Offshore 50 Ketch
Designed by John G. Alden

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Pictures from original flyer by Lion Yachts

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Construction:  

Deck House or Midship Cockpit Aft Cabin Layouts

Sitka spruce spars, (Aluminum Optional), Pedestal Wheel or Wheelbox steering, 9 opening ports, 4 cowl vents, 2 Dorade type, 3 hatches, Engine: Perkins 4-236, 3 bladed prop, and Wilcox-Crittenden No. 51 Toilets.

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Click for Drawing

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Click Here for great article on "Lady Pirate" a Cheoy Lee Alden 50

 
Specs

LOA - 50' 4"
DWL - 34' 2"
Beam - 13' 2"
Draft - 6'6"
Sail Area - 1,154'
Power - 62HP
Displacement -  34,000lbs
Ballast - 13,000lbs lead
Fuel -  180US Gal
Water -  150US Gal

1971 Price
Center Cockpit = $85,000
Aft Cockpit - $79,350

Have read that only 13 were built...james

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Click for Line Drawing

Alden50colordraw.jpg (26857 bytes)
Image too large for my scanner - sorry


Click for Interior shot from ad

This brochure was held onto the last 30 yrs by John Simmons from Canada, his son Bill submitted the info for this web site.  Their boat is Lady Anne a 65 Robb 35' purchased by John new. Thanks for submitting the info.  james...

Listing of Alden Owners 
 Click Here

Here is what I believe is a complete list of all the OS50s built by Cheoy Lee (and one hull built of steel in Holland) as created (for the most part) by Neil Helleberg of the Alden office, just before he closed it down and the plans were all sent to M.I.T. The printed material is from N.H., while the penciled notes are mine. As you can see, there were variations on the main theme (full keel, aft cockpit) but there were more than 20 hulls built.  Albert Lingelbach aboard "Lady Ann"
Click Here for PDF file submitted by Al

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