Train T

The Train 2T, 4T and 6T were low power piston engines for light aircraft, produced in France. They were inverted, air-cooled in-line engines with the same bore and stroke, differing chiefly in the number of cylinders.

Design and development
In the 1930s Train introduced a series of air-cooled, inverted in-line piston engines for light aircraft. The T series all used the same cylinders, pistons, connecting rods, valve trains and ignition system, combined into 2 (2T), 4 (4T), and 6 (6T) cylinder units of the same layout. The number of crankshaft bearings (3, 5 or 7) and throws (2, 4 or 6) naturally depended on the number of cylinders, as did the number of cams (4, 8 or 12) on the underhead camshaft. Each cylinder had a swept volume of 0.5 L, so the displacements were 1 L, 2 L and 3 L and the rated outputs 15 kW, 30 kW and 60 hp respectively. The Train 6D was a variant of the 6T with increased bore of 85 mm.

Operational history
Several International 2-litre Class records were set in 1937 by aircraft powered by the Train 4T. On 7 June 1937 M. Duverene averaged 154.5 km/h over 1000 km and 95 km/h over 1000 km in a single engine Kellner-Béchereau E.1. On 27 December 1937 Mme Lafargue reached an altitude of 4,935 m in a Touya, setting both a class and a women's record.

It also powered aircraft on some notable cross-country flights; on 30 December 1937 M. Lenee flew a Kellner-Béchereau E.1 from Elde to Biarritz, a distance of 1229 km; the same day M. Blazy flew a two-seat SFAN 5 aircraft from Guyancourt to Champniers, Charente, covering 330 km.

Six Train 4Ts were used in the 2 seat, 18 m span Potez-CAMS 160 flying boat, a 1:2.6 scale model of the large Potez-CAMS 161 aircraft.

Variants
From Jane's All the World's Aircraft 1938 unless noted


 * Train 2T
 * 2-cylinders, 80 mm, 1 L, 15 kW


 * Train 4T
 * 4-cylinders, 80 mm, 2 L, 30 kW
 * Train 4A - 40-55 hp variant of the 4T
 * Train 4E - 50-55 hp variant of the 4T


 * Train 6T
 * 6-cylinders, 80 mm, 3 L, 60 hp


 * Train 6C-01
 * Powered the Tokyo Imperial University LB-2


 * Train 6D
 * 6-cylinders, 85 mm, 3.4 L, 62 kW

Applications
From Jane's All the World's Aircraft 1938 and www.AviaFrance

4-cylinder models

 * Brochet MB.50 (4T)
 * Carmier T.10 (4A)
 * Caudron C.344 (4T)
 * Chilton D.W.1A (4T)
 * Druine Aigle 777 (4T)
 * Duverne-Saran (4T)
 * Hennion 01 (4A 01)
 * Kellner-Béchereau E.1 (4T)
 * Mauboussin Hémiptère (4T)
 * Morane-Saulnier MS-660 (4E-01)
 * Nicolas-Claude NC-2 Aquilon (4E-01?)
 * Payen AP-10 (4T)
 * Potez-CAMS 160 (4T or 4A-01)
 * Régnier 12 (4T)
 * Touya aircraft (4T)
 * Trébucien Sport (4T)

6-cylinder models

 * Aubert PA-20 Cigale (6T)
 * Duverne-Saran 01 (6T)
 * Kellner-Béchereau EC.4 (6T)
 * Kellner-Béchereau ED.5 (6T)
 * S.E.C.A.T. S.4 Mouette
 * SECAT VI La Mouette (6T)
 * SFAN 5 (6T)
 * Volland V-10 (6T)