MK III / MARK IV BROCHURE
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"MARTEC FOLDING PROPS ADD SIGNIFICANT ! IN MODERATE WINDS, 0.5 KNOTS OVER 2-BLADE PRC ABOUT MARTEC ENGINEERING... Form follows function. Elegant. Sculpted.Powerful. Even more powerful performance. Our folding props deliver unparalleled performance, matching and bet- tering fixed two-blade props. Since 1964 we have continually refined and upgraded the Martec folding prop. We have redefined the concept of low-drag sailboat propellers, creat- ing a family of folding, feathering and fixed blade props. We've literally changed the expectations for sailboat auxil- iary power and sailing...

JAILING SPEED OVER FIXED-BLADE PROPS. )PS AND 0.75-1.0 KNOTS OVER 3-BLADE PROPS." Gary Beck, Martec Engineering We call it the Mark IV Geartec. It's truly a rugged solution for a delicate problem. From the start we designed in bigger gears and a larger pivot pin for strength and reliability. Then we carefully integrated it with the most compact hub and blade design possible to achieve the best drag reduc- The large toothed gears (the largest of any geared folder) make the Mark IV virtually impervious teeth of some older teeth provide marine growth fourth generation blade figured for geared...

"THIS WILL DO MORE FOR A BOAT'S SAILING PERFORMANCE THAN ANYTHING I CAN DO TO A SUIT OF SAILS." GENERAL FEATURES • Refined blade design maximizes forward and reverse • Cast in high strength marine bronze • Monel pivot pins for improved anti-corrosion • Monel fasteners • Lowest drag of any available folding propeller Sailing speed gains of one-half to three-quarter knots over fixed two-blade & three-blade props Larger gear teeth for greater strength and reliability Saildrive version comes with rubber cushioned hub Five year warranty backed by thirtyfive years of sales 2257 W. Gaylord Street,...