When Stuart Turner joined two of their ubiquitous 10V engines together, it seemed entirely natural to call the resulting engine a "Double Ten" - it has a sort of logic that appeals to my fairly innocent mind. Doing the same trick on the biggest single cylinder in the range, the 5A, made them come over all poetic so, instead of the predictable (and not, it must be said, inappropriate) "Double Five" it became the "Swan".
This is a Stuart Swan, comprising, effectively, a pair of 5A engines mounted on a common soleplate, complete with reversing gear. The project was started many years ago, work to datehas been done to a good standard and comprises:
Cylinders bored, end covers machined
Trunk guides machined
Soleplate machined
Flywheel machined, bored and keyway cut
Crankshaft machined, assembled with bobweights
Valve chests machined
On the demise of the last owner, some kind soul has spent many hours going through the parts list and numbering all the castings. A complete parts inventory is included, along with a set of drawings. Missing bits are:
1 main bearing half
Centre main bearing
Crosshead pin bush
1 crosshead pin
Valve chest covers
Slide valves
Eccentric sheave
Reverser locking lever
Whilst it would be worth buying the valve chest covers from Stuart if only for aesthetic reasons, the remainder of the parts could be made from stock material - indeed the eccentric sheaves are easier made from bar, I am never quite sure why anybody would want to do them from a casting.