Big Boat Captive Ball Traveler Cars are built to handle high loads on boats from 32 to 50 ft., and up to 70ft. with coupled cars. The one-piece solid aluminum construction is lightweight and strong. Machined aluminum Hardkote-anodized races permit Torlon® bearings to transition smoothly from the active to return race for smooth trimming or easing. Stainless steel wire guides keep the balls captive when the car is off the track. Pivoting shackle/toggle cars have low pivot points to handle non-vertical loads. Blocks attach directly to the toggle for a low-profile, compact system. The toggle serves as a stand-up for the mainsheet block.
Big Boat End Controls allow use of 2:1 to 4:1 purchases. Controls attach to the track, eliminating extra holes. Tough one-piece bases and cam arms are machined from a single piece of aluminum. Ball bearing sheaves allow cars to adjust under load, and release instantly in a gust.
High Load Controls are designed for offshore boats with mainsails over 400sq/ft., and allow 2:1 to 6:1 purchases. The 3173 and 3174 controls use 57mm Black Magic Big Boat ball/roller sheaves and high-load aluminum sideplates to handle shock loading.

Boat Size: 32' to 50' (up to 70' with coupled cars) Ball Bearings: Torlon® captive ball bearings Block Type: Control Blocks: 1 9/16" (40mm) Carbo Blocks; 2 1/4" (57mm) Black Magic Blocks on HL End Controls Cleat Type: 150 Cam Matic ball bearing cleats (3170 and Windward Sheeting cars) Track Type: Big Boat CB Track; 3154, 3155, 3156, 3159, 3162 Line Size: 3/8" (7/16" on HL Controls)