Plans to build the 25' Kona Hawaiian Sampan
The Kona is my first foray into Hawaiian Sampan designs. At 25 feet, it is a convenient coastal size that may be trailered or kept in an inexpensive sized slip. These sampans are durable and effective offshore cruisers able to take tough seas, yet carry a good sized load and comfortable mid speed range ride. I took the traditional hull shape and redesigned it to be built of lighter, inexpensive modern materials covered in tough fiberglass and epoxy. An inboard gas or diesel engine of 75-150 horsepower will get it up on a plane and cover the miles quickly without you breaking into an uncontollable string of foul language every time you go to the fuel dock.
Free Study Plans for the Kona Hawaiian Sampan
Our study plans are two of the actual construction drawings. They're not enough information for you to build the boat, but they do give you the overall boat size, shape and construction methods. This is a pdf file readable with the free Adobe Acrobat pdf file reader.
Purchase Construction Plans for the Kona Hawaiian Sampan
IMPORTANT - Read Carefully Before Ordering
If you are purchasing plans that you will be downloading in electronic format, you will NOT be emailed the plans. You must complete the download process yourself. After completing the purchase and having your payment accepted, use the Return to Spira International link to take you to a secure page on the Spira International site where you may download the plans and instructions. DO NOT USE THE [BACK] BUTTON! We will be notified of your purchase, but are not informed if you completed the download of your plans or not. If, for some reason, you cannot download the plans immediately after completing the transaction, e-mail us and we'll make sure you receive the approprite link to download your plans.
If you are purchasing printed plans that you expect shipped to you, use the appropriate button below. The plans will be sent via USPS Priority mail. Allow 1-2 weeks if in the US, and up to 4 weeks or more outside the US.
Want to Know about the Plans and the Difference Between E-Plans and Printed Plans?
Check out this blog post: What Comes With Your Plans and What's the Difference Between E-Plans and Printed Plans?
Electronic Construction Plans for 25' Kona
Imperial (feet and inches) only
Downloadable PDF Plans
No Shipping - You Download Instantly
Printed Construction Plans for 25' Kona
Imperial (feet and inches) only
Paper Plans Mailed to You
+ Shipping ($6 USA, $23 International)
Mail, Phone or FAX Ordering Electronic or Printed Plans
If you wish to receive printed plans, or wish to pay by check, money order or credit card by mail, phone or FAX, just download the pdf order form and price list by clicking on the image below.
About Hawaiian Sampans
The island nation of Japan has a long, rich tradition of exceptionally seaworthy boat designs. When Japanese immigrants came to Hawaii in the late 1800s and early 1900s, they brought with them their knowledge of boat design and construction. From this, the Hawaiian sampan was developed and became the predominant workboat in the middle of the Pacific.
Well, since the happy days of burning plentiful cheap gas are over, it's time to revive some of the successful hulls of the past, especially those that performed very well on modest power. Welcome back the Hawaiian Sampan, a semi-planing seaworthy hull that will really scoot along with modest power. Achieving 20 knots while burning only 3 or 4 gallons per hour is entirely possible. Most modern deep vee planing hulls of equivalent size will burn over double that amount of fuel for the same speed.
Here's a Hawaiian Sampan, you probebly never would have guessed, Yes, it's the SS Minnow from the famous Gilligan's Island TV show.
Follow Spira Boats on:
Contact Spira Boats via: