Saving Old Seagulls

Just curious, why are they so different ? Is there an advantage in one or the other ?
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OZ-Seagull Group, Clayton Bay, South Australia, 2015. Coming in after an attempt at a maximum speed run.

Here are the bits from a minor pull down (AC860)

I'm measuring a complete box by myself. I did have the ides to sell one of my 102s (dis-assembled) in a plywood box, but now am contemplating a scaled timber box in the Seagull style.

I doubt that I could find matching Pine in Australia, but will get a construction list with dimensions of each piece, including bolts, nails and screws.

Just curious ....
When did Seagulls start to be transported in the box ?
What kind of timber was used ?

Of all my Seagulls, the 40+ is the most troublefree.

Seen in the Broken Hill Railway Museum.[attachment=1]IMGP6201.JPG[/attachment][attachment=0]IMGP6202.JPG[/attachment]

I remember many years ago I was curious about the differences in props. I did calculate the working area of a few Seagull props .... lost the data some time ago. what did interest me at the time was the similarity of the pitch. So I laid a sliding bevel on a C100 prop and a 40+ prop. Century 100 5 b...

102 pushing a tinny into a light breeze ( looks like I'm speeding ... I'M NOT).... almost going backwards, very little tracking!

I made mine by driving a small copper pipe onto the square tang of a small triangular file, then bending the other end to form a handle.

I did the Falkirk - Edinborough - Falkirk trip a couple of years ago, only saw two Seagulls. Heavy weed all the way!

AC 860 sends a Merry Xmas call to all the Seagullers.

I like it because it has removed that silly water only elbow that allows exhaust bubbles to escape.

Im always changing bits, all it takes is the construct a large to small exhaust tube and change the water supply tube. At the moment I have a 102 power unit on a 40+ gearbox, last I had a Century 100 to the same 40+ gearbox. Cant say I've really notice any change in power or speed. And as others hav...