- Date
- 1996-09
- Kind
- Construction
- Where
- Beaver Island
- Eras
- Modern era
- Concepts
- transportationcommercecommunitycommunication
- Within
- Beaver Island
Summary
Jeff Cashman designed and built a 12-foot double-stepped tunnel-hull “cat” over three months spread across two summers. The September 1996 Beaver Beacon describes his CAD design, wooden plug, rubber-and-fiberglass mold, and 35-horsepower outboard; the boat was clocked at 36.7 mph on GPS, with further testing planned.
Evidence limits
This is a newspaper profile of a prototype and its reported test result, not a boat registration, engineering certification, or complete test log.
Sources
- Describes Cashman designing and building a 12-foot double-stepped tunnel hull from CAD drawings, a wooden plug, a rubber-and-fiberglass mold, and a 35-horsepower outboard; the boat reached 36.7 mph on GPS and was slated for further testing. The holding institution's portal restricts automated access; the archive holds a copy of this issue and can provide it on request.data1 · beaver-island-archive · beaver_beacon · 1996-09_Beaver-Beacon
- The held issue scan confirms the boat-design profile and photographs.data1 · beaver-island-archive · scans · beaver_beacon · issues · 1996-09_Beaver-Beacon
Added 7 August 2026. Recent changes
Cite this article
Beaver Island Archive, “Jeff Cashman tests a locally designed 12-foot tunnel-hull boat in 1996”, https://beaverislandarchive.org/events/beaver-island-jeff-cashman-tunnel-hull-boat-test-1996/, accessed [date], citing Beaver Beacon, September 1996, “If You Saw a White Blur.” (and 1 further source listed on the page).
Last revised 2026-08-07. Fill in [date] with the date you read it — this page is static and cannot know that.
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