TWO fresh entrants to the motor marine field have recently made their appearance, one emanating from a well known car firm’s factory, the other being an addition to an already-famous range. The former is the Trojan two-stroke inboard unit. Following closely the Trejan car engine design, it is a four-cylinder with two common combustion chambers, and has a two-throw crankshaft, each throw revolving in a separate section of the crankcase, the division carrying a central bearing. Ignition is by the DelcoRemy coil and battery system, and the lubrication is petroil. The engine is mounted in the hull in a horizontal position, and the auxiliary units—the dynamo and water pump—are disposed so as to be readily accessible. The transmission embodies a simple epicyclic reverse gear, and the propeller runs at engine
speed. The bore and stroke dimensions of the Trojan
engine are inches and 41 inches, and at 850 r.p.m. 12 b.h.p. is given off; its maximum speed is in the neighbourhood of 1,250 r.p.m. The unit complete is listed at £95.
The other engine is a new type Brooke motor of 15-40 h.p. rating. Embodying a six-cylinder monobloc layout, it is of very clean design and is thoroughly up-todate in every respect. It has O.H.V. operated by a doubleroller chain-driven overhead camshaft. There are two carburettors (Zenith), and magneto ignition is used. The makers have had two particular aims in view–light weight and silence, and in both respects the new
unit is remarkable, especially in regard to the former quality, as with starter, generator and reverse gear it weighs but 385 lbs.
Two new books of interest to boating folk have recently been published. One deals with a voyage which will probably appeal to those who long for a really peaceful holiday afloat—a 92-miles trip through canals. It is entitled ” Through the Kennet and Avon Canal by Motor Boat,” and the author (C. H. Smith) has gone to great pains in describing the conditions, surroundings and so forth which he met with during his leisurely and at times (may we say?) tedious journey through this quiet and deserted waterway. His narrative is not uninteresting, and in some ways might prove informative to those who may be contemplating a similar trip themselves. “How to Sail a Dinghy” is the title of the other book. Compact, concise, and illustrated, it is a little publication which anyone who intends to take to the water seriously would do well to purchase and peruse. It is published by the Terminus Press, and costs a shilling.
At 4 6 Ricky.”
The Amateur Outboard Club is to open its season’s programme with a meeting at the Motor Boat Speedways Lake, Rickmansworth, Herts, on Saturday next, 3rd May. The programme will be :—(1) 3 o’clock, B class, A.O.C. members; (2) 3.20, B class, open; (3) 3.40, C class, open; (4) 4 p.m., Unlimited, open; (5) 4.20, Unlimited, open; (6) 4.40, C class, open; (7) 5 p.m., B class, open.
In the open events prizes for the best times in each class will be awarded. These will consist of a first prize of £5, and a second prize of £2.
In addition the first members over the finishing line will receive club prizes in each event. The entry fee is 5s. for members and 7s. 6d. for others.
Passes will be issued to each competitor and his mechanic, admitting them to the competitors’ enclosure and car park free of charge.
Other races will be held on May 24th, June 7th, June 21st, July 5th (Welsh Harp) ; July 12th, July 19th, August 4th, August 23rd, September 6th (Welsh Harp) ; September 13th and September 27th.
Those interested in the club’s activities should communicate with the secretary, Hon. J. D. Leith, at Astcr House, Aldwich.