431 SMOKE RINGS News, views & comment on the world of model engineering. 432 POST BAG Letters to the editor. 434 MATTHEW MURRAY’S RACK LOCOMOTIVE OF 1812 Anthony Mount makes the exhaust Tee, the valve cranks, pushrods & eccentrics. 438 CHARLIE
- A SOUTHERN RAILWAY Q1 LOCOMOTIVE IN 31⁄2in. GAUGE Nick Feast makes the reverser & the buffers. 442 ELJAY, A SIMPLE MARINE STEAM ENGINE Martin Ranson describes his latest award winning steam plants. 446 A LOOK INSIDE THE STIRLING ENGINE Ted Pepper unveils some of the mysteries of the Stirling cycle. 450 BUILDING AN OLD MODEL COMPANY REVOLVING ARMATURE ENGINE KIT The editor braves the cold & goes back into his workshop. 452 RINA, A FREELANCE AIR-COOLED HIT & MISS ENGINE Jim service continues by making the cylinder & cylinder head. 455 BOOK REVIEWS For your bookshelf. 456 A MODEL OF A T&K LUBRICATOR IN 1:4 SCALE Peter Chadwick continues with the main pump body. 458 MAKING A WALL MOUNTED SUNDIAL Tony Finn achieves a long-held ambition. 461 EXPERIENCES WITH DIECASTING A MODEL AERO ENGINE CYLINDER HEAD Geoff Ball tries his hand at diecasting. 464 MODEL CAR DESIGN Alex Du Pré concludes his look at large scale model car building. 466 SCOTT HOMER
- LATHE & TOOLMAKER Warwick Jackson looks back at the history of this little-known firm of engineers. 469 COMPETITION Last chance to win a Bf 109 manual. 470 DIARY Forthcoming events.