackets. If not there they will be used in my 3D cartoons such as this one. It is entitled ' Stay in the shallow end ' a warning that many a fond parent has issued to their offspring over the years !|
Now is the time for hull filling and sanding, and a start on the fittings to hold radio, speed controller etc. Then it will be bulwarks, winches, towposts and all the other interesting bits ! Culminating in what a friend calls ' The spoiling bit ', that paint job !
So now I have to complete the decking leaving a substantial hatch in the after deck for access to the steering gear, radio, BEC and so on, Then the tricky job of fixing the inwardly inclined stern bulwarks.
Card templates provided the ( almost ) eventual shape of the aft bulwarks and these were duly soaked on the outer face and persuaded onto the recess left at deck level and fixed with PVA and pins. It was then a fairly straightforward job to infill with the side bulwarks. Joints along the bulwarks will be reinforced by the stanchions(?) yet to be fitted inside the bulwark prior to installing the capping. With 3mm ply and a very sharp plane it is possible to get a fair line along the whole side of the boat. Freeing ports are yet to be cut, left till now to avoid distortion occuring whilst fitting the ply.
|Bulwarks installed. Holding the ply to the bend and fixing it by glueng and pinning was one of theose operations calling for four hands ! Here the bulwarks are trimmed ready for strutting and capping|
The hull has had 2 coats of varnish as a seal and then 2 coats of red primer. Soon we will be back to the bath with all gear installed to establish the actual waterline. This will be marked as 'Frelance ' floats using a waterproof pen fore and aft. Later the line will be completed using the usual pencil and set square dodge.
Now at 70 hours into the build of ' Freelancer ' there is evident progress. I suppose that after 70 hours of scratchbuilding I am at about the stage that the kitbuilder is at when he opens the box. As it is I have struggled some, I have this picture in my mind of what I want the boat to look like, there are details from many boats included in this build. ... railway modelers say ' There is a prototype for everything ', and so there is. You have only to look at illustrations of the craft that the construction industry use in offshore work to see the immense variety available to the modeler, let's not put them all on one boat though Eh !
I found a picture of a workboat with a pushpost and am incorporating the feature into ' Freelance ' with some difficulty owing to the bow geometry.
A large hatch in the afterdeck will similarly serve the radio gear and servos. The aft deckhouse, base for the funnels is a fixture. The deckhouse structure is now complete except for cutting ports and vents, the forward section is secured in place temporarily to enable other detail to be lined up.
This is reassuring as in practice they are protected by sealer and several coats of paint, and anyway are seldom more than an hour in the drink!
|The funnels have been built as boxes and are secured to the deckhouse by captive bolts in their base passing through an oversize hole in the deckhead with a large washer and nut below, this allows final positioning prior to locking up with PVA.|
I had to resort to buying more 3mm ply to complete the bridge deck, I wonder where the ply goes!
The model shop proprietor reckons that it is all over my workshop floor in the shape of sawdust. I do seem to have a lot of odd shaped offcuts, never mind, they will come in useful when I look for bulwark support brackets.
Now is the time for hull filling and sanding, and a start on the fittings to hold radio, speed controller etc. Then it will be bulwarks, winches, towposts and all the other interesting bits ! Culminating in what a friend calls ' The spoiling bit ', that paint job !
I have to complete the decking leaving a substantial hatch in the after deck for access to the steering gear, radio, BEC and so on, Then the tricky job of fixing the inwardly inclined stern bulwarks.
The hull has had 2 coats of varnish as a seal and then 2 coats of red primer. Later the waterline will be completed using the usual pencil and set square dodge.
With the water line established it was time to cut the freeing ports using a minidrill with dental burrs donated by my dentist, great stuff, miniature diamond coated milling cutters eat plywood ! Trouble is that they tend to run away, and need a firm hand !
Bulwark stays and freeing ports cut. The portholes called for a large drill which we don't have, I cut the holes with a small drill and brought them to size with a conical grinding wheel.
The next operation will be to cap the bulwarks, a sample of 1.5mm ply has been tried and it seems that the job will be quite difficult. Essential as the capping is to the appearance it just has to be tackled however.
|Adding the first coat of Dulux primer, starts to bring the whole hull together, the primer dries fast allowing recoating later in the same day.|
|A colour scheme is emerging ! The waterline has yet to be finally established, hence the white strip. The reflected light in the image does not do justice to the ' cutting in ' between colours, A coat of matt varnish will improve the overall appearance later. It wiull also be neecessary to decide on the final appearance, pristine new or weathered in service !.|
120 Hours and counting, Time to fit out the bridge deck and carry on with painting.
Continuing the build of the workboat now renamed ' Free Lancer ' at 20th August
Controls and some instruments also the Skipper and First Mate have been installed in the wheelhouse. The bollards and part of the towgear have been fabricated, sprayed are now set in place on deck. Hawse holes have been turned up on the lathe and set into the bulwarks. Thanks be for the dental burrs !
|The large hatch in the aft deck removedto reveal the supports for radio , rudder servo and speed controller. The servo space on the port side is such as to allow removal at a later date if necessary. The waterline has yet to be determined and painted !|
A solid joint piece has been turned up on the lathe to substitute for the universal joints when lining up the motors with the prop shafts
135 Hours and counting. OK so I needed a change. I The next job will be to insert the props, nozzles and install the twin motors.
|Portholes for the engine room and accomodation turned, painted and installed Bollards installed, hawseholes cut and lined. so we are now readyfor handrail installation|
|Cut handrail stanchions from sheet brass. made a simple jig and drilled for the rails. The stanchions had a baseplate soldered on and with the rails inserted given a couple of coats of paint|
Now at 150 hours into the build the boat is taking on the appearance that I envisaged when I started out early in July. It is a mix of many of the features that I enjoy when looking at the real thing and if nothing else it has character !
Motors have still to be installed using a solid connection during fixing in place of the eventual universal joint. This to line motor and shaft, critical to vibration free running, This is an idea gleaned from Martin. Webmaster and owner at www.modelboatmadness.co.uk a site that I visit frequently and where Martin kindly exhibits models made by many people ( many more skilled than me, but few making freelanced vessels built from scratch and scrap such as Free Lancer )
time out to construct the access steps to the wheelhouse
deck, a mixture of plastic sheet and wire. All fixed to
the removable deckhouse.
Sorry about the flash corona !
Next......... two winches and a crane, also emergency equipment, hatches etc. then the radio, BEC, servo etc. plenty of work to ' keep me out of mischief '
So, for a change, some work inplastic sheet. Fore and aft winches based on two seen on the web.
|The plastic sheet of course is from my local friendly model shop, the winch drums and brake drums from various drainage fittings left over from the last foray into drainage ! They look sufficiently convincing,to me ! And look well set up on the boat. I am still debating whether to leave the boat 'As new ' or to weather it to present an in service appearance.|
|Here is the stern winch temporarily placed on the stern deck............and yet to have holding down bolts installed.|
Now for some more plastic fun, building a convincing looking crane. I don't like making non-working items but a working crane would be too demanding on my spare time. I have seen a few illustrated in Model Boat Magazine and applaud their makers efforts.....not for me however !
192 Hours and we have a crane ! The last 25 hours of sporadic work, carried out betwen domestic duties have resulted in a crane that I am quite pleased with. One's own product is not always pleasing and sometimes exhibits, to the builder at least, the defects that he knows are built-in. OK so I know where are the defects in this latest addition to the boat, but I can live with them !
|I trolled the web and found illustrations of a number of hydraulic cranes, sketched a simplified ver sion and, having bought 2 sheets of plasticard and some valve rubber........ set to.|
The crane is secured using a 7BA stud cyano-ed into the crane standard, taken down through the deck where an oversize washer and nut secure it against rough handking in sevice. The crane like the funnels and the superstucture can be removed in the event of work being required on the hull.
valve rubber 'hydraulic hoses' are stiffened by
1/16" brass wire which makes attachment into holes
drilled in the crane parts and lathe turned cylinders and
rams a simple operation.
The result an articulated but un-motorised assembly.
I must admit that at some tricky stages in the crane construction I thought wistfully of the folk who open the box and,,,,,,,,,, there are the parts all ready for assembly ! But, as the job neared completion well into the 25 hours of scribing, cutting, filing, bonding, turning, tapping, bending, tapping, painting and fitting I found consolation in the saying ' You're an ugly little devil but you're mine, all mine ! '
|Another pond test to determine any additional ballast required to trim the boat brought to mind another ' Solid ' cartoon, It looks as though this chap chose the wrong make of life jacket, and lost his concentration. Meanwhile his remainig crew is doing his best to ' Maintain position ' because.......|
|.......the other member of his crew is unable to assist. He is offdownstream with a valuable bit of gear !|
On a more serious note, It wa time to complete the controls on ' Free Lancer '
engine room, yet to be spruced up with a lick of paint on
the raw ply. A vent in the deckhouse side allows air to
circulate around the speed controller. A fan will be
I use screw joiners to faciltate replacement or rellocation of parts,
|The stern hatch removed, home produced steering gear exposed, plenty of space for further switches etc.|
It was pleasing to find that with all the gear installed, and little other than mast, lights various radars and rails to the wheelhouse deckhead to be installed, that the boat floated level (and with a little added lead well down in the bowels ) to the previously marked waterline.
230 Hours in and with the controls installed came the moment of truth, the big switch on. I have installed an MSonics Mariner 15 Bec with an inline fuse and as usual 2 Como 380 motors. The motors are run in parallel, .......................no need with steerable nozzle/rudders for independent speed control. The radio is 2 channel AM Acoms It is intended to supplement the two channels with a multiswitch at a later date. to facilitate sound effects.
So that is it for now, I will come back to the ' Free Lancer ' page when I test it on the local water. Meanwhile here are a couple of shots of the near finished article.
is a ' Full frontal ' view. Demountable cargo deck, more
rails, mast, navigation lights, krieglights etc., to be
Heeling tests proved the boat to be remarkably stable, Although by no means self righting, sufficient for practical purposes .
Free Lancer 'appears to be attempting an '
African Queen ' attack on the reeds !
Next spring will see the pond extended to provide an ' In-house ' test tank. DV.
252 Hours into build, I have trimmed boat on my home pond using plumbers lead sheeting cut into tiny squares and ' bagged 'for location, it will eventually be fixed in position permanently with plaster.
I have also realigned the motors and cleaned out the propellor tubes as drag caused a couple of fuses to blow. Thank goodness for the recommendation in Model Boat Magazine regarding fuses. It saved me a major problem when, in the dusk, I inserted the battery wrong way round, polarity wise....which could have cost me an electronic speed controller!
The mast has taken shape, it sits on a wooden post and can be removed and replaced by a shorter version if the ' windage ' is too great in bad weather.
mast, the lamps have yet to have the glasses painted on,
I can instal real lighting at a later date (DV)
Now there is the tidying up to do, Touching up the paint job etc. I still haven;'t decided whether to ' Weather 'the paint to give that ' In service ' appearance, at least I will spray down with matt varnish to take the gloss off everthing, Whoever saw a workboat in pristine condition ?
November 16th ( 260 Construction hours to date ) and still adding detail.
|I have installed a demountable structure on the stern deck, I believe it is similar to a fleetdeck and adds a facility for load carrying in the service role.|
Also since the last update I have been adding ballast, well down in the hull to stabilise the boat as well as sealing the after hatch (access to the radio and sterngear) using a silicone paste. The latter to prevent taking in water in bad weather.
|Here's the boat on the only water it will see before next spring, although having been to see the Black Park Boating folk in action we might brave the elements earlir than that ! The boat manouvres well even on our 10' x 10' garden pond and with the mast installed, still ' Self rights ' from 30 degrees of heel.|
|To add a bit of interest for the kids at the pondside, and for fun I have added a ' Dory ' out of Walls icecream lid material, cheap and easy to work........just the way I like it !|
Thanks for visiting the build !