311 SMOKE RINGS News, views & comment on the world of model engineering. 312 POST BAG Letters to the editor. 314 MATTHEW MURRAY’S RACK LOCOMOTIVE OF 1812 Anthony Mount makes the cylinders. 318 CHARLIE
- A SOUTHERN RAILWAY Q1 LOCOMOTIVE IN 31⁄2in. GAUGE Nick Feast makes the valve chest & slide valves. 323 BULLIED’S Q1 VALVE GEAR Don Ashton looks at the full-size Q1. 326 RINA, A FREELANCE AIR-COOLED HIT & MISS ENGINE Jim service continues by making the bedplate assembly. 331 I/C TOPICS Dave Parkes looks at twin 2-stroke design. 334 MODEL CAR DESIGN Alex Du Pré looks at the suspension, gears & differential. 336 MEX COMPETITION ENTRIES Some more winning entries from last year's exhibition. 338 MEX CLUB STANDS Some of the club stands at the exhibition. 341 BUILDING A VERTICAL STEAMDRIVEN BOILER FEED PUMP Ted Holloway continues machining the steam cylinder. 345 A MODEL OF A T&K LUBRICATOR IN 1:4 SCALE Peter Chadwick starts on the main pump body assembly. 348 KEITH’S COLUMN Keith Wilson looks at various topics, railway & otherwise. 351 DIARY Forthcoming events.