A dream since I was a child.

A craft which can auto surface and dive.



Click to enlarge 320x240


The screw

A sample device which was marketed on the late 1960.  A remarkable invention by Japanese, but nowadays there are many Chinese made replacement.

A pair of extra fins was installed to make her more stable.

The fins

A sample construction of the automatic mechanism, which was unbalanced by some lead shot.

The main parts

She was composed by
an arrow with point;
a vertical fin;
a rudder;
a stabilizer;
an elevator.


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