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Dave Ruther's SPV from Captain Scarlett |
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Well, what can I say. The Spectrum Pursuit Vehicle, or SPV as it's more commonly
known, is one of my favourite Sci-Fi icons. The SPV itself was in fact one of the less puppet-like stars of Gerry Anderson's sixties series Captain Scarlet and the Mysterons. Like many of the Gerry Anderson craft, it was designed by the late Derek Meddings. The SPV was so popular that it was Dinky Toys number one selling toy.
I built an SPV years ago. It was about 2 foot long and featured detailed illuminated interior, the front and rear lights lit up and it had
rubber model aircraft tires. However, I was never that pleased with the result, no matter how I tried to be after the many hours spent on its construction (from fiber glass? Mainly due to it's complex shape.
So, here we are, years later. I have a new found zest for model making. Also, I have learnt a lot and most importantly, learnt how not to do
things. I started by getting my old SPV down from the attic and attempting to put right what had gone wrong…
…No! Start again was the only option. Apart from anything else, I wanted this model to be complimentary in scale to the Maximum Security
Vehicle that I built quite recently.
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On a routine shopping trip, I happened across a toy lorry for sale at a bargain price. This I duly bought for the sole purpose
of using the wheels for my new SPV model. I then drew up plans of the SPV in line with the wheels.
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Then armed with a pile of balsa wood, I began making up patterns in line with the plans. These pieces were then carved to the
correct shapes and glued together. In a matter of a few hours, the SPV was born…
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I coated the entire balsa structure in fibreglass resin, in order to provide some strength and a basis for the automotive filler
I would be applying.
Once this was dry, I covered the model in body filler and sanded it down smooth. The rear section was added from balsa and also filled to blend in with the rest of the body
work.
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The next stage was to create the wheel guards, which run down virtually the entire length of the SPV. These were cut from
bathroom waste pipe. I then super-glued these into position and filled the seam.
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The most difficult part (so far) was to get the vents the correct shape. I cut the vent backing pieces from plasticard, in line
with the plans, to ensure that I kept the same shape whilst applying the filler. I then cut thin strips of plasticard and glued them on, to provide the grills. Another smaller grill was also made for the
top.
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The rear end and the front top, of the SPV, were coated in fibreglass. This is due to needing to remove most of the balsa wood
from underneath and still maintain the strength.
It was now a case of continually sanding, filling and priming to get the shape and surface perfect. Also, more coats of resin
were applied to the model.
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I came to realise that the wheels were not wide enough and to be frank would just look silly on the model. Therefore, I cut the back off of
each wheel and glued them into pairs. Therefore, two wheels became one thicker wheel. The problem however, was that I now didn't have enough wheels! This resulted in having to make a latex mould of one wheel in
order to cast the additional ones in solid resin.
One of the unique things about the SPV, is that it has 6 sets of large twin wheels and 4 sets of smaller ones. By pure luck, I found a bag
of tyres, in my local model shop, exactly the right size! These are used as fenders for model boats. I again had to cut these to make one tyre from two. And as this was the only bag of tyres in the shop, I had to
make another latex mould to cast the remainder from resin.
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Next job was the rear caterpillar tracks. The original studio models featured tracks from a Japanese tin toy. I couldn't obtain
one of these, so I had to make do with what I could make/find.
I patrolled the model shop and bought a Tamiya tank kit, which featured tracks very similar to the ones I wanted and virtually
the exact size! I found a wheel, from a model kit, and cast 7 copies from resin, which would form the bogies. With the aid of photographs, I built up the rear section from widgets, brass, tubing and
plasticard to provide the entire caterpillar assembly.
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Turning my attention back to the SPV itself, I marked the position of the doors. I decided that I wanted both doors opening, with a detailed
interior. The doors were then cut out, using a drill. The edges were filed flat and the doors repositioned. I slid thin pieces of plasticard into the openings around the door and then applied generous amounts of
filler. The plastic card was there to prevent the doors from being sealed back in place. I certainly didn't fancy cutting them out again! Once the filler was dry, I simply prised out the doors. A bit of sanding and
touch up filling, provided a nice snug clean fit for both doors.
I then started on the interior. This involved making two seats from plastic card. One of the advantages of having a computer is the ability
to freeze DVDs and create printed screen grabs - invaluable for making plans. I made the seats out of plastic card with strips of half-round rod for the cushioning. I made up one of the parachute assemblies, which
fits to the back of the seat and then cast a copy from resin. These were then super-glued in place and both seats painted.
The front lights of the SPV were then marked and cut out. The insides of the holes were filed flat and lined with plasticard. The seams were
then filled.
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The model was then gone over with wet and dry sand paper once more and the SPV was then painted, using cellulous car spray.
Decals were colour prints stuck on using spray adhesive (note, the adhesive ate into the decals, so these will need replacing!).
Chrome trim was added using aluminium foil tape and the red and black stripes were trimline tape.
And there we have it. A replica of the SPV.
However, there's more to come. The vehicle looks like it's just come from the showroom and is going to need some dirtying down. Front and
rear lights are needed, as well as the side windows and aerials. Also, apart from seats, there is no interior, so stay tuned.
Dave Ruther
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