“WORKBOATS AND THEIR POWER PLANTS – Larger Tuna Boats – The CAMPBELL MACHINE CO. has already taken contracts to build TWO of the largest tuna fishing boats yet laid down in California. These vessels are to be identical, one being for Mr. MANUEL FREITAS and the other one being for Mr. JOAQUIN MEDINA & CO. The general characteristics of these boats are:
Length overall………. 120’ 0’
Beam ……………………. 27’ 0’
Depth of hull ……..… 11’ 6”
They will be built of Oregon pine, heavily timbered to the designs and following the well-known practice of this very competent wooden shipbuilder. An interesting feature in connection with the equipment of these boats is that they are said to be the FIRST fishing boats built in California TO BE EQUIPPED WITH ALL ELECTRICAL DRIVEN AUXILIARY MACHINERY. The main power will consist of a 400-horsepower, 6-cylinder, directly reversible marine diesel engine built and supplied by the Union Diesel Engine Co. in Oakland, California. It is interesting to note in this connection that in the case of each boat, the Union diesel engine is a repeat order, Manuel Freitas is already the owner of a Campbell-built 95’ fishing boat, the ‘DEL MONTE’, powered with a 225-h.p. Union diesel; and JOAQUIN MEDINA & CO., being interested in the ownership of an older boat powered with a 150-h.p. Union diesel.
For auxiliary power, two 30-kilowatt Westinghouse generators are to be installed in each boat. One of these is to be driven by a 45-h.p. Union diesel engine is directly connected, and the other by belt drive, from the main engine. These two generators will supply light and power for the auxiliary machinery.
The boats will be built with large bait tanks and fish holds served by an 8-ton York refrigerating system with 3,000 linear feet of brine coils. The ammonia compressor of this York refrigeration system will be driven by a 10-h.p. Westinghouse marine-type motor.
Two BAIT PUMPS will be installed, each of the centrifugal type with 8” suction and 6” discharge, directly driven by a 7.5 h.p. Westinghouse motor. The bilge pump, anchor windlass, and cargo winch are all of the CAMPBELL MACHINE CO. make and are each driven directly by Westinghouse electric motors.
These two vessels are contracted for delivery July 15, 1929, at a cost of $95,000 each. (equivalent to $1,670,923 today, x2 – ed.)”
(*Source: Pacific Marine Review magazine – March 1929 ed. – Pg. 110)