A long time since I posted anything about my build, but Slippery Anne is now coming together, as much as she looks like a wooden aeroplane in this picture, she actually has the feel of a car now and not the collection of bits and bobs she has been for so long.
Good to see her progressing Mark, interesting treatment at the front of the chassis for the spring mount!
Keep up the good work, it is a shame your mentor is not here to see this I am sure she would have been most pleased.
The tail is a glued structure, it is in fact built using the same materials and adhesives used to construct wooden airframes; the glue used is Aerolight 306.
My challenge in building this car is to get the shape correct, I imagine that back in the day they allowed the wood to assume natural bends and curves, if I did that, then the car would have a different shape to the original body, dictated by the grain and density of each individual piece of wood. So almost every piece here is made up of laminations. The resulting structure is very light, strong and dimensionally stable.
The tail will ultimately be covered in doped Irish linen.
I have attempted to make the body exactly as it was in 1925, but do rather struggle to fit into it, so have not completed the structure behind the drivers sest, I may just need to alter this once we start running the car.
You asked me if I used calculation or eye, well
It is a mixture of both, mostly calculation, but always balanced with, 'does it look right?'
My approach has been to scale everything from the period photos against the known dimensions of surviving original components. Then to produce a working drawing, then a template, followed by offering it all up and judging if it looks correct against the period pictures.
John asked why the stringers have 'dove tails' under them; these stringers form a complex compound curve, which unlike the stringers used for the side of the tail I could not plot to my satisfaction on a drawing, so I needed a mounting system which allowed me adjustment during assembly whilst giving a reasonable surface area for the glue and imparting some rigidity to thouse formers made of ply. The following picture taken during assembly of the upper stringers demonstrates my approach, if you look carefully a period picture is laid into the fuel tank mounting against which I am checking the stringers look just right.
Thanks for the close up photos, really beautiful work, I take my hat off to your woodworking skills. I can't work out if there's a recurve on the sides of the tail or whether it's just an optical illusion?
Surely the original car was not so ornate? Will you be able to bring yurself to risk all that meticulous work racing? Hard enough to cover it up.
Do you have details of the original, or just exterior photos?
"I have attempted to make the body exactly as it was in 1925, but do rather struggle to fit into it, so have not completed the structure behind the drivers seat, I may just need to alter this once we start running the car."
"My approach has been to scale everything from the period photos against the known dimensions of surviving original components. Then to produce a working drawing, then a template, followed by offering it all up and judging if it looks correct against the period pictures."
So I suppose the original car was as you call it 'ornate'.