Friday, February 17, 2012

Design 1998-C1 - Alpa A42


This past weekend we posted an article about design #1998, a boat named Dida II. She was the prototype for the boat you see here which is described in all of our records as a "motorsailer". It's a bit hard to believe that these boats came from the same tooling as Dida II as the boats are just so different but apparently someone felt a motorsailer model would be a good seller.

Clearly only the hull mold was used. It was a fairly common trick to add headroom by adding a vertical component to the deck above the original sheer and that's just what was done here. That did allow them to add some hull ports which must have made the accommodations much brighter. Alpa used this trick in their other models such as the Alpa 36, design #2172, Alpa 21, design #2204, Alpa A27, design #2241 and the Alpa A34, design #2242.

Here are our own concise designer's comments from the time.


The production run began in 1973 and 8 boats were built to the design.

Here's the company brochure.


Here are the plans.


And here's a shot from the Genoa Boat Show of 1973 which gives a great view of her deck layout.


Principal Dimensions
LOA 40'-1"
LWL 32'-3"
Beam 11'-4"
Draft 5'-10"
Displacement 17,100 lbs
Ballast 9,000 lbs
Sail Area 874 sq ft

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