b'System B Mainsail luff length Number of 3844 27 mm (1 1/16") 3844 Slug-mount trackAbout CB and Slider Battcarft* m* track section 14 mmsystems: see feature pages39\'10" - 46\'6" 12.13 - 14.17 7 9/16"at beginning of this section. 46\'7" - 53\'3" 14.19 - 16.23 853\'4" - 60\' 16.25 - 18.29 960\'1" - 66\'9" 18.31 - 20.35 1066\'10" - 73\'6" 20.37 - 22.44 11*Track extends above sail luff. Using screwpin3845 Mounting kitendstop kits will increase lengths. 3847 Endstop kit/pinstopMast Track 3850 Endstop kit/fixed3844 track mounts to mast using a unique slug system that allows mast-up installation. 3846 Mounting kitUse flanged track when mounting to carbon spars. Track features a groove for3848 Endstop kit/pinstopracing sails with boltropes or slugs. Use C10879 endstop feeder kit to easily3851 Endstop kit/fixedraise sails with boltropes.FastenerPart Length Weight spacing Fastening3864 Mounting kitNo. Description in m oz/ft g/m in mm method 3865 Endstop kit/fixed3844Slug-mount track81 1/82.065.665273 15/16100Mounting slugs 3866 Endstop kit/pinstop3849.2MFlanged track78 3/42121119Adhesive3849.6MFlanged track236 1/4121119Adhesive 627 mmC10879Endstop/feeder kit*15 3/40.422.46362 15/1675Fasteners/adhesive1 1/16" *Use with 3849 flanged track. Contact Harken for price and lead time.14 mmTraveler Track: Drill/Tap 9/16"For masts without internal sail track, attach R27 Midrange traveler track by drillingR27 Midrange 25 mmand tapping the spar. Join track sections with splice links. Order one per track 1" traveler tracksection. Order one low-beam endstop (sold in pairs).Part Ordering FasteningNo. Description Splice link Endstop information method 21 mmR27 Midrange track 1619 E2700 Page 109 Drilling and tapping 13/16"Mounting Kits and EndstopsMounting kit slugs are available for flat or round mast grooves.51 mm (2") 3849Order one kit per track section. Flanged trackUse pinstop endstop to easily remove cars and mainsail. Order one kit only. 3850 38473851 38483865 3866 C10879384538463864MOUNTING KIT ENDSTOP KIT/FIXED ENDSTOP KIT/SCREWPIN ENDSTOP/FEEDER KITTrack Mounting Kits: Slug Mount*Mounting slug Connector slug Fitsat mast groove gapPart Length Weight Mounting Length Weight Connector Min MaxNo. Description in mm oz g slugs/kit in mm oz g slugs/kit in mm in mm3845Round mast groove7/8220.4312193761.273617/16115/8163846Flat mast groove7/8220.561619761.714817/16115/816 33864Flat mast groove**7/8220.4814193761.293713/89.57/1611 Endstop Kits: Slug Mount*Part Track end length WeightNo. Description in mm oz g Mounting slugs/kit3847Round mast groove/pinstop9 1/22418.3234 3 3848Flat mast groove/pinstop9 1/224111.33223 xed (pair) 3850Round mast groove/ 3.3942 3851Flat mast groove/ 3.71052xed (pair) 3865Flat mast groove/ 3.51002xed** 3866Flat mast groove/pinstop**9 1/224111.13163*Includes M6 x 1.0 x 20 or 30 mm fasteners; weights include fasteners; not for flanged track. **For Selden mast section C installations.137'