Manuals, parts guides, catalogs & drawings
26 documents, all free to open or download. Start with the assembly manual and the parts guide for your boat, then use the catalogs to chase part numbers.
Hobie 21 manuals & parts guides · Hobie parts catalogs · Mast assembly drawings · Mast procedures & measurements · Sailing, rigging & trailering guides · Reference photos · 3D-print files
Hobie 21 manuals & parts guides
Hobie's step-by-step guide from shipping box to sailing: framing the hulls, trampolines, cat cabin, wings, rudders, centerboards, preparing and stepping the mast, boom, sails, hatches, the tent and motor-mount options, the Jennaker, plus righting, trailering, Comptip maintenance and sailing basics.
Exploded diagrams with Hobie part numbers for every assembly on the Sport Cruiser. This is the document to open before ordering or fabricating anything.
The original owner's manual for the racing Hobie 21 (SE). Scanned pages with no text layer, so search inside will not work.
Four dense pages of exploded views and part numbers for the 21 SE: hull/deck, mast, roller furler and bridles, rear crossbar, shrouds, trapeze, boom, tiller crossbar, wings and sails.
Hobie parts catalogs
Full-line Hobie Cat parts catalog. Many H21 fittings (blocks, cleats, pins, rings, rudder hardware) are shared with the H16/H18/H20 and are still listed here.
A later catalog edition. Compare against 2006-07 to see which numbers were superseded or dropped.
Illustrated exploded views across Hobie models. Useful for identifying a mystery fitting by shape.
Sail-related part numbers: battens, batten caps, headboards, sail ties, luff hardware.
Mast assembly drawings
The factory drawing of the complete Sport Cruiser mast assembly. Start here for anything mast-related.
Hobie 16 mast assembly, included for comparison of Comptip and fitting details.
Hobie 16 extrusion-plus-Comptip drawing. Shows how the fiberglass tip joins the aluminum section.
Hobie 18 extrusion cut drawing for the Comptip. Dimensions for the cut and plug.
Hobie Miracle 20 mast assembly drawing, for comparison with the H21 section.
Mast procedures & measurements
Hobie's Comptip retrofit sheet (written for the 14, 16, 18 and HR14). The cut, plug, bonding and foam-injection method is the same technique used on the 21.
Installing the sail luff track on the mast extrusion.
A measured cross section of the Hobie 21 mast extrusion. This is the profile the 3D-printed masthead fitting was designed from.
Sailing, rigging & trailering guides
Hobie's general small-cat guide: balancing, steering, sail power, launching, righting, docking, rudder tuning, trailering and safety tips.
Line types, diameters and lengths used on Hobie Cats. Handy when replacing halyards, sheets and the furling lines.
How to tie and tension battens in a Hobie mainsail.
Print-at-scale template for drilling rudder blades and castings.
Reference photos
Detail photo of the Sport Cruiser centerboard spring arrangement.
The pieces of the masthead float kit laid out.
3D-print files
OrcaSlicer project for the mast fit gauge with a 0.6 mm clearance offset. Open this to re-slice for your own printer.
Sliced fit gauge, 29 mm tall, about 8 h print. Prints a short ring of the mast profile so you can check fit on your extrusion before committing to the full part.
An alternate fit-gauge iteration, same height and print time as the 8 mm gauge.
The full masthead fitting, 105 mm tall, 874 layers, about 35 h print on an Ender-3 V2 Neo. Large file (77 MB).
Have a document that is not here? Brochures, the 21SE assembly manual, sail plans, a Gennaker kit sheet, dealer bulletins, class rules: scan it and send it in. See About.