Thanks again to Mark and May for those kind words!
I haven't done much this week, partly due to the heat and humidity again but mostly because I just couldn't get into it. This Wednesday we lost our dear 'House Ferret'
Sammy 2. He was just over eight years old but adrenal disease, multiple tumours and finally the beginning of heart failure persuaded our vet to say it was time. We'll never forget his funny antics!
So here's a section I did a couple of weeks ago... The Cockpit Coaming.
First off then we have the very technical wood veneer shaping jig, as shown in all its glory in
Photo 23. This is quite simply a
Poundshop Vitamin C tube! This, by sheer coincidence just happens to be the same diameter as the circular part of the fuselage and, if you cut the tube in half and then slice the top half down its length as shown in that photo, the ‘half tube’ will clip quite securely over the full tube as illustrated in
Photo 24. This is where the ‘How not to’ part comes in! My very first entry into the wooden ship building hobby was the
Constructo ‘Grimsby’ – described as an ‘
English Frigate’ she is actually far too small to be a Frigate at only twelve guns, but she is ‘Frigate Built’ in that she has a single gun deck. In actual fact she would probably be described as a ‘Gun Brig’. The point is however, she was single plank construction – meaning none of this double layer of thin planks milarky, just one layer of blooming thick hardwood planks, about 2mm thick according to the left over spares of which I still have a great deal!
Grimsby came with two massive A1 sheets of plans (drawings) which were a great help as the written instructions amounted to two A4 pages of text! As a complete beginner I was therefore forced to look for additional information regarding the bending of those planks. This was long before the internet or even the excellent range of
Period Ship Handbooks by
Keith Julier and the little book of helpful tips (about twenty pages long and quite expensive back then) which I can’t quite put my hands on at the moment (I know exactly where it is but there’s a ton of heavy moveables in the way)
which I eventually got hold of, supplied details of the steaming process, hot iron gizmos and soaking techniques. The one I finally went with however was a particularly nasty one but ideally suited to that thick wood – soaking in neat Ammonia! Not something I would recommend now, but I did have my workroom out at the back of the garage back then – a lot more ventilation than I have now!
Photo 25 shows the ammonia process under way, this time in a sealed glass container. And it worked! As you can see in the photo, the veneer is actually bending under its own power as the wood became softer and softer. After a few hours I removed the veneer, dabbed off the excess ammonia with paper towels, stuck it between the Vitamin C tubes with a couple of rubber bands to secure them together and then quickly vacated the attic workroom until the following day!
The next evening I removed the veneer from the jig and it was still in the proper curved position. Great! The only problem was, instead of the White Beech veneer I put
in the ammonia, my ‘plywood’ cockpit cover was now Jacobean Oak! In the Grimsby’s case, her hull planks were already a dark mahogany-type colour and the ammonia made no difference to it. I had no idea the stuff did this to light coloured wood though, so back to a less eye watering method it was!
Method number two was the traditional steaming technique. Fortunately Mum has this nifty little steam cleaner (for ovens, curtains or whatever) with a nice bendy spout to direct the steam where you want it when the trigger is pressed. I set the thing on, marked out another piece of veneer and squirted a jet of steam at it while holding the wood in sprung tweezers. I couldn’t believe how quick it was – the veneer curled up into a cylinder in about two seconds flat. This was where I discovered that the veneer curls
towards the steam, not away from it and since I was holding the wood with the pencilled markings towards me, it naturally coiled the wrong way. Simply reversing the veneer and giving it another squirt of steam reversed this instantly. I then had to carefully unwrap the veneer cylinder, place it in between the tubes as before and then wait for it to cool down. The result is shown in
Photo 26 – a nicely curved piece of veneer maintaining its shape.
The next task was to remove the waste wood from the cockpit opening. This was done with a needle shaped diamond dust tool, visible in
Photo 27, making dozens of tiny holes around the pencil lines, the veneer being held in place on the other half of the plastic tube for support. Then using the sharply pointed knife blade used for cutting the paper and card, the holes were very carefully pierced through (again with the veneer held on the tube) until the waste piece could be removed completely as in
Photo 28. I’ll be using another new blade for the next round of paper and card pieces however, the last couple of holes to be joined up actually broke a tiny piece of the blade tip off! The edges of the cockpit were then given a series of very gentle light sandings to remove the majority of the roughness. It didn’t need to be completely smooth as a ‘leather’ padding will be added to cover up the edges later on. The veneer is being test fitted in
Photo 29 together with another pencil line to show the forward edge of the wood. At this point the veneer was finally glued down onto the cardboard fuselage, the extra wood over the sides would be far easier to trim away with the rest of it glued down securely – that veneer is far too delicate to try slicing pieces off with no support under it. The sides
have been shaved away down to the card in
Photo 30 and that forward pencil line which now looks like a huge channel is the result of the extra thin
Exacto Razor Saw. I couldn’t go right through with it though, I had to finish off with a safety razor blade to avoid cutting into the cardboard sides.
With the veneer now shaved and sanded back to the sides, the next task was to change it from being a white beech, to a highly varnished plywood. The first stage was to give it a coat of
Pine wood stain (does exactly what it says on the tin) although to be fair, this is
Blackfriars spirit based wood stain and was probably made and bought years before that catch phrase came out! (
Photo 31). The following evening I gave the wood a second coat of stain and then, the next day the first of three coats of clear gloss varnish as seen in
Photo 32. Note, the varnish doesn’t extend to the very front of the veneer, but stops short, level with the cockpit cut out. The reason for that is the aluminium ‘bonnet’ overlaps the plywood back to that point so I will be gently sanding down the stained veneer to get the metal panel to fit as tightly down as possible.
In the next instalment, the aluminium top panel is fitted on, the cowling gets a new firewall, No.2 gets a new ‘leather’ cockpit padding and both Pups get their up-graded windshields.
Until then, Happy Modelling to you All.
Robin.
Plymouth57 attached the following image(s):
First wooden ship:
The Grimsby 12 Gun 'Frigate' by Constructo Second:
Bounty DelPrado Part Works Third:
HMS Victory DelPrado Part Works 1/100 scale
Diorama of the Battle of the Brandywine from the American Revolutionary War Diorama of the Battle of New Falkland (unfinished sci-fi), Great War Centenary Diorama of the Messines Ridge Assault
Index for the Victory diary is on page 1