Thursday, May 5, 2011

Design 1806 - Helua

This smart looking motorsailer was built of aluminum by the Burger Boat Company of Manitowoc, Wisconsin. She was launched in 1966. She's a big boat, especially for 1966 and one can sense the start of the modern luxury yacht and associated equipment we expect today: complete air conditioning throughout, pressure water system including fresh water wash-down on deck, washer-dryer and extensive electronics for navigation. Galley equipment includes electric stove, garbage disposal and commercial refrigerator. The electrical system is 110 volt provided by two generators.

The sophistication of her electrical system is not surprising considering her owner was Uncas A. Whitaker. Whitaker had a degree in electrical engineering from M.I.T. He was the founder of AMP Incorporated (Aircraft-Marine Products), the world's largest maker of electrical devices and connectors at the time.

Auxiliary power is provided by a single G.M. 71 diesel generating 320 hp at 2,300 rpm. Cruising range under power is 1,300 nautical miles.

Here are the plans.

Principal Dimensions
LOA 72'-6"
LWL 57'-4"
Beam 17'-2"
Draft 5'-7"
Displacement 103,600 lbs
Ballast 20,000 lbs
Sail Area 1,804 sq ft


  1. sirs;
    I had the pleasure of sailing this vessel several times; and I am searching for some mechanical information re gearbox reduction
    on the MH gear that was behind a Detroit Diesel 8-71 Natural that powered HELUA
    was it a 2:1 ? 2.5:1 ? 3:1 ?
    thanks Capt Bob Kimball

  2. great
    I found out it was an MH 25 being a 2.5:1 ratio