From the Manta Products Assembly Manual...

Manta Winjammers and Twinjammers are precision pieces of sporting equipment. Their designs combines the strength and durability to handle high-performance situations with the control characteristics that enable you to go for performance with safety.  However, as with any piece of sports equipment, realizing its potentials is up to you... without proper maintenance, performance and safety will both suffer; without developing your sailing skill through study, your enjoyment will be limited.

Therefore, take the responsibility of maintaining your Manta: check that every nut and bolt is tight before every sailing session. Inspect every part and determine its condition.  If repairs are necessary, do them without delay.

In short, keep your craft in the condition it deserves and you will be rewarded with years of safe, reliable sailing fun.
We also suggest that you learn all you can about wind and about sailing. A good introduction to the sport is "Landsailing" by George Siposs (TBA Books, 1974).

Also any book on sailing strategy will be helpful.  The more you learn about sailing, the better you will be able to perform and the more fun you will have.  The suggestions offered in this manual will help you get started in landsaling, but they are also basic safety rules that should be followed at all times.


Have fun and sail safely!

NOTE: Landsailing clubs are an excellent source of information regarding sailing, locations, safety, and sailing etiquette.  When working or walking around any landyacht, keep upwind of the boat, especially the boom, at all times.  A sudden gust can quickly move the boom, or even the entire boat, in your direction. 

NEVER leave a landyacht unsecured!  The best way to "park" your Manta is to gently tip it over by lifting one end of the rear axle.  Place protection under the mast tip to prevent tearing your sail.  Point the leading edge of the sail (NOT the mast tip!) into the wind.  Tighten and tie-off your sheet line.  For extra assurance, tie a "brake" line through the front wheel and around the steering head.

This will keep the boat secure AS LONG AS THE WIND DOESN'T CHANGE DIRECTION.  Be sure to loosen the sheet line BEFORE attempting to stand the boat back up on all 3 wheels.

For the more mechanically endowed sailors, dollies can be constructed and placed under each end of the rear axle.  Tie a "brake" line through the front wheel and around the steering head .  The boat will now "weather cock" whenever the wind shifts.  Be sure to park the boat far enough from obstacles to avoid impact when the boat turns.


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