boatbuildlog

Design

Class J

Designed by Glen-L Marine

A 9 ft J Class racing runabout from Glen-L Marine, about 85 lb, capable of 35 mph straightaways on a 7.5 cu in motor, with the beam carried wide at the transom for reserve buoyancy and flaring sides to prevent tripping in fast turns. Sheet plywood monoplane bottom; plans and patterns or a frame kit.

Well within the abilities of most first-time builders, and popular with young racers. Allow 50 to 100 hours. Measured medians from logged builds appear below.

What building a Class J actually takes

Medians from the build logs kept on this site, not the designer’s estimate. Nobody has logged this boat here yet, so they are empty until the first builder does.

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Build logs
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Launched
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Median hours
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Median months

Those medians firm up as more people log this boat.

Builds of this boat

Nobody has logged a Class J here yet.

If you are building one, yours becomes the reference: the page the next person building this boat finds when they search for it. One photo and one line is a valid first entry.

Start the first log of this boat

Boats like this one

Same type, closest in length.

Design Plans from LOA Logs
Tubby Tugboat Glen-L Marine 9′ 0″ (2.74 m) 0
Picklefork Glen-L Marine 9′ 6″ (2.9 m) 0
XP-8 Glen-L Marine 8′ 3″ (2.52 m) 0
Tiny Titan Glen-L Marine 8′ 2″ (2.49 m) 1
Squirt Glen-L Marine 10′ 0″ (3.05 m) 1
Tunnel Mite Glen-L Marine 10′ 0″ (3.05 m) 0