Reeves offer a design by J Scarth, who won an award with the original model. A friend of mine built one, but found the inadequacies of the drawings very frustrating. He eventually bought the Clarksons drawings, who offered their version, to supplement them, but I can't remember if he found them much better.

Although Clarksons seems to have passed on to Blackgates, the Blackgates Stirling single that they currently list appears to be a 2-2-2 by Martin Evans.

BTW, I can't see the springs in the photo above having much flexibility.

A thought has just occurred that I heard that the Reeves drawings may have been revised in later years, but I'm very uncertain of that.

Edited By Clive Brown 1 on 27/08/2019 08:57:52

Edited By Clive Brown 1 on 27/08/2019 08:59:46

There are two active builders of 5" Stirling singles (4-2-2) on Model Engineering Clearing House forum so an enquiry there may elicit some information.

Regards

Phil