From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Page from a publication detailing various marine engines for 1940 from manufacturers including Briggs & Stratton, Chris-Craft, and Scripps.
| Identifier | ExFiles\Box 133\3\ scan0120 | |
| Date | 1st January 1940 | |
| Briggs & Stratton Inboards The Briggs & Stratton Corp., of Milwaukee, is featuring for 1940 five models of inboard motors, ranging from 1/2 to 4 hp. Each is of 4-cycle design and is air-cooled. A patented high tension, moisture-proof magneto is built into the flywheel, assuring a hot spark for quick starting in all weathers. All pistons and connecting rods are of aluminum alloy, which reduces the weight of these reciprocating parts and increases the motor efficiency. A pump and splash oil system assures proper distribution of oil to all moving parts. Standard equipment includes hand starter, integral gasoline tank with fittings, gasoline filter, throttle speed control, flame arrester, screened blower, and muffler. Two models — the 1 hp. and the 1.4 hp., are furnished complete with reduction gear transmissions. Chris-Craft Exhibits Engines Too Not so many years ago the Chris-Craft Corporation, which had for a long time been designing and building all sorts of power pleasure craft, decided to put the whole outfit under one roof, so to speak, and build engines for its boats as well. In another part of this section there is a discussion of Chris-Craft boats; here we shall say something about the engines. Chris-Craft has announced, for 1940, fourteen different engine models, ranging in power from 60 hp. to 275 hp.; in other words, about every size engine necessary to fit not only the yachts they build themselves but many of those built outside their own yards. New to the Chris-Craft line is a 160 hp. engine, with a bore and stroke of 4¼” and 4¾” and a piston displacement of 404 cubic inches. One of the features of this model is a counter-weighted, statically and dynamically balanced crankshaft. The largest and most powerful of the Chris-Craft marine motors is the new model A-120, with a bore and stroke of 5” and 5¼”, and a cubic inch displacement of 824.7. This engine develops 275 hp. at 2400 r.p.m. and is of the V-8 type. Extra power may be obtained by using high compression heads, dual down-draft carburetors and high lift camshafts, which will increase the power to 350 hp. At the other end of the line is Model “B,” a 4-cylinder engine developing 60 hp. This motor is designed particularly for low operating costs and for use in small utility boats, runabouts, and cruisers. It has a bore and stroke of 3¼” and 4” and piston displacement of 132.7 cubic inches. The Fairbanks-Morse Company presents this new Model 45-A generating set. A 2-cylinder motor, it is rated 5 hp., 32 volts A new unit of the Kermath line is the Sea Mate Special, developed for higher speed work, with Upton reverse and reduction gear Scripps Gasoline and Diesel Engines Now going into its thirty-fifth year as builders of marine engines exclusively, the Scripps Motor Company of Detroit is showing several new engines, recent additions to its line which now ranges from 25 to 316 hp. The most interesting of the new models are the two Scripps Super Hercules Diesels, a “four” and a “six,” which produce 70 and 83 hp. respectively at 2600 r.p.m. These engines are described in detail in the Waterfront News section of this issue of YACHTING. This is Scripps' first contribution to the field of Diesel power. Among the new gasoline engines exhibited by Scripps are Model 168 and its twin, 169, 6-cylinder engines with a bore of 4½” and stroke of 5¾”. The piston displacement is 548 cubic inches and the engines develop 175 hp. at 2400 r.p.m. The two models are of completely opposite construction to provide balanced installation and thoroughly symmetrical appearance in twin installations. Other new members of the Scripps family are downdraft carburetor models utilizing the same cylinder block. They are called 172A and 173A and have a bore of 4¾” and stroke of 5¾”, producing 200 hp. at 2400 r.p.m. The true twin construction of these motors, like all the larger Scripps engines, contributes to perfect boat balance and facilitates easier engine inspection and servicing than is possible with the old method of merely turning the crank shafts in opposite directions. In addition to the new models of the larger engines, Scripps is also featuring | ||