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16 TRE MARINE REVIEW THE WALTERS With Patent Ropeguard Extending to Sternpost in fine weather on the same I.H.P. on any ], and a knot in head seas. We guarantee under cash penalties an extra half knot f a differential pitch superimposed on steamer against any other propeller in the same A poe There is nothing fantastic about the propeller. by a large hub--masked fore and aft by cones -- we practically eliminate the useless middle portions, and the whole power of the engines is thrown onto our broad blade-tips. Ss. T. "ESSEX"? & '"'SIDMOUTH"' SELLICK, Mortey & PRICE, MILFORD Haven, Steamship Offices, 5th of December, 1906. This is to certify that in July last we replaced the propeller on our new S. T. "Essex. with a Walters Patent Propeller, careful speed trials made by ourselves and staff showing 9.9 knots with 98 revs. with a heavy beam swell, as against 9.4 knots on 116 revs. with the first propeller. Encouraged by this, yesterday we fitted her sis- ter ship, the "Sidmouth," also new; the results in this case under similar supervision being 10.2 knots on 114 revs., as against 9.4 knots on 118,revs. with her first propeller. © PAE Te The two boats are somewhat fuller in the body than usual, and both increases of speed were ob- tained on slightly deeper drafts. All deck and engine room sea reports agree that on the "Essex" this propeller is, relatively, still faster in head seas, and that it tows a trawl stead- ier with reduced revs. in worse weather than was previously possible. Our personal appreciation of the Walters. Pro- peller is perhaps best indicated by the fact that we are at present fitting our new boat (building) with it, and discussing the matter of fitting the rest of our existing fleet. CPE MORILEY & PRICE | es Se Re THE Liverpoot, Bristol AND HAYLE STEAMSHIP Co., LtD. (Hosken, Trevithick, Polkinhorn & Co., Ltd.) Haye, 16th May, 1907. Soe | Coriubia," We have pleasure in certifying that we recently fitted the above steamer with a Walters Propeller; that Company guaranteeing us an extra half knot on the same or less consumption, and a knot in head seas, on "No Cure, No Pay" terms. In order to obtain exact comparative data, we first put the steamer over the measured mile; the mean of six runs showing 9.2 knots on 76 revolu- tions. After fitting the Walters Propeller, we again tried her over the measured mile; the mean of six runs showing 9.8 knots on 74 revolutions, the vessel being an inch deeper in the water; an increase of six-tenths of a knot. This result is corroborated by loaded sea pas- Sages; the increased speed in head seas being par- ticularly marked, being reported by careful com- Parison with other steamers as one and a half knots per hour. The steamer now takes from 2% to 3 hours less on her 30-hour Passages from Liverpool to Hayle or Bristol, and vice versa, and is therefore able to ce tides which she was quite unable to do be- ce She also comes astern and answers the helm Ch more readily than she previously did. ate are thoroughly satisfied with the propeller, ea fulfilled all the Walters Company HOSKEN, TREVITHICK, POLKINHORN & CO., LTD. esent or proposed propeller in position on the speed, and if possible, the loaded co-efficient. he sale of our patent rights for America, Ss. S. "CORNUBIA" PARTICULARS REQUIRED FOR DE shaft in the aperture, J. HP. Bee NG: A ae eeteliot se +» Present average speed or proposed G Important to Shipbuilders & Engine makers: We are Open to treat for t » TEVS. per min